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1
Arab, Maliheh. "Fertility Preservation and Important Tips of Cancer in Adolescent and Young Adult (AYA)". Journal of Obstetrics, Gynecology and Cancer Research 5, n. 1 (1 gennaio 2020): 1–5. http://dx.doi.org/10.30699/jogcr.5.1.1.
Testo completo
2
Mizanur Rahim Khan, Md, Mst Hasnunnahar e S. Isshiki. "Production of Amphidiploids of the Hybrids between Solanum macrocarpon and Eggplant". HortScience 48, n. 4 (aprile 2013): 422–24. http://dx.doi.org/10.21273/hortsci.48.4.422.
Testo completoAbstract (sommario):
To restore fertility of the F1 between Solanum macrocarpon and eggplant, amphidiploids were produced through doubling of chromosomes by colchicine treatment. Shoot tips and axillary buds of F1 plants were kept for 2 and 4 days in liquid Murashige and Skoog (MS) media with 0.05% colchicine. As a result of colchicine treatment, two amphidiploids were identified by observing root tip cell chromosome number, stomatal guard cell size, and pollen characteristics. The amphidiploids contained 48 chromosomes, twice the normal diploid number of 24. Stomata size and pollen diameter were significantly larger in amphidiploids than F1. Flower diameter and length and width of anther, petal, and sepal were significantly larger in the amphidiploids than in F1. Pollen stainability was 40% in amphidiploids but only 0.86% in the diploid F1. The amphidiploids, after selfing and backcrossing with S. macrocarpon, set fruits with healthy seeds. Therefore, production of amphidiploids by colchicine treatment restored the pollen and seed fertility of F1 between S. macrocarpon and eggplant. The amphidiploids produced in this study would be very useful in future breeding programs of eggplant.
3
Sahin, Hilal, Asli Irmak Akdogan, Janette Smith, Jeries Paolo Zawaideh e Helen Addley. "Serous borderline ovarian tumours: an extensive review on MR imaging features". British Journal of Radiology 94, n. 1125 (1 settembre 2021): 20210116. http://dx.doi.org/10.1259/bjr.20210116.
Testo completoAbstract (sommario):
Serous borderline ovarian tumours (SBOTs) are an intermediate group of neoplasms, which have features between benign and malignant ovarian tumours and for which, fertility-sparing surgery can be offered. MRI in imaging of SBOTs is, therefore, crucial in raising the possibility of the diagnosis, in order to present the patient with the most appropriate treatment options. There are characteristic MRI features that SBOTs demonstrate. In addition, recent advanced techniques, and further classification into subtypes within the borderline group have been developed. The aim of this article is to review the MRI features of SBOT and provide the reporter with an awareness of the imaging tips and tricks in the differential diagnosis of SBOT.
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Cinnusamy, Prabakaran. "Flowering Annuals Suitable for Problem Soils". International Journal of Current Microbiology and Applied Sciences 12, n. 5 (10 maggio 2023): 99–106. http://dx.doi.org/10.20546/ijcmas.2023.1205.015.
Testo completoAbstract (sommario):
This article discusses the suitability of flowering annuals for problem soils. Problem soils, such as those with poor drainage, high acidity, or low fertility, can pose challenges for growing plants. However, with careful selection, many annuals can thrive in these conditions and provide vibrant and long-lasting blooms. The article explores the characteristics of problem soils and identifies a range of flowering annuals that are particularly well-suited for these environments. These include hardy varieties such as zinnias, marigolds, and cosmos, as well as more delicate species like impatiens and pansies. The article also provides tips for preparing problem soils for planting, including testing and amending soil as necessary. With this information, gardeners can create colorful and successful gardens even in challenging conditions.
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Jing, Fang, Shangli Shi, Wenjuan Kang, Jian Guan, Baofu Lu, Bei Wu e Wenjuan Wang. "The Physiological Basis of Alfalfa Plant Height Establishment". Plants 13, n. 5 (28 febbraio 2024): 679. http://dx.doi.org/10.3390/plants13050679.
Testo completoAbstract (sommario):
Plant height plays an important role in crop yield, product quality, and cultivation management. However, the physiological mechanisms that regulate the establishment of plant height in alfalfa plants remain unclear. Herein, we measured plant height traits, leaf characteristics, photosynthetic physiology, cell wall composition, and endogenous hormone contents of tall- and short-stalked alfalfa materials at different reproductive periods. We analyzed the physiology responsible for differences in plant height. The results demonstrated that the number of internodes in tall- and short-stalked alfalfa materials tended to converge with the advancement of the fertility period. Meanwhile, the average internode length (IL) of tall-stalked materials was significantly higher than that of short-stalked materials at different fertility periods, with internode length identified as the main trait determining the differences in alfalfa plant height. Leaf characteristics, which are closely related to photosynthetic capacity, are crucial energy sources supporting the expression of plant height traits, and we found that an increase in the number of leaves contributed to a proportional increase in plant height. Additionally, a significant positive correlation was observed between plant height and leaf dry weight per plant during the branching and early flowering stages of alfalfa. The leaves of alfalfa affect plant height through photosynthesis, with the budding stage identified as the key period for efficient light energy utilization. Plant height at the budding stage showed a significant positive correlation with soluble sugar (SS) content and a significant negative correlation with intercellular CO2 concentration. Moreover, we found that alfalfa plant height was significantly correlated with the contents of indole-3-acetic acid in stem tips (SIAA), gibberellin A3 in leaves (LGA3), zeatin in stem tips (SZT), and abscisic acid in leaves (LABA). Further investigation revealed that SS, SIAA, and LGA3 contents were important physiological indicators affecting alfalfa plant height. This study provides a theoretical basis for understanding the formation of alfalfa plant height traits and for genetic improvement studies.
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Faskhutdinova, Elizaveta, Maria Osintseva e Olga Neverova. "Prospects of Using Soil Microbiome of Mine Tips for Remediation of Anthropogenically Disturbed Ecosystems". Food Processing: Techniques and Technology 51, n. 4 (12 gennaio 2022): 883–904. http://dx.doi.org/10.21603/2074-9414-2021-4-883-904.
Testo completoAbstract (sommario):
Introduction. Coal industry increases soil pollution with heavy metals and polycyclic aromatic hydrocarbons. Therefore, resoiling is an urgent problem that requires an immediate solution. The present research objective was to substantiate the use of microorganisms from mine tips in order to decrease soil pollution with heavy metals and oil compounds.
Study objects and methods. The review featured five years of publications in Scopus, Web of Science, and Elibrary, which were subjected to analysis, systematization, and generalization.
Results and discussion. Coal industry changes landscapes, flora, fauna, and soil microbiome. Bioremediation uses various microorganisms as means of resoiling. Some microorganisms isolated from coal mining waste are resistant to heavy metals and polycyclic aromatic hydrocarbons and are able to utilize them. For instance, such bacteria as Bacillus and Pseudomonas aeruginosa are capable of degrading oil pollutants. Microorganisms of Enterobacter and Klebsiella species were found to be resistant to copper, iron, lead, and manganese. Bacteria of the genera Bacillus, Arthrobacter, Pseudoarthrobacter, and Sinomonas are now to be resistant to nickel, arsenic, and chromium. Arbuscular mycorrhizal fungi increase the activity of soil enzymes, improve soil fertility, and decompose various organic compounds.
Conclusion. Sequencing methods make it possible to determine the species composition of soils in mine tips in order to search for new strains capable of restoring former mining areas.
7
Shi-Qi, Zhou, Qian De-Qi e Cao Xiu-Yun. "Induction of parthenogenesis, and chromosome behavior in plants of parthenogenetic origin in cotton (Gossypium hirsutum)". Genome 34, n. 2 (1 aprile 1991): 255–60. http://dx.doi.org/10.1139/g91-040.
Testo completoAbstract (sommario):
Different chemical, physical, and biological treatments were applied to emasculated flower buds of cotton hybrids (Gossypium hirsutum, 2n = 4x = 52) of various genotypes with the purpose of inducing haploid parthenogenesis. Of the treatments applied, the most effective chemical treatment was 0.2% colchicine in 0.2% dimethyl sulfoxide (1.22% parthenogenetic seed set), the most effective physical treatment was high temperature (2.66% parthenogenetic seed set), and the most effective biological treatment was pollination with Hibiscus cannabinus pollen (2.33% parthenogenetic seed set). In the progeny of five plants of parthenogenetic origin, chromosome number and meiotic behavior were studied. All were mixoploids at the dihaploid level and yet set bolls almost like normal allotetraploids. Chromosome numbers ranged from 12 to 56 in the root tips within plants, with a somewhat less pronounced variation between pollen mother cells. At meiotic metaphase I in pollen mother cells 89.8% of the chromosomes were associated. Of the bivalents 23.3% showed AA pairing, 18.7% showed DD pairing, and 18.4% showed AD pairing. Trivalents and higher multivalents involved 29.4% of the chromosomes, and 10.2% were univalents. Anaphase I segregation was often unequal. Yet fertility was as high as in the allotetraploid. It is possible that the second generation was formed by parthenogenesis after restitution in the embryonic mother cells.Key words: Gossypium hirsutum, cotton, parthenogenesis, mixoploidy, meiosis fertility.
