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Go, Eun Byul. "Seeds". Kent State University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=kent1398095576.
Pełny tekst źródłaHongu, Nobuko, i Alexandra M. Franklin. "Chia Seeds". College of Agriculture, University of Arizona (Tucson, AZ), 2016. http://hdl.handle.net/10150/625408.
Pełny tekst źródłaChia seeds are a popular food lately, which people have deemed as a superfood. Chia seeds are rich source of many vitamins and minerals as well as omega-3 fatty acids and fiber. This article explores the history of chia seeds, the nutritional benefits, as well as illustrates some ways to include this food into your diet.
Sykes, Geoffrey. "Temporal and environmental influences on seed protein accumulation in soybean seeds". Thesis, Federation University Australia, 1991. http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/164827.
Pełny tekst źródłaSuntaranond, Suphap. "Processes influencing deterioration in stored seeds". Title page, contents and summary only, 1993. http://web4.library.adelaide.edu.au/theses/09PH/09phs958.pdf.
Pełny tekst źródłaClancy, Stephanie. "Seeds for change". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/MQ63496.pdf.
Pełny tekst źródłaGalup, Maria Cecilia. "Seeds| Sembrando futuros". Thesis, The University of Arizona, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10154360.
Pełny tekst źródła“Somos semillas” — we are seeds is a slogan, a sentiment, and a belief that emerges and circulates in a myriad of spaces from Ferguson Black Lives Matter protests advocating for racial justice in the United States, to struggles against state violence in Ayotzinapa, Mexico, to climate justice and food sovereignty movements in Latin America. Seeds are both symbolic and material embodiments of futurity. In this dissertation, I examine the discourses around seeds, particularly genetically modified seeds (GM), and the role of biotechnology as our only purveyor of futurity. In “Seeds,” I examine the dominant discourses around GM seeds produced by pro-GM actors such as agro-industries including Monsanto and Syngenta, and USDAID programs such as Feed the Future. These discourses are constructed around social and environmental looming crises that include hunger and overpopulation, loss of biodiversity and climate change. In “Seeds,” thinking through the decolonial option, I challenge the single Western narrative that presents GM seeds and crops as the only path to solve these crises and for humanity to have a utopian future. “Seeds” takes on a ‘studying up’ approach that as scholar Laura Nader argues investigates those in power instead of those that are being oppressed. “Seeds” then works alongside other academic, indigenous, campesin@s, and farmer intellectuals and activists to elucidate a number of ways that people around the world are engaging with such crises and are building different paths to decolonial futures.
Galup, Maria Cecilia I., i Maria Cecilia I. Galup. "Seeds: Sembrando Futuros". Diss., The University of Arizona, 2016. http://hdl.handle.net/10150/620667.
Pełny tekst źródłaBalandra, Ruiz Allison Nicole, León Andrea Lizbeth Canales, García Víctor Deneil Medina, Aguilar Franklin Edwin Ordoñez i Vega Mercia Maria Ramos. "Seven seeds nuggets". Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2020. http://hdl.handle.net/10757/655743.
Pełny tekst źródłaThis project was raised by a group of students belonging to the 10th cycle of the International Business and Administration career. The knowledge acquired throughout the career has allowed us to project this business model correctly and precisely, for which we will detail what has been worked on below. In the first place, the problem was identified where our users look for alternative foods that allow them to lead a healthy life and in turn provide them with nutrients and proteins so that they can comply with their daily activities. For these reasons, we create an ideal and alternative product that can be enjoyed at any time. Thus, our target audience is young people, athletes, vegans and vegetarians from the ages of 18 to 39 belonging to the NSE A and B of Modern Lima. Under this concept was born "Seven Seeds Nuggets", 100% natural nuggets based on 7 seeds, made with premium ingredients from our country, such as quinoa, kiwicha, cañihua, oats, black maca, chia and linseed, this product follows a process artisanal, being an option of snacks to be shared with other foods. Tradition and pride in our country is what our product represents, thanks to its wide variety of inputs and ideal texture, which make it a healthy and fresh option. To achieve all the aforementioned, we have developed an analysis, where the Marketing Plan, Operations Plan, Human Resources Plan, Social Responsibility Plan and Financial Plan are executed for the correct evaluation of the company and the viability of the project.
