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Lopez, Ashley Karisa. "Power Plant, Plant-Based Nutrition Services| A Business Plan". Thesis, California State University, Long Beach, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10639050.
Pełny tekst źródłaToday, obesity has become the number one concern of kids and teens. About one in three Americans are overweight or obese. This in part is due to the consumption of highly commercialized and processed foods that lack the essential nutrients in maintaining a healthy weight in addition to normal cholesterol and blood pressure levels. Studies have shown that eating habits are learned early in life and are carried on throughout the rest of their lives. As children grow older into their adolescent years, they are more aware of their eating habits and have gained more autonomy in regards to food choices.
Plant-based foods have shown to drastically improve the overall health of individuals with high cholesterol, high blood pressure, and excess weight.
Power Plant is a facility that intends offer plant-based nutritional services in the form of informative lectures, interactive workshops, one-on-one nutritional guidance by appointment, with access to peer-mentors for additional support and guidance. Power Plant will dedicate their services to the Whittier Union high school district, surrounding community colleges, and universities in the Los Angeles County area.
Power Plant’s unique program design, physician referrals and the critical need of our generations to come, are all factors that will contribute to its success in the Los Angeles County community and for years to come.
Kering, Maru K. Blevins Dale G. "Manganese nutrition and photosynthesis in NAD-malic enzyme C-4 plants". Diss., Columbia, Mo. : University of Missouri--Columbia, 2008. http://hdl.handle.net/10355/7201.
Pełny tekst źródłaYe, Zhengqian. "Effect of low temperature on boron nutrition of oilseed rape and sunflower". Thesis, Ye, Zhengqian (2004) Effect of low temperature on boron nutrition of oilseed rape and sunflower. PhD thesis, Murdoch University, 2004. https://researchrepository.murdoch.edu.au/id/eprint/418/.
Pełny tekst źródłaYe, Zhengqian. "Effect of low temperature on boron nutrition of oilseed rape and sunflower". Murdoch University, 2004. http://wwwlib.murdoch.edu.au/adt/browse/view/adt-MU20060510.154332.
Pełny tekst źródłaMatlhoahela, Patience Tshegohatso. "Mineral nutrition of cultivated South African proteaceace". Thesis, Link to the online version, 2006. http://hdl.handle.net/10019/1106.
Pełny tekst źródłaMarazzi, Cristina. "Plant sulphur nutrition influencing host-plant selection and performance of insect herbivores /". Basel : [s.n.], 2003. http://edoc.unibas.ch/diss/DissB_7004.
Pełny tekst źródłaMohamed, Fatheya. "Mineral analysis and proximate composition of leaves of (Brassica oleracea var. acephala) in response to boron application in pot experiments". Thesis, Cape Peninsula University of Technology, 2018. http://hdl.handle.net/20.500.11838/2793.
Pełny tekst źródłaChoumollier (narrow-stem kale) (Brassica oleracea, L.) has been progressively used in recent years as a supplementary forage harvest in many countries with a temperate climate. Boron (B) and calcium (Ca) are the two most important elements for supporting plant structure and function of plasma membranes. Boron nutrition is vital for obtaining high quality yields in vegetables. The main objective of this study was to evaluate the extent to which boric acid concentration can affect growth parameters (plant height, leaf numbers, chlorophyll levels, and leaf size) of Brassica olereacea var. acephala at different stages of growth and development. Treatment comprised of four concentrations of boron (0.3 mg/kg, 0.4 mg/kg, 0.5 mg/kg and 0.6 mg/kg). Yield and physiological growth responses were measured during the course of the study to ascertain effectiveness and influence of boron treatments on the test crops. Leaves of B. oleracea were harvested at weekly intervals (W1, W2, W3, W4 and W5) after each treatment regimen for approximate basic mineral analysis and composition. Soil pH did not vary much among the various orchard blocks tested, regardless of soil depth. Exchangeable cations Na+ and K+ levels did not vary significantly, but Ca2+ and Mg2+ levels fluctuated considerably among orchards analyzed. The Control Orchard exhibited a higher P content than the other orchards. Ca, Mg, Cu and B levels did not vary significantly among the orchards, but Na, Fe and Zn levels were markedly raised in the Orchard treated with 0.3 mg/kg boron) relative to the Control Orchard. Chlorophyll fluorescence was significantly dependent on the treatment dose of boron as compared to control. Chlorophyll fluorescence also increased significantly with the growth period, i.e., the duration following the initial treatment at all doses of boron. Boron at all did not significantly affect leaf count, leaf length and plant height. The work may add to the body of knowledge on the influence of boron on the physiological performance, mineral contents and proximate composition of leaves of the species. Furthermore, the findings may have important applications in achieving high quality yields in vegetable crops.