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Bolaños-Villegas, Pablo, Shih-Wen Chin e Fure-Chyi Chen. "Meiotic Chromosome Behavior and Capsule Setting in Doritaenopsis Hybrids". Journal of the American Society for Horticultural Science 133, n. 1 (gennaio 2008): 107–16. http://dx.doi.org/10.21273/jashs.133.1.107.
Testo completoAbstract (sommario):
The development of new cultivars in Doritaenopsis Guillaum. & Lami orchids is often hindered by factors such as low seed count in hybrids. Cytological study may offer the ability to develop new hybrids by revealing cultivars with good chromosome pairing and high pollen viability, which are somewhat difficult to obtain under current breeding programs. Cross pollination, pollen viability, and chromosomal behavior during meiosis were analyzed to reveal the relation between seed fertility and capsule set in Doritaenopsis hybrids. The number of mature capsules harvested and their relative seed content were used as indices of crossing availability. The results of meiosis were evaluated according to pollen viability detected by fluorescein diacetate and quantification of sporad types by acid fuchsin staining. Chromosome number and pairing at meiosis were observed in root tips or in samples of pollen mother cells. A positive relation was found among high seed set, high frequency of viable tetrads, high degree of chromosome pairing, and low frequency of chromosomal aberrations such as inversions and translocations. On the basis of these factors, three types of hybrids could be distinguished. In type one hybrids, chromosomes paired as bivalents, pollen mother cells divided into tetrads, and capsule setting occurred after pollination of pollen acceptors. In type two hybrids, chromosomes remained mainly as univalents that developed into micromeiocytes, pollen mother cell division was disrupted, and seed recovery was low after pollination. Type three hybrids showed chromosomes paired mostly as multivalents, chromosome bridges, pollen mother cell division with massive failure, and little fertility. In Doritaenopsis orchids, high pollen viability and high fertility depends on a high frequency of normal tetrads, and low seed set in cross-pollination is predicted with micronuclei in the end products of meiosis. The occurrence of chromosomal aberrations may suggest a process of genome differentiation that could compromise breeding efforts if not taken into consideration.
9
Huang, Yanyan, Yudan Jing, Meirong Bei, Hongzhu Yang, Zhengzao Cha, Qinghuo Lin e Wei Luo. "Short-term effects of organic amendments on soil fertility and root growth of rubber trees on Hainan Island, China". Journal of Forestry Research 31, n. 6 (12 settembre 2019): 2137–44. http://dx.doi.org/10.1007/s11676-019-01023-7.
Testo completoAbstract (sommario):
Abstract Rubber [Hevea brasiliensis (Willd. ex A.Juss.) Müll.Arg.] plantations are the largest cultivated forest type in tropical China. Returning organic materials to the soil will help to maintain the quality and growth of rubber trees. Although many studies have demonstrated that organic waste materials can be used to improve soil fertility and structure to promote root growth, few studies have studied the effects of organic amendments on soil fertility and root growth in rubber tree plantations. Here, bagasse, coconut husk or biochar were applied with a chemical fertilizer to test their effects on soil properties after 6 months and compared with the effects of only the chemical fertilizer. Results showed that the soil organic matter content, total nitrogen, available phosphorus and available potassium after the chemical fertilizer (F) treatment were all significantly lower than after the chemical fertilizer + bagasse (Fba), chemical fertilizer + coconut husk (Fco) or chemical fertilizer + biochar (Fbi) (p < 0.05). Soil pH in all organic amendments was higher than in the F treatment, but was only significantly higher in the Fbi treatment. In contrast, soil bulk density in the F treatment was significantly higher than in treatments with the organic amendments (p < 0.05). When compared with the F treatment, soil root dry mass increased significantly by 190%, 176% and 33% in Fba, Fco and Fbi treatments, respectively (p < 0.05). Similar results were found for root activity, number of root tips, root length, root surface area and root volume. Conclusively, the application of bagasse, coconut husk and biochar increased soil fertility and promoted root growth of rubber trees in the short term. However, bagasse and coconut husk were more effective than biochar in improving root growth of rubber trees.
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WARD, Madeleine, Lachlan BRENNAN, Michael BARDSLEY, Michael CARTER e Russell DALTON. "Striving for Egg-Cellence: Step-by-Step Guide to Oocyte Pick Up". Fertility & Reproduction 04, n. 03n04 (settembre 2022): 219. http://dx.doi.org/10.1142/s2661318222741303.
Testo completoAbstract (sommario):
Background: Oocyte pick up (OPU) involves the suction aspiration of ovarian follicles following controlled ovarian stimulation, via an ultrasound guided needle through the vaginal fornices 1 . There is international recognition of a lack of training tools in OPU, highlighting opportunity for technology and simulation to be further developed 1 . Aim: Here we provide a step-by-step approach to performing transvaginal ultrasound guided OPU with supporting video demonstration. Result: Interviews and procedural observation was undertaken with four fertility specialists performing OPU at a single IVF centre. Routine practice was combined with tips and tricks into a step-by-step guide to OPU. Step one covers procedural planning, patient identification and vaginal preparation. Step two discusses the gentle and steady techniques for optimal follicle aspiration, Step three highlights the important steps required for the care of the oocyte to ensure the best outcomes. Conclusion: A meticulous approach to the retrieval of oocyte is paramount to maintaining their quality; maximising training tools for technique is therefore essential 1 .
11
Mejzner, Mirosław. "Fizjologia i rozrodczość kobiety w pismach Metodego z Olimpu i Ambrożego z Mediolanu". Vox Patrum 66 (15 dicembre 2016): 103–26. http://dx.doi.org/10.31743/vp.3448.
Testo completoAbstract (sommario):
Topics concerning women’s physiology and reproduction appear relatively rarely in the reflections of the Fathers of the Church. Most often they perpetuated the beliefs of ancient medicine, benefitting from the appropriate terminology. The originality of their reflection lies in trying to use the “scientific” facts within theological considerations (eg the creation of mankind and the Incarnation of the Son of God) and moral ones (eg the value of sexuality, fertility and parenthood). The scope of this article includes analysis of selected texts of Methodius of Olympus and those of Ambrose of Milan. Both authors had a deep medical knowledge of the issues and their works contain interesting examples related to female reproductive physiology. They were protagonists of an ideal of virginity, but yet, they preserved a positive assessment of fertility and marriage. Worthy of particular emphasis, in the works of Methodius, is the defense of the dignity of every unborn child, whom God himself creates and animates in the womb. The basis of the considerations in Symposium was a passage from Genesis 2: 21-24, to which he gave allegorical meaning, defining human sexuality and procreation as the typology of the divine and ecclesiastical realities. In turn, Ambrose undertook issues such as conception, prenatal development and the birth of a child, in the context of the exceptional role of Mary in the history of salvation and in the Incarnation of the Son of God. Theological considerations were an excellent opportunity for him to express moral teaching and pastoral care, and to provide very practical and helpful, medical and educational tips for women.
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Sunyach, Claire, Barbara Antonelli, Sophie Tardieu, Michele Marcot, Jeanne Perrin e Florence Bretelle. "Environmental Health in Perinatal and Early Childhood: Awareness, Representation, Knowledge and Practice of Southern France Perinatal Health Professionals". International Journal of Environmental Research and Public Health 15, n. 10 (15 ottobre 2018): 2259. http://dx.doi.org/10.3390/ijerph15102259.
Testo completoAbstract (sommario):
The exposure of adults of reproductive age as well as pregnant women and children to environmental contaminants is of particular concern, as it can impact fertility, in utero development, pregnancy outcomes and child health. Consequently, the World Health Organisation (WHO) and international societies advocate including Environmental Health (EH) in perinatal care, yet perinatal health professionals (HPs) hardly put these recommendations into practice. In 2017, a cross-sectional study was performed in a large panel of perinatal HPs in south-eastern France with the aim of painting a picture of their current attitudes, representation, knowledge, and training expectations. Quantitative and qualitative information was collected via auto-questionnaire. Questionnaires were completed by 962 participants, mainly midwives (41.1%), physicians (25.6%) and nursery nurses (11%). Indoor/outdoor air quality and endocrine disruptors were the best-mastered topics, whereas electromagnetic fields and diet gave rise to unsure responses. Overall, perinatal HPs were ill-trained and -informed about the reproductive risks linked to daily environmental exposure. HPs reported scarce knowledge, fear of patient reaction and lack of solutions as the main barriers to providing information regarding EH to the public. Our findings highlight the need to set up EH training programmes focused on scientific knowledge and to provide simple messages and tips to help perinatal HPs deliver advice to populations to mitigate exposure to environmental toxicants.