Trabajo de investigación
Amoda, Olu Moulton Marc. "Seeds of passage". Diss., Statesboro, Ga.: Georgia Southern University, 2009. http://www.georgiasouthern.edu/etd/archive/fall2009/olu_amoda/Amoda_Olu_200908_mfa.pdf.
Pełny tekst źródłaChang, Yu-Wei 1977. "Isolation and characterization of proteins from chickpea (Cicer arietinum L.) seeds". Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=115839.
Pełny tekst źródłaScott, Elizabeth. "The secret nature of seeds : science & seed improvement c.1520-1700". Thesis, University of East Anglia, 2016. https://ueaeprints.uea.ac.uk/59258/.
Pełny tekst źródłaKoela, Ernie Nathi. "‘Seeds of the Braced Bow’ (The Flower, the Seed and the Bee)". Master's thesis, Faculty of Humanities, 2019. http://hdl.handle.net/11427/31398.
Pełny tekst źródłaSeyedhosseini, S. H. "Ion implantation of seeds". Thesis, University of Salford, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358378.
Pełny tekst źródłaKoshawatana, Chutima. "Physiological, biochemical and chemical studies on desiccation tolerance primarily in developing wheat seeds". Title page, contents and summary only, 1996. http://web4.library.adelaide.edu.au/theses/09PH/09phk859.pdf.
Pełny tekst źródłaSekharan, Soja. "Aged soybean (Glycine max [L.] Merrill) seeds their physiology and vigor assessment /". Columbus, Ohio : Ohio State University, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1135809134.
Pełny tekst źródłaGorman, Ashley. "Understanding seed-soil adhesion by myxospermous seeds and their biophysical function in agroecosystems". Thesis, University of Dundee, 2019. https://discovery.dundee.ac.uk/en/studentTheses/33ec7318-88e9-4e39-9a31-c26a8b1a1638.
Pełny tekst źródłaChien, Yung-hsin. "SHELF LIFE EXTENSION OF SEED BUTTER MADE WITH SESAME, SUNFLOWER AND PUMPKIN SEEDS". The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1449235219.
Pełny tekst źródłaZanetti, Oliver Vivian. "Doing food security in practice : seeds, seed banking and preparations for the future". Thesis, Open University, 2013. http://oro.open.ac.uk/54706/.
Pełny tekst źródłaWu, Wei. "Spreading Seeds: Ai Weiwei's Sunflower Seeds and His Performative Personality Received in the West". Scholarship @ Claremont, 2017. http://scholarship.claremont.edu/scripps_theses/1046.
Pełny tekst źródłaHaigh, Anthony Mark. "Why do tomato seeds prime?: physiological investigations into the control of tomato seed germination and priming". Australia : Macquarie University, 1988. http://hdl.handle.net/1959.14/35668.
Pełny tekst źródłaBibliography: leaves 112-121.
General introduction to seed priming -- Water relations of tomato seed germination -- Water relations to tomato seeds during priming -- Water relations of germinating primed tomato seeds -- Histological study of tomato seed germination and priming -- Endosperm weakening during germination and priming of tomato seeds -- General discussion -- References.
It is the aim of this thesis to examine hypotheses regarding the prevention of radicle emergence during priming and of the enhancement of germination following priming. This work should identify the control sites in the processes of radicle emergence and their modification during priming. -- For the most part these hypotheses are underlain by an analysis of germination as a special case of plant cell expansion. A study of cell expansion requires an understanding of the water relations of the tissues involved. Therefore, the sequence of events during the germination of tomato seeds was first examined through a water relations study then the changes caused by priming were examined. -- The study of the water relations of germinating tomato seeds revealed that the seeds came into Ψ equilibrium with the imbibitional solution, whereas, the embryo was measured at much lower Ψ. There was no evidence of a lowering of embryo Ψπ nor of an increase in embryo Ψp prior to radicle emergence. The embryo Ψ measurements need to be interpreted with caution for they are ex situ measurements and thus do not directly measure these properties in the seed. It is unlikely that a large ΔΨ could be maintained within the seed during imbibition. Thus the existence of a large seed to embryo Ψp can be inferred from these measurements. The moisture release isotherm of the excised embryo confirmed this inference. The endosperm tissue enclosing the embryo was found to restrict the hydration level of the embryo prior to its emergence. As the embryo was capable of expansive growth prior to radicle emergence, it was concluded that the weakening of the endosperm controlled radicle emergence in tomato seeds. -- During priming the tomato seeds were in Ψ equilibrium with the priming solution, but the embryo was not. As the embryo was capable of growth after 2 days of the 6 day priming treatment, it was concluded that radicle emergence was prevented by the maintenance of the endosperm restraint. Germinating primed seeds did not display a marked plateau during imbibition. Both seed and embryo water contents were higher than those of non-primed seeds. However, embryo Ψ and Ψπ were lower than those of embryos from non-primed seeds, eventhough embryo Ψπ measurements during priming had not revealed significant lowering. The relative growth rate of seedlings from primed seeds was higher than that of non-primed seeds for the first 12 h after radicle emergence.
