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Dissertations / Theses on the topic 'Seed traits'

Author: Grafiati
Published: 4 June 2021
Last updated: 25 July 2025

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1

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.

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This thesis presents a multifaceted approach to understanding seed survival during fire. I considered seed survival of high temperatures in the context of seed moisture content, soil temperature, and seed depth in the soil profile. I identified several seed traits associated with seed survival and seedling emergence depth. I modelled seasonal variation and interactions between these traits, fuel dynamics and soil temperatures to identify conditions and periods for burning that minimise risk of seed mortality.
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2

Brace, Ryan Christopher. "Agronomic and seed traits of soybean lines with high-oleate concentration." [Ames, Iowa : Iowa State University], 2010. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1476279.

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3

Zhou, Zhou. "NEW SOURCES OF SOYBEAN SEED COMPOSITION TRAITS IDENTIFIED THROUGH FUNCTIONAL GENOMICS." OpenSIUC, 2020. https://opensiuc.lib.siu.edu/dissertations/1786.

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Soybean [Glycine max (L.) Merr.] is the world’s most widely grown protein/oilseed crop and provides about 70% of global protein meal and 53% of vegetable oil in the United States. Soybean seed oil contains five major fatty acids, from which palmitic acid and stearic acid are two saturated fatty acids, oleic acid improves oxidative stability and linolenic acid is an essential fatty acid for human health. Soybean seed protein and oil are two important quality indices for soybean germplasm breeding. Soluble carbohydrates present in soybean meal provide metabolizable energy in livestock feed. To d
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4

Escamilla, Sanchez Diana Marcela. "Improving Breeding Selection of Seed Quality Traits for Food-Grade Soybeans." Thesis, Virginia Tech, 2018. http://hdl.handle.net/10919/81963.

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Natto and sprout soybeans are produced using small-seeded soybeans and their production is a high value alternative to grow grain soybeans for food in U.S. The development of soybean cultivars with improved natto and sprout quality is crucial for maintaining and increasing the soyfood market. However, there is insufficient information on sprout soybean characteristics. Therefore, the first objective of this study was to evaluate seed and sprout traits as potential selection criteria and study the storage effect on sprout quality. Seeds can be a vehicle for transmission of pathogens capable of
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5

Widiarsih, Sasanti [Verfasser], Christian [Akademischer Betreuer] Möllers, Andreas [Gutachter] Börner, and Wolfgang [Gutachter] Link. "Inheritance of seed quality traits, seed germination and seed longevity in three doubled haploid populations of oilseed rape / Sasanti Widiarsih ; Gutachter: Andreas Börner, Wolfgang Link ; Betreuer: Christian Möllers." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2017. http://d-nb.info/1149954612/34.

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6

Mardorf, Justin Lee. "Agronomic and seed traits of soybean lines with the Rag1 gene for aphid resistance." [Ames, Iowa : Iowa State University], 2010. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1476323.

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7

Atangana, Alain Rene. "Phenotypic diversity in fruit and seed traits, and neutral genetic diversity in Allanblackia Floribunda." Thesis, Université Laval, 2010. http://www.theses.ulaval.ca/2010/27171/27171.pdf.

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Allanblackia floribunda est un arbre des forêts denses humides tropicales valorisé pour la teneur élevée en acides gras de ses graines, essentiellement constitués d’acides stéarique et oléique dont l’efficacité dans la réduction du mauvais cholestérol de l’organisme humain a été prouvée. Pour cette raison, les graines de A. floribunda collectées en milieu naturel sont commercialisées. Toutefois, les travaux sur la culture de cette espèce sont encore à leur phase initiale. Nous avons déterminé la possibilité d’amélioration génétique de cette espèce en échantillonnant 17 à 40 fruits par arbre de
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8

Rusch, Ursina Denise. "Scatter-hoarding in Acomys subspinosus : the roles of seed traits, seasonality and cache retrieval." Thesis, Stellenbosch : Stellenbosch University, 2011. http://hdl.handle.net/10019.1/18076.

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Thesis (MSc)--Stellenbosch University, 2011.<br>ENGLISH ABSTRACT: With growing concerns about current environmental issues, such as climate change, that affect ecosystems around the world, understanding ecosystem function is becoming increasingly important. In this study, I investigate the plant – seed disperser mutualism between an endemic scatter-hoarding mouse Acomys subspinosus and its Proteaceae plant counterpart Leucadendron sessile in the biodiversity hotspot of the Cape Floristic Region, South Africa. The main objective of this thesis is to investigate the seed selection and caching b
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9

Jablonski, Leanne M. "Reproductive response to elevated CO2 : the roles of vegetative carbon storage, nitrogen and seed traits." Thesis, McGill University, 1997. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=34646.

