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 10 of 10 for “"seed transmission"”.
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Inheritance of Resistance to Soybean Mosaic Virus in Soybeans and Studies on Seed Transmission
Five tropically adapted soybean (Glycine max (L.) Merrill) lines that varied in their reactions to inoculation with seven strains of soybean mosaic virus (SMV) were used in a study to determine the inheritance of resistance to SMV. F(,1), F(,2), and F(,3) populations were inoculated with SMV …
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Incidence and Management of Seed Transmission of Cylindrocladium Black Rot of Peanut in Virginia
Seed transmission of <i>Cylindrocladium parasiticum</i> was investigated as a possible explanation for the higher-than-expected incidence of Cylindrocladium black rot (CBR) of peanut in fields fumigated with metam sodium. Sixty-three commercial seed lots from Virginia production fields were …
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Maize Dwarf Mosaic Virus in Zea Mays L.: Inheritance of Resistance, Yield Loss, Serology, and Seed Transmission
The effect on sweet corn yield of inoculation with maize dwarf mosaic virus (MDMV) at the three-leaf, eight-leaf, or just prior to silking was examined. Early infection delayed maturity, reduced yield and plant height. Little difference was found between the late inoculation and the inoculated …
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Tracking Tobacco Mosaic Virus Infection from Infected Seeds to Seedlings Confirms Seed Transmission in Tobacco (Nicotiana tabacum L.)
… whether this economically significant virus is seedborne or seed transmitted. The objective of this study is to track TMV infection from infected seeds to seedlings to determine the percentage of seed transmission. This experiment used three pods from three different TMV infected cultivar K 326 …
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Influence of Seed Treatment on Tobacco Mosaic Virus Incidence in Tobacco Seedlings and Virus Distribution in Greenhouse Transplant Production
… has been studied for over one hundred years. Seedlings, seed coats, and nutrient solution were assayed for the presence of the virus and seed treatments were tested on seeds. Double antibody sandwich enzyme-linked immunosorbent assay (DAS ELISA) and biological local lesion assay data were …
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Genomic and genetic resource for soybean disease resistance improvement
… significant reductions in soybean yield and seed quality. In North America, seedborne infections are the primary sources of inoculum for SMV infections. Therefore, host-plant resistance to SMV seed transmission provides a means to limit the impacts of SMV on soybean production. In this study, …
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The epidemiology and management of fungal- and nonpersistent aphid-borne plant viruses in a Mediterranean type climate
… Cadiz, and V. sativus cv. Languedoc, and to Pea seedborne mosaic virus (PSbMV) in all accessions and varieties of Cicer arietinum and L. culinaris and some of L. sativus and most pasture legumes tested. No sources of extreme resistance to Carrot virus Y (CarVY) was found to carrot germplasm. The …
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Role of virus genes in seed and aphid transmission and development of a virus-induced gene silencing system to study seed development in soybean
… and Tobacco streak virus (TSV) are two important seed transmitted virus that infect soybean. SMV is a member of the family Potyviridae genus Potyvirus, and is transmitted by seed and aphids in soybean. The symptoms of SMV infection on soybean typically include mosaic and curling of leaves, reduced …
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Quantitative analysis of individual flue-cured tobacco seed tissues reveals Tobacco mosaic virus infection in embryos
… have been associated with contaminated seeds with the seed coat being the source of virus. Thus, TMV transmission is said to be seedborne (as opposed to true seed transmission where the embryo is infected). The objective of this study was to identify TMV concentrations in the three …
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Factores que determinan la virulencia del virus del mosaico del pepino (CMV) en Arabidopsis thaliana
… within-host multiplication and between-host transmission. The effect of tolerance mechanisms and population density, two host factors, on virulence evolution was also analysed. A commonly accepted hypothesis explaining why parasites are virulent is that virulence is an unavoidable consequence …