Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"large seed"”.
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The effect of sowing date, sowing depth and seed size on seedling emergence of wheat: A dissertation submitted in partial fulfilment of the requirements for the degree of Bachelor of Agricultural Science (Hons.) in the University of Canterbury
… investigating the effects of sowing time, seed size and time of sowing of Rongotea wheat, variation in time of sowing between early May and late June did not affect the total population established. It is suggested that early May sowing gives higher grain yields due to a greater number of …
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The ecology of Brassica napus
… cultivars are strong competitors and produce large seed yields, however seed shattering during harvest creates large volunteer seedbanks. The segregation of hybrid trait and changes in variability of traits may allow successive generations of volunteer B. napus weeds to display different …
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PATTERNS OF SEEDFALL AND SEEDLING ESTABLISHMENT IN AN EAST TEXAS RIVER FLOODPLAIN FOREST: THE CONTRIBUTION OF SEEDLING DYNAMICS TO SPECIES COEXISTENCE (PLANT DEMOGRAPHY, DISPERSAL, TREE REGENERATION, SURVIVORSHIP, MORTALITY)
I investigated spatial and temporal patterns of seed deposition, seedling appearance, survivorship, and growth in an East Texas river floodplain forest from 1980 through 1984, and estimated the importance of several factors including flooding, drought, shading, insect herbivory, and fungal attack …
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Preserving Biodiversity for a Climate Change Future: A Resilience Assessment of Three Bay Area Species--Adenostoma fasciculatum (Chamise), Arctostaphylos canescens (Hoary Manzanita), and Arctostaphylos virgata (Marin Manzanita)
… tolerance of climate change factors and small seed size. This species will likely spread throughout the Bay Area and become increasingly dominant as a result. <em>Arctostaphylos canescens </em>was determined to be the most vulnerable due to projected heat stress, likely drought stress, and …
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The Spatial and Temporal Ecology of Seed Dispersal by Gorillas in Lopé National Park, Gabon: Linking Patterns of Disperser Behavior and Recruitment in an Afrotropical Forest
… <italic>Gorilla g. gorilla</italic>) consume large quantities of fruit and disperse a great number of seeds. The majority these seeds are dispersed intact and viable in the dung. Dung is often deposited around the rim of a night nest or at a nest-site. Gorillas often construct nests in areas …
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Assessment of farmer preferences, constraints and angro-morphological variation among Bambara groundnut (Vigna subterranea (L.) Verdc.) accessions as a basis for seed yield selection index
… uses, preferences, crop improvement status, seed source, and production challenges. Chi-square test showed significant differences among farmers’ preferences (P ≤ 0.05) and crop improvement status (P ≤ 0.05). The results also showed that farmers faced challenges, including susceptibility to …
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Fate of Eucalyptus marginata seed from canopy-store to emergence in the northern jarrah forests of Western Australia: Research to help improve regeneration following shelterwood treatment
The establishment of seedling regeneration is a key process in and indicator of ecologically sustainable forest management. The availability of seed and the creation of a suitable seedbed are recognised as important factors limiting seedling recruitment. A silvicultural method commonly used across …
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The phylogenetics and evolution of Africa's Larks (Alaudidae)
… as strategies to adapt to a diet including a large seed component. Desert specialist larks are either resident insectivores or locally nomadic/partially migrant seed-eaters that exploit temporarily abundant resources. The thesis develops a new classification for the Alaudidae (Chapters 2 & 7) …
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The phylogenetics and evolution of Africa's Larks (Alaudidae)
… as strategies to adapt to a diet including a large seed component. Desert specialist larks are either resident insectivores or locally nomadic/partially migrant seed-eaters that exploit temporarily abundant resources. The thesis develops a new classification for the Alaudidae (Chapters 2 & 7) …