Tancock, Nigel Philip. "The influence of complexation on micronutrient uptake by plants and on plant growth". Thesis, University of Leicester, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.341363.
Pełny tekst źródłaLees, Robert. "Photosynthesis and nutrition in in vitro plants". Thesis, University of Central Lancashire, 1993. http://clok.uclan.ac.uk/20823/.
Pełny tekst źródłaStangoulis, James Constantine Roy. "Genotypic variation in oilseed rape to low boron nutrition and the mechanism of boron efficiency". Title page, contents and summary only, 1998. http://web4.library.adelaide.edu.au/theses/09PH/09phs7856.pdf.
Pełny tekst źródłaTew, Jason. "Humic and Fulvic Acids: Effects on Plant Nutrition and Growth". DigitalCommons@USU, 2005. https://digitalcommons.usu.edu/etd/6709.
Pełny tekst źródłaFrakes, Mitchell Laura Ann. "BORON NUTRITION OF BURLEY AND DARK TOBACCO". UKnowledge, 2014. http://uknowledge.uky.edu/pss_etds/51.
Pełny tekst źródłaLonergan, Paul Francis. "Genetic characterisation and QTL mapping of zinc nutrition in barley (Hordeum vulgare)". Title page, contents and abstract only, 2001. http://web4.library.adelaide.edu.au/theses/09PH/09phl847.pdf.
Pełny tekst źródłaStone, Bethany. "The effects of boron deficiency and aluminum toxicity on plant magnesium /". free to MU campus, to others for purchase, 2001. http://wwwlib.umi.com/cr/mo/fullcit?p3036861.
Pełny tekst źródłaBaylis, Mathew. "The role of nutrition in an ant - lycaenid - host plant interaction". Thesis, University of Oxford, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.235992.
Pełny tekst źródłaWan, Hon Chi Judy. "Interaction of earthworms and microorganisms on nutrient availability and crop growth". HKBU Institutional Repository, 2004. http://repository.hkbu.edu.hk/etd_ra/588.
Pełny tekst źródłaRossouw, Alex. "The marketability of small scale hydroponic systems for the horticultural industry in South Africa". Thesis, Cape Peninsula University of Technology, 2016. http://hdl.handle.net/20.500.11838/2539.
Pełny tekst źródłaHydroponics, i.e. plant cultivation in mineral-rich water is a synergy between plant, human, and machine. For decades the hydroponic garden has been offered on horticultural markets, and was repeatedly innovated to better meet consumer horticultural needs. Currently, platform convergences with electronic control systems can possibly enable more efficient products for direct consumer hydroponic cultivation. This means that, like many appliances in the home; hydroponic plant cultivation can become somewhat automated. Marketing and product innovation can help calibrate optimal New Product Development NPD of hydroponic gardens for people. The literature review grasps how consumers are subjected to a changing environment together with changing technology such as hydroponics, plant nutrition, and even garden automation. Market research frameworks namely Morphological Analysis (MA) and Conjoint Analysis (CA) are the tools deployed here for profiling and prioritising these products for horticultural consumers. Firstly, a qualitative analysis identifies conceptual sets for structures, inputs, and controls, which all harmonise into new intersections cultivation, hydroponics, and automation and the e-garden concepts. The MA next produces, and organises secondary data into constraints for the CA. Here, general hydroponic cultivation is first decomposed into all its many component parts which collectively describe the whole, where these parts are then classed along various attributes namely: garden plane xA, automation xB, performance xC, organics xD, and price xE So garden plane is composed of level and vertical gardens, garden automation is composed of manual and automatic gardens, garden performance is composed of casual and high-performance gardens, garden organics is composed of non-organic and organic gardens, and garden price although quantitative is simply composed of R2500 and R5000. These classes of attributed data can now become treated as categorical factors using indicator or dummy variables. Secondly, the CA determines how these attributes are most preferred by horticultural consumers at garden centre clusters. This involves measuring respondent preferences levels, to compute the part-worth utility for each attribute found in the MA. Factors such as garden organics, price, and automation hold adjusted alpha significance. Mainly, garden organics contributed to response effects, while price has negative slope and is second, while automation comes third. A combination of garden automation and organics is found to optimise consumer utility for Hydroponic Garden(s) HG.This research illuminates how horticultural consumers may prefer various HG, by understanding HG and how they can better benefit these people.
