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 20 of 611 for “"seedling"”.
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Cytoplasmic Differentiation in Seedling Tissue
Made available in DSpace on 2014-12-10T17:12:23Z (GMT). No. of bitstreams: 1 6507085.pdf: 8745804 bytes, checksum: c1f5393072c037481641825801d58316 (MD5) Previous issue date: 1965
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The Heritability of Seedling Stage Drought Resistance in Rape and Its Relationship to Seedling Root Morphology
This study examines the heritability of seedling-stage drought resistance in rape (Brassica campestris L.) and its association with seedling root morphology. The heritabilities of seedling stage drought resistance, based on percentage survival data from 40 half-sib families grown under high and low …
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Subalpine Forest Tree Seedling Response to Drought
… dynamics with climate change, especially at the seedling stage given their role in shaping forest structure. We used precipitation reduction shelters to mimic drought for subalpine conifer seedlings (<em>A. lasiocarpa</em> and <em>P. engelmannii</em>) in the Rocky Mountains and compared …
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Swelling and Contraction of Corn Seedling Mitochondria
Made available in DSpace on 2014-12-10T17:12:24Z (GMT). No. of bitstreams: 1 6507167.pdf: 4696129 bytes, checksum: 2d59178d8223815902ee65c766908218 (MD5) Previous issue date: 1965
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Phosphate nutrition in the Ricinus communis L. seedling
… their functions during germination and growth of seedlings is still lacking. During germination Pi stored in the endosperm is mobilized and transported to growing organs of seedlings, thus a phosphate transporters and acid phosphatases are expected to be involved in these processes. The aim of …
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Generalizable Canola Seedling Detection in Aerial Field Imagery
… by manually counting the number of emerged seedlings at various field locations. Due to the high amount of labour involved, only small areas of a field can be counted with this approach. In recent years, a less labour-intensive, higher-throughput approach to plant counting has been proposed. …
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Seed and seedling ecology of four Agulhas Proteaceae
… but limestone species showed greater seedling mortality on the transplanted colluvial sands than limestone. There were also greater relative growth rates of seedlings on their own soil than counterparts on transplanted soil.
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Development of a Greenhouse Tobacco Seedling Performance Index
… substantial differences in uniformity of early seedling growth and spiral root incidence that impact the number of usable transplants. A seedling performance index (SPI) was developed to quantitatively describe greenhouse tobacco seedling performance. The 14-d emergence, relative leaf area …
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CHARACTERIZATION OF SOD-INDUCED ALFALFA SEEDLING INJURY (ALLELOPATHY, ANAEROBIOSIS)
… greenhouse studies were conducted to examine the seedling vigor of sod-sown alfalfa (Medicago sativa L.).</p><p>Seedlings grown in tilled soil had more dry matter, were taller, and had longer internodes than seedlings in sod. Node number and plant density were reduced in some experiments. Seedling …
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Genetics of seedling stage low temperature tolerance of rice
… growing conditions, and low temperatures at the seedling stage can result in a wide range of negative effects. Due to global climate change, sudden episodes of low temperature now frequently affect many areas of Asia where such stresses to rice growth were previously rare. Therefore, the …
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The Integration of Metabolite and Hormone Signalling Drives Seedling Development
… pathways that interact with sugars during seedling development, a chemical screen was performed in search of compounds that modify responses to sucrose. This screen identified an interaction between the folate inhibitor sulfamethoxazole (SMX) and sucrose that resulted in changes to auxin …
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Biological and chemical control of fungal seedling diseases of cowpea
… can cause damage to the crop at all stages. Seedling diseases caused by pathogens such as Rhizoctonia solani Fusarium solani and Pythium spp. affect cowpea and result in low yields especially in rural areas where there are few or no control measures against these pathogens. This research …
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ASSESSMENT OF WHITEBARK PINE SEEDLING SURVIVAL FOR ROCKY MOUNTAIN PLANTINGS
… efforts include the planting of whitebark pine seedlings and over 200,000 seedlings have been planted on National Forest, BLM and National Park service lands. In this Rocky Mountain (RM) study, select whitebark pine plantations were surveyed and seedling survival rates and ecological data …
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ASSESSMENT OF WHITEBARK PINE SEEDLING SURVIVAL FOR ROCKY MOUNTAIN PLANTINGS
… efforts include the planting of whitebark pine seedlings and over 200,000 seedlings have been planted on National Forest, BLM and National Park service lands. In this Rocky Mountain (RM) study, select whitebark pine plantations were surveyed and seedling survival rates and ecological data …
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The Effect of Butylate on Seed Germination and Seedling Development
Made available in DSpace on 2014-12-12T00:17:49Z (GMT). No. of bitstreams: 1 7212406.pdf: 3660479 bytes, checksum: 6c1491ed829d8c73e17edb790811a9cf (MD5) Previous issue date: 1971
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Cell cycle parameters and sweet corn emergence and seedling vigor
… are associated with reduced emergence and poor seedling vigor. Shrunken2 genotypes with known differences for field emergence and vigor were used to investigate the contribution of seedling cell division to emergence and seedling growth. Variation among genotypes was observed for all of the cell …
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The influence of rainfall variability on savanna tree seedling establishment
… the rainfall requirements necessary for tree seedling survival of different savanna species in the first year of growth. Results from a field drought experiment showed that dry season survival for seedlings of Acacia nigrescens and Philenaptera vialacea was not related to wet season length. …
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Maternal environment affects adaptive seed and seedling traits in Elymus elymoides
… output for maternal plants, along with seed and seedling traits of progeny, asking how maternal environment affected a variety of trait responses. Traits measured included seed mass, seed fill, seed coat surface area (SA), endosperm SA, seed coat eccentricity index (EI), endosperm EI, endosperm …
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