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Anderson, J. A., C. Mousset-Déclas, E. G. Williams e N. L. Taylor. "An in vitro chromosome doubling method for clovers (Trifolium spp.)". Genome 34, n. 1 (1 febbraio 1991): 1–5. http://dx.doi.org/10.1139/g91-001.
Testo completoAbstract (sommario):
This research reports a new technique for chromosome doubling of clover (Trifolium sp.) axillary meristems via in vitro colchicine application. Plant material utilized included T. pratense (red clover) cv. Kenstar clones, and three interspecific hybrids: T. ambiguum (kura clover) × T. repens (white clover); T. alpestre × T. pratense; and T. sarosiense × T. pratense. Vegetative axillary meristems were excised from plants, surface sterilized, and trimmed to a length of 0.5–1 mm. Meristems were placed on the surface of a shoot proliferation medium (ML8) containing colchicine (0.1%) for 48 or 72 h and then transferred back to ML8. Alternative treatments were to preculture meristems on ML8 for 7 days prior to colchicine treatment. Plantlets with two or three trifoliolate leaves were induced to root on CR2 or RL rooting media. Preculturing of meristems on ML8 prior to colchicine exposure resulted in the highest chromosome doubling frequencies among the different genotypes, although there was apparent genotype × treatment interaction. Chromosome doubling frequencies were as high as 81 and 44% for initial root tips and mature shoots, respectively. To make rapid assessments of ploidy level of flowering plants, pollen shape was examined. Chromosome doubling increased the pollen stainability of the T. ambiguum × T. repens hybrid from 2.5 to 33.6%, but did not result in fertility in the other two interspecific hybrids.Key words: Trifolium, colchicine, chromosome doubling, interspecific hybrids.
14
Hinesley, L. Eric, Frank A. Blazich e Scott A. Derby. "Rooting Softwood Cuttings of Leyland Cypress Outdoors Under Shade". Journal of Environmental Horticulture 24, n. 3 (1 settembre 2006): 124–28. http://dx.doi.org/10.24266/0738-2898-24.3.124.
Testo completoAbstract (sommario):
Abstract Stem cuttings of Leyland cypress [x Cupressocyparis leylandii (A.B. Jacks. & Dallim.) Dallim. & A.B. Jacks], were rooted to determine the effect of A) date of collection, rooting substrate, and mist frequency, B) auxin formulation and concentration, C) rooting substrate, D) substrate fertility, and E) type of cutting and auxin concentration. Results were best for misting intervals of 5 to 7 min during the day, but 10 min was also adequate. Rooting was comparable for softwood cuttings collected in late May or late June. Powder and liquid auxin formulations, which both contained indolebutyric acid (IBA), yielded similar results. Cuttings that were more lignified (light tan color) at the bases benefited the most from higher concentrations [≈ 8000 ppm (0.8%)] of IBA in talc, whereas less mature cuttings (green at the bases) rooted in highest percentages with lower concentrations [≈ 3000 ppm (0.3%)]. Rooting was similar in substrates with a peat:perlite ratio (v/v) of 1:1, 1:2, or 1:4, whereas results were less satisfactory in 100% perlite. Controlled release fertilizer [1.8 kg/m3 (4 lb/yd3)] in the rooting substrate did not affect rooting percent, but greatly increased root mass and quality of rooted cuttings. Doubling the rate resulted in little additional improvement. Rooting was comparable for vigorous side shoots (1st-order laterals) and tips from vigorous upright branches (primary axes) of similar maturity.
15
Wurzburger, Nina, Martin I. Bidartondo e Caroline S. Bledsoe. "Characterization of Pinus ectomycorrhizas from mixed conifer and pygmy forests using morphotyping and molecular methods". Canadian Journal of Botany 79, n. 10 (1 ottobre 2001): 1211–16. http://dx.doi.org/10.1139/b01-079.
Testo completoAbstract (sommario):
We used morphotyping and molecular methods to characterize ectomycorrhizas of bishop pine (Pinus muricata D. Don) and Bolander pine (Pinus contorta ssp. bolanderi (Parl.) Critchf.) from mixed conifer and hydric pygmy forests on the northern California coast. Sixteen ectomycorrhizal morphotypes were described, producing 15 internal transcribed spacer restriction fragment length polymorphism (ITS-RFLP) types, and 12 were identified via ITS sequencing. From a given site, all root tips of a specific morphotype produced identical ITS-RFLP patterns. However, sometimes two morphotypes produced the same ITS-RFLP type, and sometimes samples of the same morphotype from two different sites produced two different ITS-RFLP types. These results indicate that surveys of ectomycorrhizal fungi based on morphology alone are not sufficient, and that grouping morphotypes prior to molecular analysis can expedite the process. Ectomycorrhizas from mixed conifer included Russuloid sp., Tomentella sublilacina (Ellis & Holw.) Wakef., Tuber sp., and two Thelephoroid species. Ectomycorrhizas from hydric pygmy included two Dermocybe spp., a Cortinarius sp., two Thelephoroid spp., and Suillus tomentosus (Kauffman) Singer. Both plant communities contained Cenococcum geophilum Fr.:Fr. The hydric pygmy sites were more similar to each other than to the mixed conifer site (Jaccard similarity). The presence of ectomycorrhizal taxa in one plant community type may reflect biotic (host specificity) or abiotic (soil fertility or hydrology) adaptation.Key words: ectomycorrhiza, bishop pine, Pinus muricata, Bolander pine, Pinus contorta ssp. bolanderi, morphotyping, ITS-RFLP.
16
Tyagi, AP, J. Mccomb e J. Considine. "Cytogenetic and Pollination Studies in the Genus Verticordia DC". Australian Journal of Botany 39, n. 3 (1991): 261. http://dx.doi.org/10.1071/bt9910261.
Testo completoAbstract (sommario):
Aspects of the genetic and physiological barriers to hybridisation have been assessed for the genus Verticordia which contains many species with significant potential for ornamental horticulture. The chromosome numbers of 52 species were analysed using flower buds and root tips. Previously published reports on chromosome numbers were confirmed for 21 species and new numbers reported in a further 31. Self compatibility was present in 20 species and only three species were shown to possess barriers to self pollination. Seed set occurred in two of six interspecific crosses carried out within sections. In 21 wider crosses the degree of pollen tube development was increasingly repressed with taxonomic distance. The chromosome counts also support the reclassification of the genus Verticordia into three subgenera: Chrysoma, Verticordia and Eperephes. Species within each section of a subgenus generally had the same chromosome number. Exceptions occurred in the subgenus Verticordia, sections Verticordia, Intricata and Micrantha. In species with one or two ovules, the chromosome number was also low (6, 7, 8 or 9) while species with six or more ovules had a higher chromosome number (11 or 22). There was, however, no relationship between chromosome number and chromosome size, nor between chromosome number and any observed feature which might be attributable to polyploidy or allopolyploidy. With the possible exception of V. grandis, which displayed loss of seasonality in flowering, all putative polyploids behaved developmentally as diploids and displayed a high level of male fertility.
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Warnock*, Daniel, e Charles Voigt. "Evaluating Rosemary Cultivars for Use as Christmas Tree-shaped Topiaries". HortScience 39, n. 4 (luglio 2004): 860A—860. http://dx.doi.org/10.21273/hortsci.39.4.860a.
Testo completoAbstract (sommario):
Greenhouse production of rosemary, Rosemarinus officinalis, as small potted Christmas tree topiaries for holiday sales have become necessary for many companies marketing to large retail outlets. Topiaries must be sheared multiple times to obtain an acceptable Christmas tree shape. Cultivars vary in physical attributes suggesting that they may respond differentially to mechanical shearing during production. This study assessed 16 rosemary cultivars for their potential as potted Christmas tree shaped topiaries. Beginning July 2001, rosemary plants derived from vegetative propagation of shoot tips were grown in a greenhouse with temperatures set at 73/65 °F day/night. Plants were pinched immediately after transplant and provided high fertility and maximum light. From August to October, plants were pruned monthly for a total of three shearing events. The crop was considered mature on the targeted market date of 5 Dec. Final plant quality was visually assessed using a 1 to 5 scale that accounted for plant-to-pot ratio, canopy density, foliage quality, taper, and overall appeal with one point being removed for each factor not meeting industry expectations. The cultivars varied in their performance as Christmas tree shaped topiaries with most being unacceptable. Many of these cultivars had minimal basal branching, perhaps due to selection for use as standard ball shaped topiary performance. Six of the cultivars, `Athens Blue Spire', `Taylor's Blue', `Herb Cottage', `Golden Rain', `Shady Acres', `Rex', and `302100', were suitable for commercial use having visual ratings ranging from 3.8 to 4.5. We suggest that these cultivars be examined for additional attributes that may enhance their performance as Christmas tree shaped topiaries.