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This study focused on the reproductive response to elevated CO2 of plants possessing below-ground storage. I tested the hypotheses that under elevated CO2: (1) Plants with greater non-foliar storage capacity win show more reproductive response and (2) The altered foliar physiology of carbon (C) and nitrogen (N) use will cause increases in seed number and quality. Carbon dioxide treatments of High (650 muL L-1) and Ambient (360 muL L-1) were used in a controlled environment, simulated growing season, and in a natural pasture community. Hypothesis 1 was tested experimentally using four Raphanus
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10

Skoneczka, Jeffrey Allen. "Investigation of Putative Genetic Factors Associated with Soybean [Glycine Max (L.) Merr.] Seed Quality Traits." Diss., Virginia Tech, 2009. http://hdl.handle.net/10919/40338.

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Soybeans are an economically important plant, with an annual crop value that consistently exceeds 20 billion dollars in the United States alone. A recent increase in demand for soybeans, stemming from its diverse applications in products such as animal feed, oil, and biofuel, has created an emphasis for soybean breeders in value added cultivars. These cultivars, have improved, or altered, agronomic or seed composition traits, allowing them to be efficiently utilized in a specific niche of the processing industry. Facilitating the development of such cultivars requires a thorough understandi
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11

Mossman, Ronald E. "Seed Dispersal and Reproduction Patterns Among Everglades Plants." FIU Digital Commons, 2009. http://digitalcommons.fiu.edu/etd/135.

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In this study three aspects of sexual reproduction in Everglades plants were examined to more clearly understand seed dispersal and the allocation of resources to sexual reproduction— spatial dispersal process, temporal dispersal of seeds (seedbank), and germination patterns in the dominant species, sawgrass (Cladium jamaicense). Community assembly rules for fruit dispersal were deduced by analysis of functional traits associated with this process. Seedbank ecology was investigated by monitoring emergence of germinants from sawgrass soil samples held under varying water depths to determine the
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Jablonski, Leanne M. "Reproductive response to elevated CO¦2, the roles of vegetative carbon storage, nitrogen and seed traits." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape16/PQDD_0008/NQ36986.pdf.

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13

AL-Amery, Maythem. "IMPACT OF A HIGH OIL AND PROTEIN ON AGRONOMIC TRAITS AND OVERALL SEED COMPOSITION IN SOYBEAN." UKnowledge, 2017. https://uknowledge.uky.edu/pss_etds/97.

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New soybean lines have been developed with significantly higher oil, protein + oil and higher meal protein. These soybeans contain a VgD1 gene (highly active acyl-CoA:diacylglycerol acyltransferase, DGAT from Vernonia galamensis (VgDGAT1A) produces much higher oil synthesis and accumulation activity in soybean. Soybean with active DGAT from Vernonia galamensis (VgDGAT1A) has active TAG biosynthesis relative to other DGATs including from soybeans and Arabidopsis. DGATs catalyze the final step of TAG synthesis: DAG (diacylglycerol) + acyl-CoA → TAG + CoASH (Coenzyme A is notable for its role in
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14

Marteinsdóttir, Bryndís. "Plant community assembly in grazed grasslands." Doctoral thesis, Stockholms universitet, Institutionen för ekologi, miljö och botanik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-102185.

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Species assembly into local communities from the surrounding region can be caused either by species failure to reach the site (i.e. seed limitation) or to establish (i.e. establishment limitation). The aim of this thesis was to investigate plant species assembly and to determine the relative importance of different factors in that process. In a cultivated landscape in southeast Sweden, plant community assembly was studied in grazed ex-arable fields. Community assembly from the surrounding region into the local community was explored using trait-based null models and seed sowing and transplanti
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15

Lu, Jiaqi. "The effect of sexual selection and mating on personality traits and behavior consistency of Callosobruchus maculatus." Thesis, Uppsala universitet, Institutionen för biologisk grundutbildning, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-392202.