Mariot, E. J. "The nutritional ecology of Lupinus albus L. with special reference to phosphorus". Thesis, University of Oxford, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.370288.
Pełny tekst źródłaTariq, Mohammad. "Effect of boron supply on the availability of nutrients in soil and uptake by radish (Raphanus sativus L.)". Thesis, University of Reading, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.363708.
Pełny tekst źródłaMuthaukrishnan, L. "Effect of site of infection on host plant growth and metabolism". Thesis, University of Oxford, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.379917.
Pełny tekst źródłaLee, Ching-pong, i 李靖邦. "A study of peer collaboration in developing conceptual understanding of plant nutrition". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1999. http://hub.hku.hk/bib/B31961368.
Pełny tekst źródłaChing-pong, Lee. "A study of peer collaboration in developing conceptual understanding of plant nutrition". Hong Kong : University of Hong Kong, 1999. http://sunzi.lib.hku.hk/hkuto/record.jsp?B2130421X.
Pełny tekst źródłaYoshida, Hiroshi. "Fungal response to plant sugars: nutrition, metabolic state changes, and differentiation switching". Kyoto University, 2019. http://hdl.handle.net/2433/242714.
Pełny tekst źródła0048
新制・課程博士
博士(農学)
甲第21837号
農博第2350号
新制||農||1069(附属図書館)
学位論文||H31||N5209(農学部図書室)
京都大学大学院農学研究科地域環境科学専攻
(主査)教授 田中 千尋, 教授 本田 与一, 准教授 刑部 正博
学位規則第4条第1項該当
Moorby, H. "Environmental conditions affecting acid-base changes around plant roots". Thesis, University of Oxford, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.375279.
Pełny tekst źródłaWang, Anita Wen Tao. "Loss of lysine in plant foods". Thesis, The University of Sydney, 2004. https://hdl.handle.net/2123/27713.
Pełny tekst źródłaIason, G. R. "The biology of feeding and nutrition of mammalian herbivores : plant and animal processes". Thesis, University of Aberdeen, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.592601.
Pełny tekst źródłaMonakisi, Charlotte. "N₂ fixation, plant mineral nutrition and C metabolites in cowpea/maize cropping systems". Bachelor's thesis, University of Cape Town, 2002. http://hdl.handle.net/11427/25932.
Pełny tekst źródłaTushani, Samira Abdul-Majid. "Role of root phosphatases in the phosphorus nutrition of Carex flacca schreber". Thesis, University of Nottingham, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.267818.
Pełny tekst źródłaSchalau, Jeff W. "Laboratories Conducting Soil, Plant, Feed, or Water Testing". College of Agriculture, University of Arizona (Tucson, AZ), 2016. http://hdl.handle.net/10150/625536.
Pełny tekst źródłaMorris, Michael Roger. "The contribution of spawning pacific-salmon to nitrogen fertility and vegetation nutrition during riparian primary succession on an expansive floodplain of a large river". Diss., [Missoula, Mont.] : The University of Montana, 2008. http://etd.lib.umt.edu/theses/available/etd-09302008-151352/.