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IRFAN, Muhammad, Javaid Ahmed SHAH, Muhammad ABBAS, Muhammad Ahmed AKRAM e Nizamuddin DEPAR. "Optimum wheat productivity under integrated plant nutrient management is associated with improved root system and high nutrient efficiency". EURASIAN JOURNAL OF SOIL SCIENCE (EJSS) 12, n. 2 (1 aprile 2023): 111–21. http://dx.doi.org/10.18393/ejss.1204543.
Testo completoAbstract (sommario):
Depleting soil fertility and low fertilizer efficiency in alkaline calcareous soils are serious issues worldwide creating an immediate threat to environment and food security. Integrated nutrient management (INM) can be a promising eco-friendly strategy for improving crop performance and resource efficiency to resolve these concerns. A field study was conducted to investigate the integrated effect of organic sources [farm yard manure (FYM) @ 10 tons ha-1 and press mud (PM) @ 5 tons ha-1] along with various NPK rates [100, 75, 50% recommended dose of fertilizer (RDF)] on root system, nutrient efficiency, and yield of wheat cultivar Kiran-95. Longest roots were measured in FYM + RDF50 while highest surface area and number of root tips were recorded in PM + RDF50 than RDF alone. However, maximum root volume and average root diameter was observed in PM + RDF100 and PM + RDF75, respectively compared with RDF only. PM + RDF100 considerably enhanced grain yield and related traits i.e., spike length, tillers count m-2 and 100-grain weight as compared to RDF only. Integration of PM and 100% RDF showed higher NPK uptake, than RDF alone. Recovery efficiency (RE) of NPK was calculated higher at lower fertilizer rates and vice versa. The sole application of RDF100 showed least RE of NPK whilst PM + RDF50 revealed higher RE of NPK. The results suggested that INM could be a sustainable approach to enhance wheat productivity and nutrient efficiency in alkaline calcareous soils. In addition, PM along with RDF100 NPK fertilizers proved superior in improving root traits and nutrient accumulation thereby increasing wheat grain yield.
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Kapetanov, Milos, Dubravka Potkonjak, Igor Stojanov, Milica Zivkov-Balos e Sandra Jaksic. "Clinical and pathomorphological diagnostics of mycotoxicosis in parent poultry flock caused by T-2 trychotecene". Zbornik Matice srpske za prirodne nauke, n. 124 (2013): 137–43. http://dx.doi.org/10.2298/zmspn1324137k.
Testo completoAbstract (sommario):
The most relevant mycotoxin from the trychotecene group, T-2, causes prominent citotoxic effects. The toxin is a secondary product of fungi from the genus Fusarium that contaminates feed. Oraly intaken, T-2 is absorbed fast in the upper digestive system and within only 3 to 4 hours later reaches liver, kidneys and muscle tissue. Clinical and pathological changes are sometimes not obvious. The case of mycotoxicosis in a breeder flock of chickens, here presented, is aimed to underline the significance of clinical and pathological diagnosis supported with laboratory analysis that gave an objective causative diagnosis. On the farm, the disease occurred suddenly and with total cessation of feed consumption. First cases were recorded in the flock at the age of 42 weeks. Grouping, intensive breathing and lying with overstretched legs and extended neck were symptoms observed in birds. Evident necrosis of beak tips and painful multi-focal necrosis in oral cavity were recorded during the clinical examination. On section, dark unclothed blood was first observed. Other postmortem findings included: filled gizzard with mucosal erosions and easy-removable cuticle, enlarged congested liver with multi-focal necrosis and subcapsulary bleeding. The mortality rate increased by 4%, and the drop of laying rate was by about 18%. The fertility rate decreased by 22%. There was the increased number of rejected hatching eggs, 12%. Culture of the complete diet resulted in approximately 150000 colonies per 1g of Fusarium. T-2 was detected by using ELISA in concentration of 480 ?g/kg, which corresponded to the upper limit of maximum permitted concentrations for chickens, according to national legislations. This bylaw interpretation of ?tolerable? concentrations of mycotoxins provokes controversy among experts and public.
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Warnock, Daniel F., e Charles E. Voigt. "Rosemary Cultivar Ontogeny Affects Success as Potted Christmas Tree Shaped Topiary". HortScience 40, n. 2 (aprile 2005): 343–45. http://dx.doi.org/10.21273/hortsci.40.2.343.
Testo completoAbstract (sommario):
Greenhouse production of rosemary (Rosmarinus officinalis L.) as small potted Christmas tree topiaries for holiday sales has become necessary for many companies marketing to large retail outlets. Topiaries must be sheared multiple times to obtain an acceptable Christmas tree shape. Cultivars vary in physical attributes, suggesting that they may respond differentially to mechanical shearing during production. This study assessed sixteen rosemary cultivars for their potential as potted Christmas tree shaped topiaries. Beginning July 2001, rosemary plants derived from vegetative propagation of shoot tips were provided high fertility and maximum light in a greenhouse. From August to October, plants were pruned monthly for a total of three shearing events. The crop was considered mature on the targeted market date of 5 Dec. Final plant quality was visually assessed using a 1 to 5 scale that accounted for taper, plant-to-pot ratio, canopy density, foliage quality, and overall appeal, with one point being removed for each factor not meeting industry expectations. The cultivars varied in their performance as Christmas tree shaped topiaries with most being unacceptable due to minimal basal branching or excessive leaf burn that negatively impacted shape, taper, and aesthetics. Six of the cultivars, `Taylor's Blue', `Herb Cottage', `Joyce DeBaggio' (Golden Rain), `Shady Acres', `Rexford' (Rex), and an unnamed clone, were suitable for commercial use having visual ratings ranging from 3.8 to 4.5. These cultivars had equally healthy foliage with little damage. `Taylor's Blue', `Shady Acres', `Joyce DeBaggio' (Golden Rain), the unnamed clone, and `Herb Cottage' had foliar damage ratings ranging from 3.3 to 3.8 and were not significantly different from the most healthy cultivars, `Logee White' (Thinleaf White), `Salem', and `Hill Hardy', all of which had mean ratings of 4.0. These cultivars should be examined for additional attributes that may enhance their performance as Christmas tree shaped topiaries.
21
Lijnen, H. R., K. Okada, O. Matsuo, D. Collen e M. Dewerchin. "2-Antiplasmin Gene Deficiency in Mice Is Associated With Enhanced Fibrinolytic Potential Without Overt Bleeding". Blood 93, n. 7 (1 aprile 1999): 2274–81. http://dx.doi.org/10.1182/blood.v93.7.2274.
Testo completoAbstract (sommario):
Abstract 2-antiplasmin (2-AP) is the main physiologic plasmin inhibitor in mammalian plasma. Inactivation of the murine 2-AP gene was achieved by replacing, through homologous recombination in embryonic stem cells, a 7-kb genomic sequence encoding the entire murine protein (exon 2 through part of exon 10, including the stop codon) with theneomycin resistance expression cassette. Germline transmission of the mutated allele was confirmed by Southern blot analysis. Mendelian inheritance of the inactivated 2-AP allele was observed, and homozygous deficient (2-AP−/−) mice displayed normal fertility, viability, and development. Reverse transcription-polymerase chain reaction confirmed the absence of 2-AP mRNA in kidney and liver from 2-AP−/− mice, in contrast to wild-type (2-AP+/+) mice. Immunologic and functional 2-AP levels were undetectable in plasma of 2-AP−/− mice, and were about half of wild-type in heterozygous littermates (2-AP+/−). Other hemostasis parameters, including plasminogen activator inhibitor-1, plasminogen, fibrinogen, hemoglobin, hematocrit, and blood cell counts were comparable for 2-AP+/+, 2-AP+/−, and 2-AP−/− mice. After amputation of tail or toe tips, bleeding stopped spontaneously in 2-AP+/+, as well as in 2-AP+/− and 2-AP−/− mice. Spontaneous lysis after 4 hours of intravenously injected 125I-fibrin–labeled plasma clots was significantly higher in 2-AP−/− than in 2-AP+/+ mice when injecting clots prepared from 2-AP+/+ plasma (78% ± 5% v 46% ± 9%; mean ± SEM, n = 6 to 7; P = .02) or from 2-AP−/−plasma (81% ± 5% v 46% ± 5%; mean ± SEM, n = 5; P = .008). Four to 8 hours after endotoxin injection, fibrin deposition in the kidneys was significantly reduced in 2-AP−/− mice, as compared with 2-AP+/+ mice (P ≤ .005). Thus, 2-AP−/− mice develop and reproduce normally; they have an enhanced endogenous fibrinolytic capacity without overt bleeding.
