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 8 of 8 for “"leaf disease"”.
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Basidiospore infection of Austropuccinia psidii and resistance ofopen-pollinated Eucalyptus globulus families to rust and Teratosphaeria Leaf Disease
… by Austropuccinia psidii and/or Teratosphaeria Leaf Disease (TLD), caused by Teratosphaeria nubilosa. Planting resistant materials is the most efficient strategy to control both diseases. Successful control requires the availability of resistance sources, a comprehensive understanding of …
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Incorporation of Exotic Germplasm Into Adapted Maize Synthetics to Improve Grain Yield and Multiple Leaf Blight Resistance (Selection Response, Zea Mays, Quantitative Genetics, Corn)
… se were evaluated for grain yield and aggregate leaf disease resistance. One cycle of divergent S(,1) family selection for each trait was conducted in the adapted, BC(,1)F(,2), F(,2), and exotic populations for three sets of crosses. Several suggested estimators of favorable alleles (i.e. …
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Application of CNN-gcForestCS to cassava leaf image classification
… by pathogenic infection with cassava mosaic disease (CMD) posing the greatest threat to cassava farmers in Africa and Asia. Given that developing nations are estimated to be hit hardest by climate change and projected to have the largest population increases in coming decades, optimisation of …
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Chemical and biological control of silvery threadmoss on creeping bentgrass putting greens
… evaluate two fungal organisms observed to cause disease of silvery threadmoss on putting greens in efforts to develop a biological control. The organisms were identified by morphology and ITS sequence as Alternaria sp. and Sclerotium rolfsii. Alternaria sp. causes a leaf disease of silvery …
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Common Accommodation Mechanisms for Mutualistic and Detrimental Fungi in Oryza sativa (Rice) Roots
… a major causative agent of the rice blast (leaf) disease. M. oryzae can also invade rice roots with simple non-melanised hyphopodia formed on the rice root surface, very similar to R. irregularis. This similarity in behaviour has raised questions whether the biotrophic pathogen adopts an …
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Molecular detection and identification of phytoplasmas in sugarcane in Hawaii, Thailand, Cuba and Near East
The Yellow leaf syndrome (YLS) had been first detected and described in Hawaiian sugarcane plantations. The polerovirus Sugarcane yellow leaf virus was identified as a causal agent of the syndrome; however there was no strict correlation between the degree of symptom expression and the virus titre. …
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Genetic characterization of a dominant susceptible Rpp1 allele and analysis of quantitative resistance to Asian soybean rust
… Phakopsora pachyrhizi, is a yield-threatening disease in soybean growing countries (Hartman et al. 2012; Godoy et al. 2016). The yield loss can reach as high as 80% if the conditions are conducive, and no control measures are taken (Yorinori et al. 2005; Walker et al. 2011; Hartman, Miles, and …
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Evaluation of additive and nonadditive genetic variation in elite maize germplasm for root, shoot, and ear characteristics
… ear size, increased nitrogen use efficiency, disease resistance, stalk and root strength, as well as generally improved performance under a range of biotic and abiotic stresses. Ten proprietary and two public inbreds were evaluated with a generation means design emanating from the diallel …