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Animals’ personality traits are defined as consistent behavior tendencies and the function of them in life-history strategy and reproductive success has been given a lot of explanations in a large amount of research. However, the behavior consistency of individuals in different sexes, mating status and selection regimes is rarely mentioned. In this research, we were interested in personality traits and their consistency in inter-individuals and intra-individuals, and proposed that with the removal of fecundity selection males would evolve to be more female-like and decrease their locomotor act
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16

Wills, Timothy Jarrod 1974. "Succession in sand heathland at Loch Sport, Victoria : changes in vegetation, soil seed banks and species traits." Monash University, Dept. of Biological Sciences, 2002. http://arrow.monash.edu.au/hdl/1959.1/7742.

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17

Guja, Lydia. "The influence of morphological and physiological seed traits on oceanic dispersal and germination in saline coastal environments." Thesis, Curtin University, 2014. http://hdl.handle.net/20.500.11937/59664.

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This thesis investigates the morphological and physiological seed traits that influence the capacity of coastal plant seeds to be dispersed by the ocean and germinate in post-dispersal environments. A series of multidisciplinary experiments that examine the ecology, biology and physiology of coastal seeds are presented. The high buoyancy and broad germination thresholds of the tested species indicate that they have a capacity for oceanic dispersal.
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18

Kiran, Aysha [Verfasser]. "Genetic and phenotypic analysis of complex seed and root traits in oilseed rape (Brassica napus L.) / Aysha Kiran." Gießen : Universitätsbibliothek, 2015. http://d-nb.info/1068874821/34.

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19

Maughan, Peter Jeffrey. "Microsatellite polymorphism, orthologous evolution and molecular marker analysis of seed quality traits in soybean (Glycine max L. Merr.)." Diss., This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-06062008-163918/.

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Seger, Guilherme Dubal dos Santos. "Efeitos filogenéticos em atributos reprodutivos de espécies endozoocóricas em uma floresta com Araucaria no sul do Brasil." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2010. http://hdl.handle.net/10183/27518.

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Os processos de dispersão, sobrevivência da prole e os períodos fenológicos das espécies vegetais, são o resultado tanto de sua história evolutiva quanto de suas adaptações ao ambiente. Para analisar o padrão evolutivo destes processos, foi testada a hipótese de que a similaridade entre espécies aparentadas em relação aos seus atributos reprodutivos (frutos, sementes e a fenologia da floração e frutificação) é maior do que o esperado por mero acaso (alto sinal filogenético), através de testes de Mantel parcial controlando o efeito da forma de vida das espécies. Os resultados revelaram que a ma
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21

Duncan, Corrine. "Seeds, soils and moisture : ecophysiology to inform mine site restoration in arid zones." Thesis, Federation University Australia, 2019. http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/180639.

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Mining in arid regions of Australia is followed by restoration and rehabilitation efforts. However, attempts to reintroduce many woody plant species have been unsuccessful. Water is the key limiting resource to plant growth and seed germination in arid zones. In this thesis, I investigated ecophysiological processes that may help improve recruitment across novel arid landscapes. I tested seed traits and dormancy cues of eight keystone plants and found that six of them had non-dormant, rapidly germinating seeds; a trait we propose is an adaptation to the region’s unpredictable rainfall. To iden
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22

Casas, Grasiela. "Padrões de diversidade de aves e rede de interação mutualística ave-planta em mosaico floresta-campo." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2015. http://hdl.handle.net/10183/141942.

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Estudos clássicos com diversidade taxonômica, apesar de serem essenciais, não consideram as diferenças funcionais entre as espécies de uma comunidade. A abordagem considerando atributos funcionais e diversidade funcional vem preenchendo esta lacuna. A compreensão da estrutura e dinâmica de interações mutualísticas também é um elemento essencial em estudos de biodiversidade, permitindo a investigação de mecanismos ecológicos e evolutivos. Porém, a maioria dos estudos com redes de interação disponíveis na bibliografia são pequenas em número de espécies e interações, e é possível que estes dados
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23

Liu, Yang. "Eco-evolutionary perspective on life-history traits with special emphasis on seed dormancy and its genetic basis of adaptation in conifers." Thesis, University of British Columbia, 2016. http://hdl.handle.net/2429/59232.

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Life-history traits, known as fitness components, are related to the timing and success of development, reproduction, and senescence throughout the life cycle. Selection in variable environments may favor plants to defer germination until suitable conditions occur. Seed dormancy is an innate constraint on germination timing and prevents germination during periods that are ephemerally favorable. The timing of seed germination is the earliest life-history trait that is expressed and sets the context for the traits that follow. As such, seed dormancy may be construed as an adaptation for survival
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24

Chappell, Matthew. "Assessment and Reaction of Triticum aestivum Genotypes to Fusarium graminearum and effects on Traits Related to Grain Yield and Seed Quality." Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/30784.