22
Lijnen, H. R., K. Okada, O. Matsuo, D. Collen e M. Dewerchin. "2-Antiplasmin Gene Deficiency in Mice Is Associated With Enhanced Fibrinolytic Potential Without Overt Bleeding". Blood 93, n. 7 (1 aprile 1999): 2274–81. http://dx.doi.org/10.1182/blood.v93.7.2274.407a30_2274_2281.
Testo completoAbstract (sommario):
2-antiplasmin (2-AP) is the main physiologic plasmin inhibitor in mammalian plasma. Inactivation of the murine 2-AP gene was achieved by replacing, through homologous recombination in embryonic stem cells, a 7-kb genomic sequence encoding the entire murine protein (exon 2 through part of exon 10, including the stop codon) with theneomycin resistance expression cassette. Germline transmission of the mutated allele was confirmed by Southern blot analysis. Mendelian inheritance of the inactivated 2-AP allele was observed, and homozygous deficient (2-AP−/−) mice displayed normal fertility, viability, and development. Reverse transcription-polymerase chain reaction confirmed the absence of 2-AP mRNA in kidney and liver from 2-AP−/− mice, in contrast to wild-type (2-AP+/+) mice. Immunologic and functional 2-AP levels were undetectable in plasma of 2-AP−/− mice, and were about half of wild-type in heterozygous littermates (2-AP+/−). Other hemostasis parameters, including plasminogen activator inhibitor-1, plasminogen, fibrinogen, hemoglobin, hematocrit, and blood cell counts were comparable for 2-AP+/+, 2-AP+/−, and 2-AP−/− mice. After amputation of tail or toe tips, bleeding stopped spontaneously in 2-AP+/+, as well as in 2-AP+/− and 2-AP−/− mice. Spontaneous lysis after 4 hours of intravenously injected 125I-fibrin–labeled plasma clots was significantly higher in 2-AP−/− than in 2-AP+/+ mice when injecting clots prepared from 2-AP+/+ plasma (78% ± 5% v 46% ± 9%; mean ± SEM, n = 6 to 7; P = .02) or from 2-AP−/−plasma (81% ± 5% v 46% ± 5%; mean ± SEM, n = 5; P = .008). Four to 8 hours after endotoxin injection, fibrin deposition in the kidneys was significantly reduced in 2-AP−/− mice, as compared with 2-AP+/+ mice (P ≤ .005). Thus, 2-AP−/− mice develop and reproduce normally; they have an enhanced endogenous fibrinolytic capacity without overt bleeding.
23
Athiyazahra, Rania Ramadha, Ali Budi Harsono e Hartanto Bayuaji. "Profil Pasien Kanker Ovarium yang Dilakukan Fertility Sparing Surgery di RSUP Dr. Hasan Sadikin Bandung Tahun 2017-2020". Indonesian Journal of Obstetrics & Gynecology Science 5, n. 1 (28 marzo 2022): 87–93. http://dx.doi.org/10.24198/obgynia/v5n1.349.
Testo completoAbstract (sommario):
Tujuan: Tujuan penelitian ini untuk menggambarkan karakteristik pasien kanker ovarium yang dilakukan tindakan fertility sparing surgery. Metode: Penelitian deskriptif menggunakan data rekam medis pasien kanker ovarium yang dilakukan tindakan fertility sparing surgery di RSUP Dr. Hasan Sadikin Bandung pada tahun 2017-2020. Sampel yang digunakan sebanyak 35 data rekam medis menggunakan metode total sampling. Hasil: Dari 35 pasien, sebagian besar berusia 20-29 tahun (37%),belum menikah (54%), dan nulipara (71%), Tindakan fertility sparing surgery dilakukan pada stadium I-II untuk tipe sel epitel, stadium I-III untuk tipe sel germinal, dan hanya pada stadium I untuk tipe sel sex cord stromal. Pasien usia <20 tahun dilakukan tindakan fertility sparing surgery pada stadium III dengan jenis histopatologi tipe sel germinal sementara pasien dengan usia>20 tahun mayoritas dilakukan tindakan pada stadium I dengan tipe histopatologi terbanyak adalah tipe sel epitel. Kesimpulan: Tindakan fertility sparing surgery bertujuan untuk mempertahankan organ reproduksi. Karakteristik pasien kanker ovarium yang dapat dilakukan tindakan fertility sparing surgery berusia 20-29 tahun dan nulipara. Tindakan fertility sparing surgery pada tipe sel epitel dan tipe sex cord stromal hanya dilakukan pada stadium dini, sementara pada tipe sel germinal dapat dilakukan hingga stadium III. Ovarian Cancer Patient Profile Undergoing Fertility Sparing Surgery at Dr. Hasan Sadikin General Hospital Bandung From 2017 Until 2020 Abstract Objective: Aimed to describe the characteristics of ovarian cancer patients underwent fertility sparing surgery between 2017-2020 at Dr. Hasan Sadikin General Hospital Bandung. Methods: A descriptive study that used medical records of ovarian cancer patients that underwent fertility sparing surgery at Dr. Hasan Sadikin General Hospital from 2017-2020. The sample used was 35 data, using the total sampling methods. Result: From a total of 35 patients, most were aged 20-29 years (37%), unmarried (54%), and nulliparous (71%). Fertility sparing surgery was performed at stage I-II for epithelial cell, stage I-III for germ cells, and stage I for sex-cord stromal cells. Patients <20 years underwent fertility sparing surgery at stage III with the most common histopathology type is germ cell while patients >20 years underwent fertility sparing surgery at stage I with the histopathology type is surface epithelial cells. Conclusion: Fertility sparing surgery aimed to maintain the reproductive organs. Characteristics of patients who underwent fertility sparing surgery are aged 20-29 years and nulliparous. Fertility sparing surgery can be performed at an early stage for epithelial cell and sex-cord stromal cells, while germ cell can be performed up to stage III. Key words: ovarian cancer, fertility sparing surgery, characteristics
24
Wang, Fen, Chaoran Wang, Binghao Yang, Xinyu Luo, Gaowei Qi, Fajin Ji, Xinkai Guo et al. "Nitrogen Application Timing and Levels Affect the Fate and Budget of Fertilizer Nitrogen in the Apple–Soil System". Plants 13, n. 6 (12 marzo 2024): 813. http://dx.doi.org/10.3390/plants13060813.
Testo completoAbstract (sommario):
This study aimed to determine the effects of the nitrogen (N) application period and level on the fate of fertilizer N and the contribution of N absorption and translocation to apple organ N. Two N application periods (labeled by the 15N tracer technique in spring and summer, represented by SP and SU, respectively) and three N levels (N0, MN, and HN) were used to determine the physiological indexes and aboveground, root, and soil 15N content of 4-year-old dwarf (‘Red Fuji’/M9T337) and arborized (‘Red Fuji’/Malus hupehensis Rehd.) apple trees. The results showed that HN led to shoot overgrowth, which was not conducive to the growth of the apple root system (root length, root tips, root surface area, and root volume) or the improvement of root activity. The contribution of soil N to apple organ N accounted for more than 50%, and the contribution of N application in summer to fruit N was higher than that in spring. Under HN treatment, the proportion of soil N absorbed by trees decreased, while that of fertilizer N increased; however, the highest proportion was still less than 50%, so apple trees were highly dependent on soil N. Under MN treatment, fertilizer N residue was similar to soil N consumption, and soil N fertility maintained a basic balance. Under HN treatment, fertilizer N residue was significantly higher than soil N consumption, indicating that excessive N application increased fertilizer N residue in the soil. Overall, the 15N utilization rate of arborized trees (17.33–22.38%) was higher than that of dwarf trees (12.89–16.91%). A total of 12.89–22.38% of fertilizer 15N was absorbed by trees, 30.37–35.41% of fertilizer 15N remained in the soil, and 44.65–54.46% of fertilizer 15N was lost. The 15N utilization rate and 15N residual rate of summer N application were higher than those of spring N application, and the 15N loss rate was lower than that of spring N application. High microbial biomass N (MBN) may be one of the reasons for the high N utilization rate and the low loss rate of N application in summer.