The endosperm of tomato seeds consisted of two distinct cell types found in separate locations within the seed. At the micropylar end of the seed the endosperm cells had thin walls, whereas those in the rest of the seed had thickened walls. The outer walls of outermost endosperm cells in the rest of the seed had massively thickened walls whereas these were lacking from the outer cells of the micropylar region. -- All cells, except those of the root cap, contained protein bodies. The protein bodies of the micropylar region endosperm cells were seen to breakdown to form vacuoles prior to radicle emergence. The protein bodies in other cells did not appear to change prior to this time. During priming protein body breakdown was more extensive in the micropylar region endosperm cells and vacuole formation also occurred in the radicle. After radicle emergence the cells of the radicles from primed seeds were found to be about 50% larger than those of the radicles from non-primed seeds. -- Endosperm weakening preceded radicle emergence in tomato seeds. Slower germinating seeds within the population had higher values for endosperm resistance. Endosperm weakening during priming resulted in values for endosperm resistance which were lower than those measured from a population of germinating non-primed seeds. Germinating primed seeds had resistances which were similar to those of priming seeds. It was concluded that a final rapid endosperm weakening step may be necessary for radicle emergence to occur. -- These studies have shown that tomato seeds prime because the endosperm does not weaken sufficiently to permit expansion of the radicle. The mechanism by which some endosperm weakening was permitted, but the final weakening for radicle emergence was prevented was not identifiable. Priming advanced the timing of radicle emergence by improving the rate of water uptake by the seeds; by eliminating the time necessary for the loosening of embryo cell walls and by permitting the completion of the first step of the endosperm weakening process. Enbryos from primed seeds had improved cell wall extensibilities which permitted higher relative growth rates during the first 12 h after radicle emergence.
Mode of access: World Wide Web.
x, 121 leaves, 4 leaves of plates ill
Wilson, Dale Owen. "Threshing injury and mathematical modeling of storage deterioration in field bean seed (Phaseolus vulgaris L.) /". The Ohio State University, 1986. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487268021746847.
Pełny tekst źródłaMurahidy, Analeise Clare. "The microbial decomposition of seeds". Thesis, University of Canterbury. Microbiology, 2001. http://hdl.handle.net/10092/6860.
Pełny tekst źródłaBöber, Elisabeth. "Seeds of Change : Urban Agriculture". Thesis, Blekinge Tekniska Högskola, Sektionen för planering och mediedesign, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-5837.
Pełny tekst źródłaAbo-Gharsa, Salah M. "Studies on enclosed imbibed seeds". Thesis, University of Salford, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.305097.
Pełny tekst źródłaNorem, Margaret. "DELEP Seeds Arrive in Svalbard". University of Arizona (Tucson, AZ), 2011. http://hdl.handle.net/10150/556795.
Pełny tekst źródłaYazici, Erol 1961. "Pneumatic harvesting of jojoba seeds". Thesis, The University of Arizona, 1989. http://hdl.handle.net/10150/277230.
Pełny tekst źródłaKhalif, Ahmed Sheikh Hassan. "GERMINATION RESPONSES OF SORGHUM VARIETIES (SORGHUM BICOLOR L. MOENCH) TO FUNGICIDE SEED TREATMENTS". Thesis, The University of Arizona, 1985. http://hdl.handle.net/10150/275262.
Pełny tekst źródłaLestander, Torbjörn. "Multivariate NIR studies of seed-water interaction in Scots pine seeds (Pinus sylvestris L.) /". Umeå : Dept. of Silviculture, Swedish Univ. of Agricultural Sciences, 2003. http://epsilon.slu.se/s282.pdf.
Pełny tekst źródłaTasaki, Hiromi. "Light Effect on Seed Chlorophyll Content and Germination Performance of Tomato and Muskmelon Seeds". Thesis, Virginia Tech, 2008. http://hdl.handle.net/10919/43868.