Pełny tekst źródłaLi, Maolin. "Adsorption characteristics and dynamics of soil organic phosphorus and its significance for plant nutrition /". Beuren ; Stuttgart : Grauer, 2001. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=009665345&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
Pełny tekst źródłaLiu, Jiping. "Characterization and molecular cloning of sos3: A gene important for salt tolerance and potassium nutrition in higher plants". Diss., The University of Arizona, 1999. http://hdl.handle.net/10150/283921.
Pełny tekst źródłaNengas, Ioannis. "Evaluation of animal and plant by-products as constituents in diets for seabream Sparus aurata L". Thesis, University of Plymouth, 1991. http://hdl.handle.net/10026.1/2406.
Pełny tekst źródłaLoma, Mercado Karem Khaterine. "The Nutritional Characterization of the Carob Tree in the Department of Cochabamba". BYU ScholarsArchive, 1997. https://scholarsarchive.byu.edu/etd/5385.
Pełny tekst źródłaIngarfield, Patricia Jean. "Effect of water stress and arbuscular mycorrhiza on the plant growth and antioxidant potential of Pelargonium reniforme Curtis and Pelargonium sidoides DC". Thesis, Cape Peninsula University of Technology, 2018. http://hdl.handle.net/20.500.11838/2794.
Pełny tekst źródłaPelargoniums have been studied extensively for their medicinal properties. P. reniforme and P. sidoides in particular are proven to possess antimicrobial, antifungal and antibiotic abilities due to their high antioxidant potential from compounds isolated from their tuberous roots. These plants have now been added to the medicine trade market and this is now causing concern for conservationists and they are generally harvested from the wild populations. This study evaluated the effect of water stress alone and in conjunction with arbuscular mycorrhiza on two species of Pelargoniums grown in a soilless medium. The experiment consisted of five different watering regimes which were applied to one hundred plants of each species without inoculation with arbuscular mycorrhiza and to one hundred plants of each species in conjunction with inoculation with AM. All the plants in the experiment were fed with a half-strength, standard Hoagland nutrient solution at varying rates viz. once daily to pot capacity, every three days to pot capacity, every six days to pot capacity, every twelve days to pot capacity and every twenty-four days to pot capacity. The objectives of the study were to measure the nutrient uptake, SPAD-502 levels (chlorophyll production) and metabolite (phenolics) formation of both species, grown under various rates of irrigation and water stress, as well with or without the addition of arbuscular mycorrhiza at planting out. Each treatment consisted of 10 replicates. SPAD-502 levels were measured weekly using a hand held SPAD-502 meter. Determination of nutrient uptake of macronutrients N, K, P, Ca, Mg and Na and micronutrients Cu, Zn, Mn, Al and B were measured from dry plant material at the end of the experiment by Bemlab, 16 Van Der Berg Crescent, Gants Centre, Strand. Plant growth in terms of wet and dry shoot and root weight were measured after harvest. Determination of concentrations of secondary metabolites (phenolic compounds) were assayed and measured spectrophotometrically at the end of the experiment. The highest significant reading of wet shoot weight for P. reniforme was taken in treatments 1 and 2 with and without mycorrhiza i.e. WF1, WF1M, WF2 and WF2M, with the highest mean found in WF1 with no mycorrhiza. This indicates that under high irrigation AM plays no part in plant growth, possibly due to leaching. More research is necessary in this regard. With regard to wet root weight, this was found to be not significant in any of the treatments, other than the longest roots being found in WF4. Measurements for dry root weight showed that WF1,2,3 and 5 were the most significant at P≤ 0.001 significance, with the highest weight found at treatment being WF3 and WF3M. The highest mean of shoot length of the plants was measured in treatment WF2 at moderate watering, but no statistical difference was found with water application and mycorrhiza addition. Nutrient uptake was increased in P. sidoides in all the different watering levels in the experiment except in the uptake of Mg. AM inoculation showed an increase in the uptake of Ca, while absorption of N occurred at higher water availability. K uptake was enhanced by the addition of AM in high water availability and K utilisation decreased as water stress increased. Medium to low watering resulted in higher leaf content in P. sidoides while the interaction between water availability and AM inoculation increased chlorophyll production towards the end of the experiment.