25
Šobot, Ankica. "Gender roles and education as elements for the explanation of fertility by the type of settlement in Serbia". Demografija, n. 17 (2020): 29–54. http://dx.doi.org/10.5937/demografija2017029s.
Testo completoAbstract (sommario):
This text is aimed at the consideraton of differences related to fertility of urban and non-urban settlements in Serbia, from the point of view of differentiation concerning education and gender roles. The discussion framework consists of the results of relevant empirical researches that consider gender equality, as well as the presented data about level of education for both types of settlements. In terms of fertility, we used census data and presented two indicators. These are the cumulative live birth rates and the shares of women who have not given birth. The focus is on the generations born in the second half of the 20th century, observing the cohorts that are in the reproductive period, as well as those that came out. Differences between urban and non-urban settlements are not only observed for Serbia as a whole, but are also placed within the framework of statical regional areas. The decline in cumulative fertility, the postponement of parenthood and the shares of women without children both in the optimal reproductive period and in the cohorts at the end of reproductive period are more pronounced in the urban population. However, these tendencies also have existed in non-urban settlements, despite the fact that the observed fertility indicators do not reflect the difficulty of regulating low fertility in this type of settlement. Very low cumulative fertility rates in the urban settlements are the result of insufficient adjustment of the institutional framework to emancipatory processes in the sphere of gender roles. The negative effects of traditional patriarchy in non-urban settlements are more visible through some other demographic indicators that are closely related to the issue of low fertility. Hence, the importance of the gender aspect cannot be neglected when it comes to non-urban settlements.
26
Ji, Yingchun, Feinian Chen, Yong Cai e Zhenzhen Zheng. "Do parents matter? Intergenerational ties and fertility preferences in a low-fertility context". Chinese Journal of Sociology 1, n. 4 (dicembre 2015): 485–514. http://dx.doi.org/10.1177/2057150x15614545.
Testo completo
27
Bo., N., e Eva Bernhardt. "Changing Family Ties, Women's Position and Low Fertility". Population (French Edition) 44, n. 2 (marzo 1989): 454. http://dx.doi.org/10.2307/1533596.
Testo completo
28
ATOH, Makoto. "Japan's Below-Replacement Fertility and Its Policy Responses". TRENDS IN THE SCIENCES 22, n. 8 (2017): 8_8–8_11. http://dx.doi.org/10.5363/tits.22.8_8.
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29
Oda, Seiichi. "How to Cope with the Low Fertility Rate". TRENDS IN THE SCIENCES 4, n. 1 (1999): 51–54. http://dx.doi.org/10.5363/tits.4.51.
Testo completo
30
Khalid, Nayab, e Aaqib Qayyum. "An Empirical Analysis of the Growth-Health Relationship in Pakistan". Quantitative Economics and Management Studies 2, n. 3 (11 marzo 2021): 182–91. http://dx.doi.org/10.35877/454ri.qems272.
Testo completoAbstract (sommario):
The purpose of this study is to examine Pakistan's health sector issues and the critical ties between health indicators and economic growth. ARDL analysis has been applied on the data set of Pakistan’s economy, in the time reference to 1990-2020. The study revealed that the important ties between GDP, foreign direct investment, fertility and life expectation in the short run are strong, while mortality rate is negative, but have a significant impact on economic development. The fertility rate has a huge effect on GDP in long-term, while affecting foreign direct investment. The study achieves that countries with developing economic growth will focus more on improving human capital well-being.
31
Sato, Ryuzaburo. "The Meaning of Very Low Fertility from Demographic Perspectives". TRENDS IN THE SCIENCES 9, n. 7 (2004): 8–13. http://dx.doi.org/10.5363/tits.9.7_8.
Testo completo
32
Bo, N. "Eva Bernhardt — Changing Family Ties, Women's Position and Low Fertility". Population Vol. 44, n. 2 (1 febbraio 1989): 454–55. http://dx.doi.org/10.3917/popu.p1989.44n2.0455.
Testo completo
33
Jennings, Julia A., Allison R. Sullivan e J. David Hacker. "Intergenerational Transmission of Reproductive Behavior during the Demographic Transition". Journal of Interdisciplinary History 42, n. 4 (febbraio 2012): 543–69. http://dx.doi.org/10.1162/jinh_a_00304.
Testo completoAbstract (sommario):
New evidence from the Utah Population Database (updp) reveals that at the onset of the fertility transition, reproductive behavior was transmitted across generations—between women and their mothers, as well as between women and their husbands' family of origin. Age at marriage, age at last birth, and the number of children ever born are positively correlated in the data, most strongly among first-born daughters and among cohorts born later in the fertility transition. Intergenerational ties, including the presence of mothers and mothers-in-law, influenced the hazard of progressing to a next birth. The findings suggest that the practice of parity-dependent marital fertility control and inter-birth spacing behavior derived, in part, from the previous generation and that the potential for mothers and mothers-in-law to help in the rearing of children encouraged higher marital fertility.
34
Tsuya, Noriko. "Social and Economic Factors of Japan's Below-Replacement Fertility in Comparative Perspective". TRENDS IN THE SCIENCES 9, n. 7 (2004): 14–18. http://dx.doi.org/10.5363/tits.9.7_14.
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35
IWAMOTO, Yasushi. "Issues in Financing Social Security Costs in Ageing Society with Low Fertility". TRENDS IN THE SCIENCES 18, n. 1 (2013): 1_63–1_66. http://dx.doi.org/10.5363/tits.18.1_63.
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36
FUNABASHI, Keiko. "Issues in Socialization of Care Adapting to Aging Society with Declining Fertility". TRENDS IN THE SCIENCES 21, n. 12 (2016): 12_10–12_17. http://dx.doi.org/10.5363/tits.21.12_10.
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37
Pande, Amrita. "Global reproductive inequalities, neo-eugenics and commercial surrogacy in India". Current Sociology 64, n. 2 (4 dicembre 2015): 244–58. http://dx.doi.org/10.1177/0011392115614786.
Testo completoAbstract (sommario):
India’s commercial surrogacy market literally produces humans and human relationships while sustaining global racial reproductive hierarchies. The post-colonial state’s aggressive anti-natalism echoes the broader global population control agenda framing the global South’s high fertility rates as a ‘global danger’ to be controlled at whatever cost, but is at odds with the neoliberal imperative of unrestrained global fertility tourism. Womb mothers (surrogates) subvert hegemonic discourses by taking control over their bodies and using their fertile bodies ‘productively’. But in controlling their own reproduction through decisions about fertility, sterilization and abortion in order to (re)produce children of higher classes and privileged nations, they ultimately conform to global neo-eugenic imperatives to reduce the fertility of lower class women in the global South. Surrogates creatively construct cross-class, -caste, -religion, -race and -nation kinship ties with the baby and the intended mother, disrupting hegemonic genetic and patriarchal bases of kinship, but fundamentally reify structural inequality.
38
South, David B. "Use of magnesium in bareroot pine nurseries". REFORESTA, n. 13 (15 luglio 2022): 7–44. http://dx.doi.org/10.21750/refor.13.02.95.
Testo completoAbstract (sommario):
Pines with visible magnesium (Mg) deficiencies (i.e. yellow tips on needles) occur in bareroot nurseries throughout the world. The occurrence of “yellow-tips” is rare when soil pH is above 6.5 but they have occurred on sands (pH < 6.0) with less than 25 μg g-1 Mg. If yellow-tips occur in the summer, the foliar content of yellow tips is usually less than 1,000 μg g-1 Mg. Some nurseries do not produce “yellow-tip” seedlings when irrigation water contains sufficient Mg. Factors favoring a deficiency include low soil pH, high calcium in irrigation water, frequent fertilization with nitrogen and potassium and applying too much gypsum. Although various Mg fertilizers are available, many nursery managers apply dolomite or potassium-magnesium sulfate before sowing seeds and a few also apply magnesium sulfate in July or August. Soil tests are used to determine when to fertilize before sowing and foliage tests determine when to apply Mg to green seedlings. Nursery managers who follow S.A. Wilde’s forest-based soil recommendations may apply magnesium sulfate to green seedlings even when seedbeds contain adequate levels of Mg. When deficiency is minor, chlorosis on needle tips usually disappears before the fall equinox and, when applied at this time, Mg fertilizers have little or no effect on height growth. This paper reviews some of the past and current uses of Mg in bareroot nurseries and highlights a need for additional research.