Pełny tekst źródłaMaster of Science
Tangney, Ryan James. "Fire intensity, seasonal variation and seeds traits may influence seed fates in Banksia woodlands". Thesis, Curtin University, 2018. http://hdl.handle.net/20.500.11937/75785.
Pełny tekst źródłaO'Donoughue, Louise (Louise S. ). "A study of seed dehiscence in the genus Lotus (Fabaceae) using interspecific hybridization and embryo culture /". Thesis, McGill University, 1986. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=65420.
Pełny tekst źródłaLoehrlein, Marietta Margaret 1957. "Priming techniques and size characteristics of triploid and tetraploid watermelon seed". Thesis, The University of Arizona, 1988. http://hdl.handle.net/10150/276845.
Pełny tekst źródłaTurkoglu, Selda St. "Screening Of Tomato Seeds For Genetic Modification And Identification Of Genetically Modified Ripening Delayed Tomato Seeds". Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/3/12608510/index.pdf.
Pełny tekst źródłaGrasty, Monica R. "Let the Seeds Fall Where They May: Investigating the Effect of Landscape Features on Fine-Scale Seed Dispersal". PDXScholar, 2017. https://pdxscholar.library.pdx.edu/open_access_etds/4001.
Pełny tekst źródłaBengtsson, Emil. "Doseplanning ocular tumors with 125I-seeds". Thesis, Stockholm University, Medical Radiation Physics (together with KI), 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-7211.
Pełny tekst źródłaSince 1986 patients with ocular malignant melanoma have been treated with Ru-106 plaques at S:t Erik Eye Hospital. In 1998 I-125 radioactive seed plaques was presented as an alternative to Ru-106 when treating tumors with an apical height greater than 7 mm. Until June 2005 the doseplanning of these plaques was based on a depth-dose curve made in the dose planning system Cadplan supplied by Varian Medical Systems. In the recent years the capabilities of computerized 3D dose planning system has increased greatly. The number of types of seeds on the market has also increased.
In order to implement the modern 3D dose planning system Brachy Vision 7.3.10 in planning the I-125 plaques, a review of the dose planning process have been done.
The ultra sound equipment used by the ophthalmologist to determine the apical height of the tumor has been investigated in terms of accuracy. A phantom has been developed for this task.
As new seeds entered the market a comparision have been made comparing the Amersham 6711 seed with the Bebig I25.S06 seed. A method for measuring the activity of the single seeds has also been developed.
The dose planning system Brachy Vision 7.3.10 have been compared to the old dose planning method, and an implementation of the plaques into Brachy Vision have been made.
The ultra sound equipment was accurate in the regions of interest. It was also discovered that the Bebig I25.S06 seed gave slightly higher dose compared to the Amersham 6711 with the same activity. The difference between the seeds is however small. The results indicate that the old dose planning method gave a slight underdosage.
Kågesson, Filip. "Fuzz Testing Modbus using Optimized Seeds". Thesis, Högskolan i Halmstad, Akademin för informationsteknologi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-44765.
Pełny tekst źródłaShafer, Floyd L. (Floyd Lorenz). "Interaction of Microwaves and Germinating Seeds". Thesis, North Texas State University, 1987. https://digital.library.unt.edu/ark:/67531/metadc331641/.
Pełny tekst źródłaLehle, Fredric R., i Omer K. Ahmed. "Fermentation in Cotton (Gossypium hirsutum) Seeds". College of Agriculture, University of Arizona (Tucson, AZ), 1988. http://hdl.handle.net/10150/204520.
Pełny tekst źródłaMirdad, Zohair M. "The evaluation and improvement of seed quality and storage potential in cauliflower and cabbage seeds". Thesis, University of Aberdeen, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.288381.
Pełny tekst źródłaKonesky, David William. "Embryo-independent mobilization of endosperm starch in cereal seeds". Thesis, University of British Columbia, 1990. http://hdl.handle.net/2429/29984.
Pełny tekst źródłaLand and Food Systems, Faculty of
Graduate
Baker, Jillian Sarah. "Seeds of Hope, Seeds of Liberation: An Exploration of the Growth of Liberation Theology in the Philippines". Thesis, Boston College, 2013. http://hdl.handle.net/2345/3090.