Ankrom, Katharine Elizabeth. "Identification of a new nematode species in Ohio and soil factor effects on plant nutrition of soybean". The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1468842700.
Pełny tekst źródłaLindhorst, Kathleen. "Antioxidant activity of phenolic fraction of plant products ingested by the Maasai". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0006/MQ44206.pdf.
Pełny tekst źródłaLiu, Juhong. "Cobalt : physiological effects and uptake mechanisms in plants /". Title page, table of contents and summary only, 1998. http://web4.library.adelaide.edu.au/theses/09PH/09phl7835.pdf.
Pełny tekst źródłaAlloush, Ghiath Ahmad. "The mechanism of mobilization of iron from soil minerals in the rhizosphere of Cicer arietinum L". Thesis, University of Leeds, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.277495.
Pełny tekst źródłaZeitouny, Joelle. "Wild edible plant consumption and age-related cataracts in a rural Lebanese elderly population: a case control study". Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=19235.
Pełny tekst źródłaLe régime Méditerranéen est caractérisé par une diversité considérable et une consommation élevée de plantes vertes sauvages, qui constituent d'excellentes sources d'antioxydants, y compris la lutéine et zéaxanthine. Ces-derniers sont les seuls caroténoïdes présents dans la lentille humaine et des études observationnelles et interventionnelles suggèrent qu'ils pourraient protéger contre la cataracte liée à l'âge. Pour mieux comprendre le rôle de la diversité alimentaire en général (et de la lutéine et zéaxanthine en particulier) dans la prévention de la cataracte liée à l'âge et les déterminants de la consommation de plantes vertes sauvages, des données socio-économiques et alimentaires ont été collectées de cent cas et cent témoins sélectionnés arbitrairement de Hermel, une région rurale pauvre et traditionnelle libanaise. Les résultats ont montré que la diversité alimentaire et les antioxydants (y compris mais non limité à la lutéine et zéaxanthine) sont inversement reliés à la cataracte liée à l'âge et que les plantes vertes sauvages sembleraient contribuer substantiellement à la protection contre la cataracte liée à l'âge en optimisant l'apport de nutriments et d'antioxydants, particulièrement chez les personnes ayant un statut socio-économique peu élevé.
Orsini, Elena. "Understanding molecular and physiological aspects of plant mineral nutrition : strategies for phosphorus and sulfur uptake /". Zürich : ETH, 2008. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=17608.
Pełny tekst źródłaRein, William Henry. "Stock plant nutrition and stem cutting water relations during propagation of four woody nursery crops". Thesis, Virginia Tech, 1990. http://hdl.handle.net/10919/41616.
Pełny tekst źródłaMaster of Science
Molteno, Steve. "The characterization of Rooibos tea soils and their effects on nitrogen nutrition of the plant". Bachelor's thesis, University of Cape Town, 1995. http://hdl.handle.net/11427/26686.
Pełny tekst źródłaAlzaghibi, Mohammed Abdullah. "Instructional design : development, implementation and evaluation of a teaching sequence about plant nutrition in Saudi". Thesis, University of Leeds, 2010. http://etheses.whiterose.ac.uk/1084/.
Pełny tekst źródłaSatija, Ambika. "Plant-Based Diets and Risk of Type 2 Diabetes and Coronary Heart Disease". Thesis, Harvard University, 2016. http://nrs.harvard.edu/urn-3:HUL.InstRepos:27201752.
Pełny tekst źródłaGrandi, Sonia. "Social and health implications of plant remedies of the James Bay Cree for symptoms of type 2 diabetes mellitus". Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=18294.