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Fusarium graminearum (Schwabe), causal organism of fusarium head blight (FHB), has become a major pathogen of wheat (Triticum aestivum L.) throughout North America. Since its discovery in the United States, the disease has spread south and east until at present it is an annual threat for growers of winter wheat in the Mid-Atlantic region. Yield losses for soft red winter (SRW) wheat averaged 908 kg ha-1 in the FHB outbreak of 1998 (Griffey et al., 1999). The economic loss from this single FHB epidemic was an estimated 8.5 million dollars. Environmental conditions favorable for FHB developm
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Revenikioti, Maria. "Life history and reproductive fitness variation associated with the Y chromosome in Callosobruchus maculatus." Thesis, Uppsala universitet, Institutionen för biologisk grundutbildning, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-435099.

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In the seed beetle Callosobruchus maculatus, the female is the larger sex and the male is the smaller sex. However, males that are almost as large as females can also occur, which is due to a specific Y chromosome haplotype. This Y chromosome polymorphism is not expected since the Y chromosome does not recombine and has lost genetic variation as a consequence. Nevertheless, the Y chromosome manages to maintain this polymorphism. Thus, the questions asked are how this occurs and how the large male Y haplotype persists to exist since previous studies have shown how small males have the higher fi
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Lindgren, Åsa. "Effects of herbivory on arctic and alpine vegetation." Doctoral thesis, Stockholm University, Department of Botany, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-6746.

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<p>The distribution of plant species and functional traits in alpine and arctic environments are determined by abiotic conditions, but also by biotic interactions. In this thesis, I investigate interactions among plants and herbivory effects on plant community composition and plant functional traits in three different regions: Swedish Lapland, Beringia (USA/Russia) and Finnmark (Norway). Reindeer grazing was found to be extensive in southern Lapland and had limited effects on plant community composition and seedling germination. However, reindeer presence was found to influence plant functiona
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Глинянська, Анастасія Едуардівна. "Вивчення біологічних властивостей льону у процесі позакласної роботи учнів". Магістерська робота, ЗНУ, 2020. https://dspace.znu.edu.ua/jspui/handle/12345/3437.

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Глинянська А. Е. Вивчення біологічних властивостей льону у процесі позакласної роботи учнів : кваліфікаційна робота магістра спеціальності 014 "Середня освіта" / наук. керівник І. О. Полякова. Запоріжжя : ЗНУ, 2020. 76 с.<br>EN : This paper presents 76 pages of printed text, contains 8 tables, 13 figures. References includes 69 sources. The object of the study was selected annual wild species of the genus Linum: Linum angustifolium, Linum bienne, Linum crepitans, Linum hispanicum. The work has relevance in our time in the practice of wild species of flax in genetic and breeding work and to
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Berry, Christopher J. J. "Post-dispersal seed predation in a conifer-broadleaf forest remnant : the importance of exotic mammals." Lincoln University, 2006. http://hdl.handle.net/10182/666.

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Despite extensive international acceptance of the critical role of mammalian post-dispersal seed predation in many plant communities, in New Zealand we have limited knowledge of these predators’ influence on plant recruitment in our forests. The principle objective of my thesis was to determine the importance of exotic mammals as post-dispersal seed predators in a New Zealand conifer-broadleaf forest remnant. To address this goal, I used a series of field-based experiments where the actions of different post-dispersal seed predators were separated by wire-mesh exclosures. My study was conduct
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Arène, Fabien. "Ecologie comparative de la germination : des plantes à graines au genre Silene en région PACA." Thesis, Aix-Marseille, 2016. http://www.theses.fr/2016AIXM4339.

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La germination est un processus clé qui conditionne la régénération des plantes dans leur milieu ainsi que leur distribution. Connaître les conditions thermique et hydrique qui permettent aux plantes de germer est un préalable nécessaire à l’identification des menaces qui pèsent sur elles et tout particulièrement dans un contexte de changement climatique. Les modèles en temps thermique et temps hydrique permettent de prédire la phénologie de germination sur le terrain en fonction des conditions climatiques dans l’environnement de la graine dépassant des valeurs seuil de température et de poten
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Pereira, Elise de Matos [UNESP]. "Estratégias de seleção e efeito de armazenamento de sementes em populações segregantes de soja." Universidade Estadual Paulista (UNESP), 2016. http://hdl.handle.net/11449/141481.