Pełny tekst źródłaHaving first spoken to the situation of the poor in Latin America, liberation theology is a movement that has empowered the marginalized in a number of different regions and oppressive contexts. This thesis explores the growth of liberation theology in the Filipino situation by drawing on the history and present state of the Philippines and the author’s own experiences in the country. After a description of the history of colonialism, the development of the political systems, and the condition of the environment, the paper also describes the genesis of liberation theology in Latin America as a template for Filipino liberation theology. The next chapter details the current movements for liberation in the Philippines, particularly how they apply to the political and environmental realities of the country. The author’s own stories of accompanying a marginalized community of persons with disabilities are included as instances of liberation among the Filipino people
Thesis (BA) — Boston College, 2013
Submitted to: Boston College. College of Arts and Sciences
Discipline: College Honors Program
Discipline: Theology
Vogler, Wayne Douglas. "Autoecology of Sporobolus pyramidalis with emphasis on seed ecology /". St. Lucia, Qld, 2002. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe16730.pdf.
Pełny tekst źródłaVan, Tonder Nicolaas Christiaan Petrus. "Seed treatment of maize, sorghum and sunflower with effective micro- organisms". Thesis, [Bloemfontein?] : Central University of Technology, Free State, 2012. http://hdl.handle.net/11462/141.
Pełny tekst źródłaA series of incubation studies and greenhouse experiments were conducted to evaluate the use of EM seed treatments, at different application levels, handling techniques and soil conditions on germination and seedling vigour of selected cultivars of maize, sorghum and sunflower. Two incubation studies were conducted to evaluate the germination and seedling vigour of maize, sorghum and sunflower seeds treated with M-EM from three different suppliers, multiplied at two different ratios (1% and 3%) and diluted at three different levels (0.01%, 0.1% and 1.0%) compared to a control treated with pure water. Results revealed no significant differences under optimum germination conditions, while seedlings under cold stress indicated that M-EM treatments positively affected germination and seedling vigour compared to the control treatments. Two incubation studies were also conducted to evaluate the germination and seedling vigour of maize, sorghum and sunflower seeds treated with M-EM from three different suppliers, multiplied at two different ratios (1% and 3%) and exposed to the influences of irradiation and temperature fluctuation. From the results became clear that the correct storage and handling is essential in optimizing the effect of M-EM on seeds. Even though M-EM was exposed to irradiation and temperature fluctuation, M-EM still had positive effects on germination and seedling vigour. Pot experiments were conducted to determine the effect of EM as seed treatment, at different dilutions, on germination, seedling vigour and dry mass of maize, sorghum and sunflower at different planted depths. Germination were not affected by the M-EM treatment, while shoot length results indicated that seed treated with M-EM could have significant effect on seedling survival. A greater effect was visible on the shoot length of shallow planted seeds, than on deeper planted seeds. From the results no single company, ratio or dilution could be prescribed as paramount. To further investigate the effect of M-EM subjected to the influences of irradiation and temperature fluctuation; maize, sorghum and sunflower seeds were treated with M-EM from three different suppliers, multiplied at two different ratios (1% and 3%) and exposed to the influences of irradiation and temperature fluctuation and planted in soil. M-EM treatments only benefited the germination of deeper planted sorghum seeds compared to the control treatments. The shoot lengths of deeper planted maize and sunflower seed were positively increased by the M-EM treatments while also resulting in significant results for the overall shoot length of sorghum. The third pot study was conducted to determine the influence of EM as a seed treatment on maize, sorghum and sunflower planted in three different soils, namely: sterilized soil, soil treated with M-EM and Fusarium containing soil. Germination and seedling vigour results of the sterilized and M-EM treated soil revealed to be superior to that of the Fusarium containing soil. From the results was concluded that M-EM treatments will probably improve early seedling growth of maize, sorghum and sunflower compared to untreated seed and that M-EM seed treatment and a pre-plant EM soil treatment might assist seeds in unfavourable germination and growth conditions.
Garcia, Emilio. "Chuva de sementes em um fragmento de floresta estacional semidecidua em Campinas, SP". [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/316276.