39
Martinez, E. A., J. M. Vazquez, I. Parrilla, C. Cuello, M. A. Gil, J. A. Tornel, J. Roca e J. L. Vazquez. "19 LOW-DOSE DEEP INTRAUTERINE INSEMINATION IN SOWS UNDER CONDITIONS: INCIDENCE OF UNILATERAL FERTILIZATIONS". Reproduction, Fertility and Development 17, n. 2 (2005): 159. http://dx.doi.org/10.1071/rdv17n2ab19.
Testo completoAbstract (sommario):
A new procedure for nonsurgical deep intrauterine insemination (DUI) in non-sedated sows has recently been reported (Martinez et al. 2002 Reproduction 123, 163–170). In comparison to traditional artificial insemination (AI), using this procedure, a 20-fold reduction in the number of spermatozoa inseminated can be used without a decrease in fertility when hormonally treated post-weaning estrous sows are used. The aim of the present study was to evaluate the effectiveness of DUI under field conditions. In Experiment 1, crossbred sows (2–6 parity) were weaned at 20.75 ± 0.06 days. Estrous detection was performed once per day, beginning 3 days after weaning. Sows with a weaning to estrus interval of 4–5 days were selected to be inseminated. A total of 190 sows were inseminated at 12, 24, and 36 h after onset of estrus using one of the following two regimes: (1) DUI with 150 × 106 fresh spermatozoa in 5 mL of BTS (n = 95) and (2) Traditional AI with 3 × 109 fresh spermatozoa in 100 mL of BTS (n = 95) prepared from the same semen samples used for the DUI group. Farrowing rates (FR) and litter sizes (LTS; mean ± SEM) from both groups were compared using chi-squared test and ANOVA, respectively. There was no significant difference in the FR between groups (83.2 and 86.3% for DUI and AI groups, respectively). However, a decrease (P < 0.001) in the LTS was observed in sows inseminated by the DUI procedure (9.8 ± 0.29 and 10.9 ± 0.17, respectively). In Experiment 2, seventy one natural post-weaning estrus sows were used. Fifty-five sows were DUI inseminated three times with 150 (n = 17), 300 (n = 19), or 600 (n = 19) × 106 spermatozoa in 5, 10, or 20 mL of BTS, respectively. The remaining sows (n = 16) were traditionally inseminated. On Day 6 after estrus, sows were subjected to laparotomy and the tips of both uterine horns were flushed in order to evaluate pregnancy rate (PR: percentage of sows with at least 4 viable embryos) and fertilization rate (ratio of viable embryos to the total number of embryos and oocytes). PR was similar in all the groups, ranging from 84.2% (DUI 300 × 106 spermatozoa group) to 94.7% (DUI 600 × 106 spermatozoa group). Fertilization rate and the percentage of bilateral fertilization after DUI with 600 × 106 spermatozoa did not differ from those of the AI group (97.8 and 100% vs. 98.4 and 100%, respectively), but a significant decrease in both parameters (P < 0.05; chi-square test) was observed in sows inseminated with 300 (94.3 and 87.5%) or 150 (84.4 and 66.7%) × 106 spermatozoa. In conclusion, DUI with 150 × 106 spermatozoa offers similar FR but a lower LTS in sows with natural estrus in comparison with those parameters obtained when traditional AI is used. The lower litter size could be related to the low percentage of bilateral fertilization observed in that group. This work was supported by CDTI 020003.
40
Kavas, Serap, e Julie Jong. "Exploring the Mechanisms Through Which Social Ties Affect Fertility Decisions in Turkey". Journal of Marriage and Family 82, n. 4 (4 marzo 2020): 1250–69. http://dx.doi.org/10.1111/jomf.12668.
Testo completo
41
Yang, Mengjie. "The Female Anxiety Embodied in the Gothic Novel: Frankenstein". Journal of Education, Humanities and Social Sciences 15 (13 giugno 2023): 187–89. http://dx.doi.org/10.54097/ehss.v15i.9248.
Testo completoAbstract (sommario):
Female Gothic Fiction - Frankenstein is a revealing tale of female anxiety and terror that not only has a distinctly Gothic sublime appeal, but also boldly reflects Shelley's female anxiety brought on by authorship and family ties through the absence of female discourse, the metaphor of the monster as a woman, and the appropriation of female fertility by men.
42
Siringoringo, Harris Herman, e Chairil Anwar Siregar. "PENGARUH APLIKASI ARANG TERHADAP PERTUMBUHAN AWAL Michelia Montana Blume DAN PERUBAHAN SIFAT KESUBURAN TANAH PADA TIPE TANAH LATOSOL". Jurnal Penelitian Hutan dan Konservasi Alam 8, n. 1 (2011): 65–85. http://dx.doi.org/10.20886/jphka.2011.8.1.65-85.
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43
Irwin, Sarah. "‘Reproductive Regimes: Changing Relations of Inter-dependence and Fertility Change’". Sociological Research Online 5, n. 1 (maggio 2000): 85–98. http://dx.doi.org/10.5153/sro.445.
Testo completoAbstract (sommario):
Within sociological and demographic research many argue that recent demographic transformations can be explained, at least in part, by a growth in individualism. Such approaches, with their emphasis on growing individual autonomy, offer a model of human action in which the social recedes from analysis. This paper offers an alternative framework for analysing processes shaping demographic change, taking as a particular focus aspects of changing patterns of fertility in the UK. Interpretations of the fertility decline at the turn of the twentieth century emphasise the importance of changing patterns of inter-dependence across generations and between women and men. It is argued that in parallel, although to a lesser degree, recent decades have manifest a change in the social positioning of these groups. Change in the reproductive regime is offered as a concept for denoting this restructuring of inter-dependencies. We are witnessing a reconfiguration of social ties and not their displacement. It is as an integral part of such changes that developments in fertility are best interrogated.
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Sztaudynger, Jan Jacek. "Family And Economic Growth In Poland". Folia Oeconomica Stetinensia 14, n. 2 (1 dicembre 2014): 53–75. http://dx.doi.org/10.1515/foli-2015-0009.
Testo completoAbstract (sommario):
Abstract In the article we test the hypothesis that the weakening of family ties, as measured by the reduction in the number of marriages, a cascade of divorces and the decrease in the fertility rate, has brought about an economic slowdown in Poland. We also suppose that the economic growth and increased standard of living influence the increasing number of marriages, the fertility rate, and results in a decreasing number of divorces. We verify these hypotheses using an econometric model of economic growth with the family social capital. The model consists of seven stochastic equations and exhibits the feedback between GDP, labour productivity and some variables representing social capital, in particular the marriage disintegration ratio. We try to verify the hypothesis of the existence of an optimal divorce rate for economic growth.
45
CAN, Ali, e İsa YILMAZ. "Iğdır Şartlarında Yetiştirilen Halep Keçilerinin Süt Verimi, Döl Verimi, Meme Özellikleri ve Çiğ Süt Somatik Hücre Sayısı". Uluslararası Tarım ve Yaban Hayatı Bilimleri Dergisi 8, n. 2 (22 agosto 2022): 358–67. http://dx.doi.org/10.24180/ijaws.1090613.
Testo completoAbstract (sommario):
Bu çalışmanın amacı Halep keçilerinde somatik hücre sayısı (SHS), meme özellikleri ve bazı verim özelliklerinin belirlenmesidir. Bu çalışma, Türkiye'nin Iğdır iline ilk kez 2013 yılında getirilen ve özel bir işletmede yetiştirilen Halep keçilerinde yürütülmüştür. Çalışmada 2019 yılında 62 baş keçide 620 adet süt örneğinde SHS, aylık süt verimi ve meme özellikleri ölçülmüştür. Çalışmada meme çevresi, meme genişliği, meme alt yüksekliği, meme üst yüksekliği, meme başı açısı, meme hacmi, meme başı çapı ve meme başı uzunluğuna ait ortalama değerler sırasıyla 41.83±0.13 cm, 13.07±0.04 cm, 30.57±0.14 cm, 51.01±0.15 cm, 38.02±0.13º, 1754.84±10.65 ml, 6.09±0.09 mm ve 5.44±0.06 cm olarak belirlenmiştir. Sürüde iki parçalı ve düz meme olarak iki meme tipi tespit edilmiştir. Çiğ sütlerde ortalama SHS ve logaritmik Log10SHS değerleri sırasıyla 503.120±40.020 hücre ml-1 ve 5.543±0.037 hücre ml-1 olarak bulunmuştur. Doğum şekli ve laktasyon sırasının SHS ve Log10SHS üzerindeki etkisi anlamlı bulunmuştur (p<0.01). Süt verimini etkileyen faktörlerden ortalama günlük süt verimi, laktasyon süresi ve laktasyon süt verimi sırasıyla 2,14±0,05 kg, 292,15±0,60 gün ve 626,23±12,94 kg olarak tespit edilmiştir. Ortalama günlük süt verimi üzerine laktasyon süresi ve mevsimin etkisi anlamlı bulunmuştur (p<0.01). Meme tipinin laktasyon uzunluğuna (p<0.05), laktasyon süresinin laktasyon süt verimi üzerine etkisi anlamlı (p<0.01) bulunmuştur. Sonuç olarak Halep keçilerinin Iğdır ili koşullarında başarılı bir şekilde yetiştirilebileceği sonucuna varılmıştır.