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Submitted by ELISE DE MATOS PEREIRA null (elisedematospereira@yahoo.com.br) on 2016-07-08T18:57:03Z No. of bitstreams: 1 Tese ELISE versão final.pdf: 1393146 bytes, checksum: 6c06f84e4aa8c13cd8fa0a3303de315d (MD5)<br>Approved for entry into archive by Ana Paula Grisoto (grisotoana@reitoria.unesp.br) on 2016-07-12T13:36:44Z (GMT) No. of bitstreams: 1 pereira_em_dr_jabo.pdf: 1393146 bytes, checksum: 6c06f84e4aa8c13cd8fa0a3303de315d (MD5)<br>Made available in DSpace on 2016-07-12T13:36:44Z (GMT). No. of bitstreams: 1 pereira_em_dr_jabo.pdf: 1393146 bytes, checksum: 6c06f84e4aa8c13cd8fa0a3303
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Zirondi, Heloiza Lourenço. "O efeito do histórico do fogo na fenologia reprodutiva e atributos de sementes e germinação em espécies de Cerrado /." Rio Claro, 2019. http://hdl.handle.net/11449/182467.

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Orientador: Alessandra Fidelis<br>Resumo: No Cerrado, um dos fatores abióticos que influenciam na fenologia das plantas é o fogo, o qual é um distúrbio natural que interfere em diversos ecossistemas do mundo. O fogo altera as condições do habitat podendo afetar a floração, frutificação, atributos das sementes e germinação. Portanto, esse projeto visou compreender o efeito do fogo na fenologia reprodutiva e nos atributos de semente e germinação da comunidade do Cerrado. Para isso, foram realizadas a contagem do número de ramos (vegetativos e reprodutivos) por espécie, realizados
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Shukla, Ushma. "Dispersion épizoochore des graines par les ongulés sauvages dans des paysages changeants : le cerf élaphe comme étude de cas." Thesis, Orléans, 2020. http://www.theses.fr/2020ORLE3060.

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L'épizoochorie définit la dispersion des plantes véhiculées sur le corps des animaux. Elle concerne herbacées et graminées, arbres et arbustes étant dispersés par endozoochorie et vecteurs abiotiques. Filtre biotique sélectif, elle façonne les communautés végétales locales à partir du pool régional d'espèces. Les populations abondantes d’ongulés sauvages et leurs longs déplacements créent ainsi de fréquents "liens mobiles" entre patchs d'habitat. J’ai ainsi étudié le rôle de ces animaux, notamment du cerf élaphe, comme vecteurs de dispersion épizoochore dans la structuration des communautés vé
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Boigné, Audrey. "Restauration écologique de prairies humides à vocation agricole suite au comblement d'une ballastière en basse vallée de Seine : incidence du type de sol recréé sur les fonctions pédologiques associées et sur la dynamique de colonisation végétale." Thesis, Normandie, 2017. http://www.theses.fr/2017NORMR008/document.

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Dans un contexte de destruction des zones humides à l’échelle mondiale, conséquence des activités d’origine anthropique, la restauration écologique de ces milieux et de leurs fonctions est devenue un enjeu écologique et sociétal. L’objectif de ce projet est de recréer des prairies humides à vocation agricole aux caractéristiques pédologiques et floristiques aussi proches que possible de celles des prairies totalement détruites par l’exploitation de matériaux alluvionnaires. L’étude présentée ici se focalise sur l’incidence des matériaux pédologiques utilisés pour la recréation de quatre sols s
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Delamare, Jeremy. "Analyses de deux stratégies d’acclimatation à un stress thermique intense reposant sur une thermo-sensibilisation ou une sensibilisation médiée par des bactéries PGPR chez le colza et la caméline." Electronic Thesis or Diss., Normandie, 2023. http://www.theses.fr/2023NORMC243.