Pełny tekst źródłaDissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Biologia
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Resumo: A região de Campinas foi descrita como uma das áreas mais devastadas do estado. Dessa forma, a Mata Santa Genebra, uma das maiores reservas urbanas do mundo, apresenta grande importância, não apenas acadêmica, mas para o município em geral. A elaboração de um plano de manejo e de recuperação florestal torna-se cada vez mais necessária nesse tipo de fragmento, sendo que o estudo da dinâmica da chuva de sementes serve como um importante subsídio na elaboração desse plano. Assim, o presente projeto tem como objetivo principal avaliar se há diferenças na chuva de sementes entre as diferentes fisionomias vegetais nessa mata. Os resultados obtidos mostram que há diferenças significativas entre a abundância e a diversidade de sementes em diferentes escalas. As áreas de borda de mata e a área que sofreu um incêndio recente apresentam abundâncias e diversidades de sementes significativamente menores do que os valores encontrados no interior da floresta (área mais preservada) e no brejo. Essas diferenças podem ser explicadas de três maneiras. A primeira leva em consideração os fatores microclimáticos decorrentes da proximidade dessas áreas a uma matriz diferente (cana de açúcar). Nessas áreas há a possibilidade de uma maior incidência de ventos e de luminosidade, que poderiam em ultima instancia influenciar negativamente a abundância e a diversidade de plantas nessas áreas. Por este ponto de vista a chuva de sementes seria apenas um reflexo da comunidade vegetal. A segunda explicação possível é que estes mesmos fatores microclimáticos podem influenciar negativamente as interações mutualísticas entre as plantas e seus dispersores. Essas áreas são teoricamente mais desprotegidas contra ventos e predadores. A terceira explicação esta mais ligada a área queimada, diversos autores discutem que após uma queimada a área entra em um processo sucessional semelhante a abertura de uma clareira. Em um dos estágios sucessionais, é prevista uma maior abundância de arbustos, trepadeiras e gramíneas. Se considerarmos que a área queimada ainda esta em um estágio sucessional inicial podemos esperar que a diversidade e a abundância de sementes do extrato arbustivo arbóreo seja significativamente menor do que os encontrados para uma área em estágio sucessional mais avançado (interior da mata). Outro dado importante nos mostra que os efeitos microclimáticos a 3m da estrada que circunda a mata podem resultar numa redução ainda maior na abundância e na riqueza sementes em relação a uma faixa um pouco mais interna (10 ¿ 25m). Quando mudamos de escala encontramos outras diferenças. Ao compararmos áreas de borda que sofreram uma estratégia de manejo (limpeza de trepadeiras e gramíneas, plantio de espécies de árvores nativas) com áreas de borda intocadas, não encontramos diferenças significativas nem para abundância de sementes nem para a diversidade de sementes, isso nos mostra que pelo menos do ponto de vista da chuva de sementes a estratégia de manejo ainda não foi eficiente. Nosso trabalho mostrou, que do ponto de vista da chuva de sementes, a situação da Mata Santa Genebra é extremamente preocupante. Além de poucas sementes chegarem ao solo nas áreas de borda e queimada, a abundância média de sementes por metro quadrado chegando ao solo da mata como um todo é significativamente menor do que o encontrado em outros fragmentos florestais. O nosso trabalho torna-se assim um importante subsídio para a elaboração de estratégias de manejo eficientes e longo prazo para a manutenção de um dos maiores e mais importantes fragmentos florestais urbanos do país
Mestrado
Ecologia
Mestre em Ecologia
Kellerman, Millicent Johanna Susanna. "Seed bank dynamics of selected vegetation types in Maputaland, South Africa". Diss., Connect to this title online, 2004. http://upetd.up.ac.za/thesis/available/etd-02012005-090837.
Pełny tekst źródłaCavalcante, Filho Francisco Nahum. "Revestimento e armazenamento de sementes de Brachiaria humidicola (Rendle) Schweick e Brachiaria brizantha (Hochst. ex A. Rich.) Stapf". [s.n.], 2010. http://repositorio.unicamp.br/jspui/handle/REPOSIP/256951.