Pełny tekst źródłaÀ fin de développer une stratègie qui contreint à l’augmentation marqué du diabète du type 2 (DM2), l’épidemie affectant les peuples Indigènes du Canada, certaines analyses qualitatives et quantitatives ont été realisées. L’étude à demontré les habitudes de consommation des aliments traditionnels et médicinales ainsi que le potentiel antioxydants et cardioprotecteurs in vitro de huit plantes médicinales utliser pour le traitement des symptômes du DM2. Des entrevues avec 173 adultes venant de Mistissini a révélé une diminution de la consommation d’aliments et de médecines traditionnelles pour la génération plus jeune contrairement aux aînés (p<0.05). Quatre plantes ont révélé une activité comparable aux contrôles pour réduire les radicaux oxydants (p<0.05). Toutes les plantes ont démontré une protection contre les effets cytotoxiques du lipoprotéine à basse densité oxyder (ox-LDL) par rapport aux contrôles (p<0.05). Toutes les plantes ont empêché significativement la péroxydation des lipides comparés à ox-LDL (p<0.05). Des études cliniques et in vivo seront necessaires, mais ces plantes, néanmoins, contribuent positivement à une stratégie interventionel pour DM2.
Yong, Yi. "Antioxidant capacity and bioavailabilty of active constituents of «Larix laricina», a medicinal plant used to treat Type 2 Diabetes". Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=117185.
Pełny tekst źródłaLes espèces réactives de l'oxygène (ROS) jouent un rôle central dans la pathogenèse de diabète de type 2 (DT2) et contribuent à l'apparition de nombreuses complications diabétiques. Une plante médicinale indigène au Canada, Larix laricina est hautement respecté par les aînés et guérisseurs Cris de la région baie James, au Québec, qui l'utilisent pour traiter les symptômes liés au diabète depuis des générations. Plusieurs études antérieures démontrent la potentiel antidiabétique de L. laricina ainsi que ses puissantes propriétés antioxydantes et une richesse en composés polyphénoliques. Ici, nous explorons les activités antioxydantes comme un mécanisme sous-jacent des effets anti-diabétiques de L. laricina en faisant l'hypothèse que les polyphénols représentent les éléments les plus actifs, balayagant ROS. Cette thèse porte sur la capacité antioxydante et la biodisponibilité des principes actifs de L. laricina.En utilisant l'analyse de capacité d'absorption des radicaux oxygénés (ORAC), le potentiel antioxydant des extraits et des composés isolés a été évalué et les antioxydants majeurs ont été identifiés. En servir des cultures monocouche de cellules Caco-2 comme modèle de l'absorption intestinale et la chromatographie liquide - spectrométrie de masse (ESI-LC-MS/MS) pour détecter et quantifier les métabolites, la perméabilité de constituants actifs ont été déterminés.L'extrait brut L. laricina possédait un potentiel antioxydant puissant in vitro (7.1 ± 0.3 équivalents Trolox (TE) μM /mg). On a ensuite poursuivi les actifs par la méthode dite de fractionnement guidé par épreuves les bioessais. Parmi les 16 fractions de l'extrait brut, la fraction 10 a montré la plus grande capacité antioxydante (21.8 ± 1.7 μM TE / mg). Parmi les composés isolés purs, la rhaponticin – un glycoside stilbène identifiés à partir de la fraction 10 – a montré l`activité antioxydante la plus forte (24.6 ± 1.1μM TE / mg). L'étude ultérieure de transport à travers les monocouches Caco-2 a démontré qu'aucun des composés identifiés ont été décelés dans les échantillons basolatérales après le traitement avec l'extrait brut. En monocouches traités par fraction 10 (60% rhaponticin), cependant, de petites quantités de rhaponticin ont été détectés dans des échantillons basolatéral. Les coefficients de perméabilité apparente (Papp) de rhaponticin étaient 1.86 × 10-8 cm / s (0 - 60 mn) et 1.46 × 10-9 cm / s (60 min - 120 min). Toutefois, les analyses ORAC avec les échantillons récoltées basolatérales indiquaient que l'activité antioxydantes ont augmenté avec le temps de manière légèrement et non-significativement plus accélérée si le côté apical a été traitée avec l'extrait brut ou rhaponticin par rapport au témoin.L. laricina possède un potentiel antioxydant très significative in vitro, en particulier sa composante la plus active, rhaponticin. Cependant, rhaponticin et d'autres constituants actifs semblent posséder une faible perméabilité dans le modèle Caco-2 monocouche cellulaire. Plus d'études sont nécessaires pour élucider les mécanismes sous-jacents régissant l'absorption des polyphénols dont rhaponticin de L. laricina.