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Le changement climatique auquel nous sommes confrontés est caractérisé notamment par une modification des profils thermiques en termes d’intensité, de durée et de répétition des vagues de chaleur. Ces vagues de chaleur surviennent lors des stades reproducteurs des plantes qui sont également les plus critiques pour l’élaboration des composantes de rendement et des critères de qualité grainière des grandes cultures. Les oléagineux tels que le colza et la caméline sont des espèces particulièrement impactées par le stress thermique, causant de fortes pertes de rendement et une diminution de la qua
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35

Braun, Joanne. "Box Turtles, Terrapene carolina, as Potential Seed Dispersers: Effects of Passage Through Digestive Tracts on Seed Germination." W&M ScholarWorks, 1985. https://scholarworks.wm.edu/etd/1539625298.

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36

Hallsson, Lára R. "Quantitative Trait Evolution in a Changing Environment in a Seed Beetle." Doctoral thesis, Uppsala universitet, Zooekologi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-159284.

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During the last decades the climate has been changing more rapidly than in the preceding periods. This is for instance characterized by an increase in temperature. Interestingly, such changes in the environment are not necessarily constant over time as they often show high levels of fluctuation. Organisms are exposed to these changes and respond to them and a recent theoretical model predicts that fluctuations in the environment are important for populations’ response to climate change. The aim of this thesis is to investigate how populations respond to a changing environment, including fluctu
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Buru, Joshua Comrade. "Comparative biology of two forms of an invasive vine, Dolichandra unguis-cati (L.) Lohmann (Bignoniaceae): implications for weed spread and biocontrol." Thesis, Queensland University of Technology, 2016. https://eprints.qut.edu.au/102084/1/Joshua%20Comrade_Buru_Thesis.pdf.

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This thesis is a comparative study of two distinct forms ('long pod' and 'short pod') of an invasive vine, cat’s claw creeper. The two forms have differing prevalence rates in Australia. The thesis examines important plant traits that could explain this variation in prevalence between the forms. The thesis covers seed biology, anatomical and growth traits, together with physiological traits in response to two levels of light, water and nutrients resources. In addition, the study assesses preferences of two bio-agents (insects) against the two forms of cat’s claw creeper to ascertain bio-contro
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Freewalt, Keith. "Creation of a High Density Soybean Linkage Map, QTL Mapping and the Effects of Marker Number, Population Size and Significance Threshold on Characterization of Quantitative Trait Loci." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1402656287.

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39

Bonnardeaux, Yumiko Graciela. "Seed dormancy in barley (Hordeum vulgare L.) : comparative genomics, quantitative trait loci analysis and molecular genetics." University of Western Australia. Faculty of Natural and Agricultural Sciences, 2008. http://theses.library.uwa.edu.au/adt-WU2009.0019.

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[Truncated abstract] Under prolonged wet and damp conditions, barley grain with low dormancy can germinate precociously, a condition known as preharvest sprouting that causes a number of detrimental effects in grain quality. In particular, preharvest sprouting renders the grain unsuitable for malting. The aim of this study was to take a genomics approach to identify and characterise candidate genes that could be linked to the control of seed dormancy in barley. This thesis developed a bioinformatic strategy that exploited the availability of gene sequences with functional evidence in the model
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40

Yesudas, Charles R. "Seed and leaf trait correlations and identification of underlying loci in soybean (Glycine max (L.) Merr.) /." Available to subscribers only, 2008. http://proquest.umi.com/pqdweb?did=1559850551&sid=1&Fmt=2&clientId=1509&RQT=309&VName=PQD.

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41

Pereira, Elise de Matos. "Estratégias de seleção e efeito de armazenamento de sementes em populações segregantes de soja /." Jaboticabal, 2016. http://hdl.handle.net/11449/141481.

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Orientador: Sandra Helena Unêda-Trevisoli<br>Coorientador: Antonio Orlando Di Mauro<br>Coorientador: Cibele Chalita Martins<br>Banca: Everton Luis Finoto<br>Banca: Ivana Marino Bárbaro Torneli<br>Banca: Rinaldo Cesar de Paula<br>Banca: Gustavo Vitti Môro<br>Resumo: O presente estudo foi realizado com os objetivos principais de: verificar as associações existentes entre caracteres agronômicos e caracteres relacionados à qualidade fisiológica de sementes de soja; determinar alterações fisiológicas e no teor de óleo em sementes de soja, ao longo do período de armazenamento, além de selecionar pro
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42

Liu, Jun. "Quantitative Trait Loci Controlling Sclerotinia Stem Rot Resistance and Seed Glucosinolate Content of Oilseed Rape (Brassica napus L.)." Australian Journal of Plant Science, 2016. http://hdl.handle.net/1993/31662.