Pełny tekst źródłaTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Agricola
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Resumo: O revestimento constitui-se num grande avanço na produção tecnológica de sementes, inclusive de forrageiras. Apesar da crescente utilização dessa tecnologia pelas empresas produtoras de sementes nos últimos anos, poucas são as informações publicadas em relação ao comportamento de sementes revestidas durante o período de armazenamento. Os experimentos foram realizados na Faculdade de Engenharia Agrícola - FEAGRI/UNICAMP, com o objetivo de obter informações adicionais sobre a qualidade fisiológica de sementes de Brachiaria humidicola (Rendle) Schweick e Brachiaria brizantha (Hochst. ex A. Rich.) Stapf, submetidas a diferentes tratamentos. No início e após 45, 90, 135, 180, 270 e 360 dias de armazenamento nas temperaturas ambiente, 30°C e 40°C, as sementes foram submetidas às avaliações do grau de umidade (U), germinação (G), viabilidade-tetrazólio (TZ), envelhecimento acelerado (EA), primeira contagem de germinação (1ªCG), emergência das plântulas em areia (E), comprimento da parte aérea das plântulas (CPA), índice de velocidade de emergência (IVE), peso seco da plântula (PSP), peso de mil sementes (PMS) e atividade de água (Aw). Foi utilizado um delineamento inteiramente casualizado, com quatro repetições por tratamento e três temperaturas de armazenamento. A análise estatística foi realizada através do teste de Tukey para comparação das médias, em nível de 5% de probabilidade. Na avaliação do início do período de armazenamento as sementes tratadas tiveram resultados em valores absolutos superiores à testemunha, com superação da dormência para as duas espécies, sem diferenças estatísticas significativas. As sementes incrustadas tiveram redução acentuada do seu grau de umidade, com média de 2,80 para Brachiaria humidicola e de 2,90 para Brachiaria brizantha ao longo do armazenamento. Os maiores porcentuais de germinação ocorreram em períodos distintos para as espécies, aos 270 dias para Brachiaria humidicola e aos 135 dias para Brachiaria brizantha. A escarificação química das sementes com ácido sulfúrico é uma alternativa de tratamento se a intenção for realizar a semeadura até 45 dias após a colheita. Para armazenamento por períodos mais longos, a técnica de revestimento por incrustação é uma importante alternativa, pois não prejudica a germinação e permite a adição de diversos produtos químicos à semente, aumentando o seu valor agregado
Abstract: The coating is to be a major technological breakthrough in the production of seeds, including grasses. Despite the increasing use of technology by seed companies in recent years, there are few published information about the behavior of coated seeds during the storage period. The experiments were performed at the College of Agricultural Engineering, FEAGRI/ UNICAMP, in order of obtaining information about the physiology quality of Brachiaria humidicola (Rendle) Schweick and Brachiaria brizantha (Hochst. ex A. Rich.) Stapf. seeds, submitted to different treatments. At the beginning and after 45, 90, 135, 180, 270 and 360 days of storage at ambient conditions and at temperatures of 30°C and 40°C. The seeds were evaluated by moisture content, germination, feasibility-tetrazolium, accelerated aging, first count germination, seedling emergence in sand, seedling length, speed of emergency index, seedlings dry weight, thousand seeds weight and water activity. A completely randomized design with four replications per treatment and three storage temperatures. Was used statistical analysis was performed using the Tukey test at 5% probability. The assessment at the beginning of storage the treated seeds were found to have absolute values greater than control, with dormancy for both species, no statistically significant differences. The incrusted seeds were embedded substantially reducing the moisture content, averaging 2.80 for Brachiaria humidicola and 2.90 for Brachiaria brizantha during storage. The highest percentage of germination occurred at different times for the species, to 270 days for Brachiaria humidicola and 135 days for Brachiaria brizantha. The chemical scarification of seeds with sulfuric acid is an alternative treatment if the intention is either to sow until 45 days after harvest. To store for longer periods, the technique of incrusting is an important alternative, since not affect the germination and allows the addition of various chemicals to the seed, increasing its aggregate value
Doutorado
Tecnologia Pós-Colheita
Doutor em Engenharia Agrícola
Parisi, João José Dias. "Associação entre fungos e a viabilidade de sementes de Inga vera subsp. affinis (DC.) T.D. Penn. durante o armazenamento". [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/256849.