Thomas, C. L. "High throughput phenotyping of root and shoot traits in Brassica to identify novel genetic loci for improved crop nutrition". Thesis, University of Nottingham, 2017. http://eprints.nottingham.ac.uk/43440/.
Pełny tekst źródłaAdes, Dennis Raymond. "The role of iron nutrition in regulating patterns of photosynthesis and nitrogen metabolism in the green alga Scenedesmus quadricauda". PDXScholar, 1987. https://pdxscholar.library.pdx.edu/open_access_etds/3649.
Pełny tekst źródłaCruz, David Ricardo Jimenez. "Influence of soils, nutrition, and water relations upon charcoal rot disease processes in Kansas". Thesis, Kansas State University, 2011. http://hdl.handle.net/2097/10747.
Pełny tekst źródłaDepartment of Plant Pathology
Christopher R. Little
Christopher R. Little
Charcoal rot, caused by Macrophomina phaseolina, is the most important soybean disease in Kansas. Several strategies have been recommended to control this disease including crop rotation, lower plant densities, biological control, plant resistance and tolerance, and fungicide application. However, those techniques have not been completely effective and the information concerning soil texture, irrigation and micronutrient fertility (particularly manganese) upon charcoal rot disease severity and the pathogen population is limited. The objective of this study was to determine key factors that affect the biology of M. phaseolina and charcoal rot processes under laboratory, greenhouse and field conditions. M. phaseolina microsclerotia were produced from PDA pure isolate and infested Japanese millet in the laboratory and characterized by different techniques such as serial dilutions in semi selective media with the aim to produce quality inoculum to reliably infect soybean seedling roots under greenhouse conditions; production of inoculum by infesting Japanese millet was the most efficient method. Root colonization and root infection of soybean seedlings was assessed through the use of M. phaseolina inoculum under controlled conditions in the greenhouse. Root infection by M. phaseolina and microsclerotia longevity in soil is determined by environmental factors such as soil moisture content, soil texture and source of inoculum. The objective of the greenhouse study was to determine the impact of these variables on seedling root infection at the V1 and V2 development stages. Artificial soils with different textures were infested; M. phaseolina microsclerotia and soybean seedlings were exposed to different soil moisture contents including pot saturation, pot (field) capacity, and permanent wilting point. Soil populations and levels of root colonization for the stages were assessed by estimating CFUs and root length. Results indicate that soil texture has a significant impact upon root morphology and root length. Root populations of M. phaseolina were significantly higher in sandy soil textures and lower in the fine-textured soils, suggesting an impact of soil water holding capacity in the root infection process. The effect of water stress on seedling root colonization by M. phaseolina indicates that early infection may be more important than previously thought. A field study was also conducted to determine the effect of the aforementioned variables in a 2-year field experiment conducted at two Kansas locations. Pathogen colonization was iii assessed by measuring colony-forming units (CFUs) from ground root tissue at R2-R4 (post-flowering/early pod development) and R8 (maturity) stages. Soil populations (pre-planting and post-harvest) of M. phaseolina, yield parameters, and plant characteristics were obtained. Results indicated that there are complex relationships between soil physiochemical properties (pH, NPK content, exchangeable cations, and organic matter) and soil texture (sand, soil, and clay composition), which may mitigate disease severity and pathogen levels in host tissue. Results also indicated that in natural M. phaseolina-infested soils, cropping history and soil texture play an important role in charcoal rot processes and influence the levels of pathogen soil populations, root colonization at maturity and, more importantly, soybean yield.