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Canola/rapeseed (Brassica napus L.) is a major oilseed crop worldwide. However, its production is largely affected by the fungal disease Sclerotinia stem rot as well as seed glucosinolates. So far the genetic mechanisms controlling these two traits have been poorly understood. In the present study, three bi-parental doubled haploid B. napus populations M730, M692 and ZT were grown in either natural or artificial environments and genotyped using the Brassica 60K Infinium® SNPs and/or sequence related amplified polymorphisms. Three genetic linkage maps covered 2,597.7 cM, 2,474.1 cM and 1,731.6
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43

Bayer, Skylar (Skylar Rae). "Reproductive traits of pioneer gastropod species colonizing deep-see hydrothermal vents after an eruption." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/65300.

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Thesis (S.M.)--Joint Program in Biological Oceanography (Massachusetts Institute of Technology, Dept. of Biology; and the Woods Hole Oceanographic Institution), 2011.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 27-33).<br>The colonization dynamics and life histories of pioneer species are vital components in understanding the early succession of nascent hydrothermal vents. The reproductive ecology of pioneer species at deep-sea hydrothermal vents may provide insight into their dispersal, population connectivity, and ability to colonize after disturbance.
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44

Afsarigolshan, Maryam. "Source strength verification and quality assurance of sterile, pre-loaded iodine-125 seed trains used for prostate brachytehrapy." Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/46404.

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45

Jaramillo, Paul E. "Farmers' valuation and adoption of new genetically modified corn seeds nitrogen-fertilizer saving and drought tolerance traits /." [Gainesville, Fla.] : University of Florida, 2009. http://purl.fcla.edu/fcla/etd/UFE0024899.

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46

Cicek, Mine II. "Genetic Analysis of Quantitative Trait Loci Associated with Seed Sucrose Content Using Molecular Markers in an Interspecific Glycine Cross." Thesis, Virginia Tech, 1997. http://hdl.handle.net/10919/36506.

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Sucrose content is one of the important seed quality traits in soybean, especially for oriental soyfood production. However, little genetic information is available on this quantitative trait yet. A previous study was conducted on seed sucrose content of soybean using a population of F2-derived lines from an interspecific cross between an adapted high-sucrose (8.3%) G. max breeding line (V71-370) and a low sucrose (1.6%) G. soja plant introduction (PI407162). Nineteen marker loci, mapping to seven linkage groups (A1, A2, E, F, L1, I, and M), were significantly associated with seed sucrose
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Cardinal-McTeague, Warren Martin. "The Systematics and Evolution of Euphorbiaceae Tribe Plukenetieae." Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/38206.

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The aim of this dissertation is to study the systematics and evolution of Euphorbiaceae vines (tribe Plukenetieae), a diverse pantropical lineage (~365 species and 18 genera) composed of three morphologically distinct subtribes, Dalechampiinae, Plukenetiinae, and Tragiinae. Through the course of my research I largely resolved the evolutionary history of Plukenetieae and made broader contributions to the study of pollen and seed evolution, pantropical biogeography, and plant diversification. In chapter two I developed the first well-sampled molecular phylogeny for Plukenetieae (154 terminals, ~
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Scott, Kelsey L. "Studies in the Management of Pythium Seed and Root Rot of Soybean: Efficacy of Fungicide Seed Treatments, Screening Germplasm for Resistance, and Comparison of Quantitative Disease Resistance Loci to Three Species of Pythium and Phytophthora sojae." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1524147394255409.

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49

Morgan, Megan Jayne. "Identification of molecular-genetic determinants of quality traits of tomato fruit." Thesis, University of Oxford, 2011. http://ora.ox.ac.uk/objects/uuid:662d8b1e-70cf-44fb-9ed3-46dcacc39bad.

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Tomato is an important food crop and a model for fleshy fruit development. The process of fruit ripening involves changes in chemical composition and in particular the accumulation of sugars, organic, amino acids and carotenes. The research described in this thesis aimed to identify key regulatory aspects associated with the accumulation of the major acids in tomato fruit by analysis of introgression lines resulting from a cross between a cultivated variety, Solanum lycopersicum, and a wild progenitor species, Solanum pennellii. Line 2-5 showed increases in citrate, malate, aspartate and gluta
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50

Shaw, Sarah. "Traces of empire, seeds of desire : Africa and women in the novels of Naomi Mitchison." Thesis, University of Essex, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.395948.

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