Pełny tekst źródłaTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Agrícola
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Resumo: O elevado metabolismo dificulta a manutenção da viabilidade de sementes de Inga vera. As principais estratégias para a conservação dessas sementes durante o armazenamento consistem na desidratação parcial, na adição de ácido abscísico, no uso de solução de polietileno glicol e de baixas temperaturas. Contudo, tais condições ainda podem conduzir à deterioração, tanto pela atividade do seu próprio metabolismo, como pelo desenvolvimento de micro-organismos favorecidos pela umidade. Desta forma, o presente trabalho teve como objetivo analisar o grau de interferência dos fungos no metabolismo respiratório dos embriões de Inga vera com diferentes níveis de hidratação e a eficiência do tratamento com fungicidas, visando à manutenção da viabilidade durante o armazenamento. Para tanto, os embriões foram obtidos em três anos, sendo em 2009 colhidos em duas fases distintas de maturação (imaturos e maduros), submetidos a dois níveis de secagem, tratados ou não com carboxin + thiram e armazenados sob 7 e 25 oC por até 65 dias. Em 2010, foram colhidos maduros, submetidos a quatro níveis de secagem, tratados ou não com carbendazin + thiram e armazenados a 7 ºC por 120 dias. Nos experimentos de avaliação da respiração, os embriões obtidos em 2010 foram tratados ou não com carbendazin + thiram, mortos ou não por congelamento e inoculados ou não com Aspergillus flavus. Os colhidos em 2011 foram mantidos sem secagem e tratados ou não com carbendazin + thiram e a respiração foi avaliada a 7 e a 25 ºC. Constatou-se que a incidência de fungos, principalmente Fusarium oxysporum, juntamente com o teor de água e a temperatura influenciam nas taxas respiratórias dos embriões de I. vera maduros e que o tratamento com carbendazin + thiram, na dose de 80 mL do produto comercial para 100 kg de embriões, é eficiente na manutenção da viabilidade de embriões maduros e sem secagem, a 7 ºC por 120 dias. Pestalotiopis sp., Phoma sp., Phomopsis diachenii e Colletotrichum gloeosporioides aparecem durante o armazenamento, simultaneamente à deterioração dos embriões de I. vera. O desenvolvimento de fungos em embriões de I. vera difere do padrão clássico definido com base em sementes ortodoxas
Abstract: The high metabolism hinders the maintenance of Inga vera seeds viability. The main strategies for the conservation of these seeds during storage consist of the partial dehydration, addition of abscisic acid, use of polietileno glicol solution and of low temperatures. However, such storage conditions can lead to further deterioration of the seed, either by the activity of its own metabolism, as the development of microorganisms favored by moisture. This study aimed to analyze the degree of interference of fungi on the respiratory metabolism of Inga vera embryos with different levels of hydration and the efficiency of fungicide treatment, as maintaining these embryos viability during storage. The embryos were obtained in three years. In 2009 they were collected in two distinct stages of maturation (immature and mature), subjected to two drying levels, treated or not treated with carboxin + thiram and stored at 7 and 25 º C for up to 65 days. In 2010 the embryos were collected mature, subjected to four drying levels, treated or not treated with carbendazin + thiram and stored at 7 º C for 120 days. In the experiments carried out to evaluate the respiration, the embryos obtained in 2010, were treated or not treated with carbendazin + thiram, killed or not by freezing and inoculated or not with Aspergillus flavus. The embryos collected in 2011 were kept without drying, treated or not treated with carbendazin + thiram and respiration was evaluated at 7 and 25 ° C. It was found that the incidence of fungi, primarily Fusarium oxysporum, together with the water content and temperature influence respiration rates of mature embryos of I. vera and that the treatment with carbendazin + thiram at the dose of 80 mL of the commercial product to 100 kg of embryos is effective for maintaining the viability of mature embryos without drying at 7 ° C for 120 days. Pestalotiopis sp., Phoma sp., Phomopsis diachenii and Colletotrichum gloeosporioides are detected during the storage time, along with the deterioration of the embryos of I. vera. The development of fungi on embryos of I. vera differs from the classic pattern verified for orthodox seeds
Doutorado
Tecnologia Pós-Colheita
Doutor em Engenharia Agrícola
De, Resende Ricardo CapuÌcio. "Design of a novel punch planter capable of producing equidistant seed spacing of irregular shaped seeds". Thesis, Cranfield University, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.269519.
Pełny tekst źródłaFranke, JanaLynn. "Identification of the Infection Route of a Fusarium Seed Pathogen into Non-Dormant Bromus tectorum Seeds". BYU ScholarsArchive, 2014. https://scholarsarchive.byu.edu/etd/4318.
Pełny tekst źródłaFORTI, CHIARA. "Seeds in the context of agricultural research: combining traditional and innovative approaches to boost seed quality". Doctoral thesis, Università degli studi di Pavia, 2020. http://hdl.handle.net/11571/1301946.
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