46
Budi Prasetya, Lalu Kekah. "KARAKTERISTIK SOSIODEMOGRAFI, PERILAKU FERTILITAS DAN PREFERENSI FERTILITAS PADA WANITA USIA SUBUR". Jurnal Keluarga Berencana 7, n. 2 (30 dicembre 2022): 85–96. http://dx.doi.org/10.37306/kkb.v7i2.128.
Testo completoAbstract (sommario):
Walaupun Angka Fertilitas Total Indonesia telah menunjukkan tren penurunan selama 5 tahun terakhir SDKI yaitu dari tahun 2012-2017, namun penting untuk mengetahui preferensi fertilitas dari wanita usia subur (WUS) usia 15-49 tahun untuk perencanaan kebijakan terkait penurunan fertilitas pada tahun-tahun mendatang. Penelitian ini bertujuan untuk mengetahui hubungan karakteristik sosiodemografi dan perilaku fertilitas terhadap preferensi fertilitas pada wanita usia subur usia 15-49 tahun berdasarkan Survei Demografi dan Kesehatan Indonesia (SDKI) 2017. Penelitian ini menggunakan data Survei Demografi dan Kesehatan Indonesia (SDKI) tahun 2017 dengan jenis kuesioner yang dipilih adalah kuesioner wanita usia subur (WUS) dengan umur wanita dari 15 sampai dengan 49 tahun. Dalam penelitian ini akan dilakukan tabulasi silang dengan kombinasi chi-square, analisis bivariat dan regresi logistik. Berdasarkan hasil regresi logistik biner, usia responden saat ini, tipe tempat tinggal responden, pendidikan tertinggi responden, penggunaan kontrasepsi dan keinginan menggunakan kontrasepsi, penggunaan kontrasepsi saat ini berdasarkan metode dan total anak yang pernah dilahirkan (0-2 anak atau 2 anak lebih) berhubungan signifikan terhadap preferensi fertilitas WUS usia 15-49 tahun di Indonesia berdasarkan data SDKI 2017.
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Korenevskiy, S. N., e A. I. Yudin. "Two Rare Finds from the Maikop-Novosvobodnaya Sites in the Black Sea Region". Archaeology, Ethnology & Anthropology of Eurasia 48, n. 2 (26 giugno 2020): 29–37. http://dx.doi.org/10.17746/1563-0110.2020.48.2.029-037.
Testo completoAbstract (sommario):
We describe two unique fi nds from the 2018 excavations at the Maikop-Novosvobodnaya settlements of Pervomayskoye and Chekon in the Krasnodar Territory: a pendant and a clay figurine of a goddess, respectively. The parquet ornament on the pendant is paralleled by that on a cylindrical pendant-seal from Chekon. Such ornamentation is frequent on Near Eastern button-seals, and occurs on Anatolian artifacts symbolizing the fertility goddess and the magic related to her. Therefore, the Pervomayskoye and Chekon pendants, too, may be associated with the fertility cult. The figurine of a goddess from Chekon can be attributed to the Serezlievka type of the Late Tripolye culture. It testifies to ties between Maikop and Tripolye in the late 4th to early 3rd millennia BC. Both finds shed light on the vastly diverse beliefs of the Maikop-Novosvobodnaya tribes at the middle and late stage of that culture.
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Malinovskaya, I. M., e N. A. Tkachenko. "The system of diagnostic indicators of effective fertility of gray forest soil". Interdepartmental thematic scientific collection "Agriculture" 1, n. 92 (22 giugno 2017): 36–43. http://dx.doi.org/10.31073/zem.92.36-43.
Testo completoAbstract (sommario):
The analysis of the significance of correlations ties between the yield of winter wheat (2012), soybean (2013), spring wheat (2014), buckwheat (2015) and the under indicators of quantity of microorganisms of some of ecology-trophic, functional and taxonomic groups, their of physiological and biochemical activity, the indicators of intensity processes of mineralization, the phytotoxicity, the stability of microbial communities for the four of seasons of vegetations it was conducted. It is established that the effective fertility of grey forest soils significantly (r = 0,666-0,999) positively correlated with the quantity of ammonificators; with immobilization of mineral nitrogen, oligonitrophillouses, cellulose decompose; with of autochthonous microorganisms; with total number of microorganisms (r = 0,684); with total biological activity (r = 0,764); with probability of forming of colonies denitrification (PFC); with of pH of salt and pH of water; with capacity in soil of nitrogen, potassium, phosphorus, humus. The yield of agricultural crops negatively correlated significantly with the number melaninsyntezuvalnyh Micromycetes (r = - 0,665) and with their specific contents in the total number of micromycetes (r = - 0,673), with the indicators of phytotoxicity (r = - 0,648), with the hydrolytic acidity, with the total exchange acidity and content of mobile aluminium.Direct correlation of medium significance level (r = 0,333-0,665) is observed between the effective fertility of grey forest soils and a quantity denitrifications, pedotrofov, of polisaharidnay microorganisms, actinomycetes, micromycetes, mobilizers of mineral phosphates, acid-forming microorganisms, PFC nitrifiers, of autochthonous, of cellulose-decomposing bacteria, with humus mineralization activity (r = 0,564), the content of nitrate nitrogen and of ammonium nitrogen, the phosphorus degree of mobility. Feedback of medium level of significance observed between the yield and PFC olihotrofnosti, index of pedotrofnosti. The relationship between yield and coefficient of nitrogen mineralization by average multi-year data was insignificant (r = 0,090).
For the first time shown that an effective fertility of gray forest soils correlated with stability of microbial groupings, which is described of the quantity of significancy of correlation ties between their components.
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Fitriyani, Indri Hapsari, Fahrizal Hazra e Dewi Rosita. "ANALISIS KORELASI SIFAT BIOLOGI DAN KIMIA TANAH PADA BERBAGAI TIPE PENGGUNAAN LAHAN DI KABUPATEN BOGOR". Jurnal Tanah dan Sumberdaya Lahan 10, n. 1 (1 gennaio 2023): 119–23. http://dx.doi.org/10.21776/ub.jtsl.2023.010.1.13.
Testo completoAbstract (sommario):
Land use in Bogor Regency has diverse vegetation and different soil characteristics. Soil characteristics have an influence on land management. Improper land management has led to a decrease in microbial populations, biodiversity and a decline in soil quality and fertility. Soil fertility is produced by the interaction of the physical, chemical, and biological properties of the soil. This study aims to determine the correlation of soil biological and chemical properties in several different types of land use in Bogor Regency. Soil sampling was carried out using the purposive random sampling method with five replicates. Soil samples were taken at a depth of 0-20 cm by ±1 kg. The research site includes eight land uses namely bamboo gardens, sengon gardens, lamtorogung gardens, and dragon fruit orchards. The results of the analysis showed that the dragon fruit field had an acid pH with very high organic C and total N levels with the highest fungal population of 2.27 x 105 CFU g-1. Meanwhile, bamboo fields with an acid pH also have a medium organic C content and low total N with the lowest total fungi population of 0.37 x 105 CFU g-1. Azotobacter populations and respiration values had the highest correlation with the total P content of the soil. The correlation value of the total population of fungi was the highest, with a total N levels of 0.427.
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Williams, Kristi, e Brian Karl Finch. "Adverse Childhood Experiences, Early and Nonmarital Fertility, and Women’s Health at Midlife". Journal of Health and Social Behavior 60, n. 3 (settembre 2019): 309–25. http://dx.doi.org/10.1177/0022146519868842.
Testo completoAbstract (sommario):
Adverse childhood experiences (ACEs) have powerful consequences for health and well-being throughout the life course. We draw on evidence that exposure to ACEs shapes developmental processes central to emotional regulation, impulsivity, and the formation of secure intimate ties to posit that ACEs shape the timing and context of childbearing, which in turn partially mediate the well-established effect of ACEs on women’s later-life health. Analysis of 25 years of nationally representative panel data from the National Longitudinal Study of Youth (NLSY79; n = 3,893) indicates that adverse childhood experiences predict earlier age at first birth and greater odds of having a nonmarital first birth. Age and marital status at first birth partially mediate the effect of ACEs on women’s health at midlife. Implications for public health and family policy aimed at improving maternal and child well-being are discussed.