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Showing 1 to 13 of 13 for “"Vitis spp."”.
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Caracterização estrutural e expressão diferencial de defensinas e TLPS (Thaumatin-Like Proteins) em Vitis spp. sob estresse biótico
A videira (Vitis vinifera) possui grande representatividade na economia mundial. No entanto, esta espécie vem sofrendo com a influência de condições ambientais adversas, especialmente pelo ataque de patógenos, impactando sobre a produtividade da cultura. Dessa forma, estudos baseados nos mecanismos …
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Ontogenic Resistance To Uncinula Necator In Developing Berries Of Grapevine (Vitis Spp.): Using Germplasm Diversity To Study The Mechanism
Berries of several grapevine (Vitis spp.) species develop resistance to the powdery mildew fungus Uncinula necator, as they age, becoming resistant within approximately two weeks after bloom (ontogenic resistance). Ontogenic resistance is of interest to uncover new avenues of disease management and …
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Advancing Sustainable Grape Downy Mildew Management: Biopesticide Trials and Risk Assessment System
… viticola, significantly damages grape crops (Vitis spp.), reducing yields by up to 75% in unprotected vineyards. The Eastern US faces limited fungicide options due to resistance development and potential legal restrictions on EBDC and captan. The first study evaluated various biopesticides and …
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Biological Control Agent Rhizobium vitis, ARK-1 Reduces Incidence and Severity of Grapevine Crown Gall in Virginia
Crown gall of grapevine (Vitis spp.) is a serious and economically important disease caused by the bacterial pathogen Rhizobium vitis, which transforms healthy plant cell genomes leading to hypertrophic and hyperplastic growth of affected plant cells. Recent studies have documented a strong …
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Causal factors of Macrophoma rot observed on Petit Manseng grapes
… rot is a general term for fruit rots of Vitis spp. caused by the fungus Neofusicoccum ribis (syn. Botryosphaeria ribis) or closely related or renamed taxa, including Botryosphaeria dothidea. While mainly observed as a fruit pathogen of muscadine grape, the disease has recently been …
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Effect of Protective Covers Against Biotic and Abiotic Disorders for Grape Production in Virginia
Grapes (Vitis spp.), globally cultivated for wine and other grape-based products, are susceptible to various diseases, pests, and disorders. These challenges are particularly pervasive in Virginia and viticultural regions in similar climates. Thus, growers routinely use insecticides and fungicides …
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Assessment of Vineyard Nitrogen Management upon Grape Chemistry
… sprayed at a Sauvignon blanc and Petit Manseng (Vitis vinifera L.) vineyard. Perennial White and Crimson clover as well as foliar urea applications at v ér a i s o n were utilized at a Vidal blanc (Vitis spp.) site. Foliar urea was effective at significantly increasing YANs in all experiments …
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Evaluation of Nitrogen Management Schemes upon Vine Performance in Cover Cropped Vineyards
… comprised of Petit Manseng and Sauvignon blanc (Vitis vinifera L.). Perennial White and Crimson clover cover crops and foliar urea applications were also used in a Vidal blanc (Vitis spp.) vineyard. Treatments were imposed in the Sauvignon blanc vineyard for five years. The Petit Manseng and …
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Grapevine Fanleaf Virus: Biology, Biotechnology And Resistance
… sources of resistance to GFLV exist within Vitis spp., but certain herbaceous hosts such as N. tabacum (tobacco) are resistant. This author used tobacco, its wild relatives, and hybrids between tobacco and wild relatives to evaluate the genomic and physiological basis of resistance. …
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Evaluation of Nitrogen Management Schemes in Cover Cropped Vineyards
… comprised of Petit Manseng and Sauvignon blanc (Vitis vinifera L.). Perennial White and Crimson clover cover crops and foliar urea applications were also used in a Vidal blanc (Vitis spp.) vineyard. Treatments were imposed in the Sauvignon blanc vineyard for five years. The Petit Manseng and …
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Dissecting the genetic, physiological and metabolic mechanisms of grapevine resilience to heat stress
Grapevine (Vitis spp.) is one of the most widely cultivated perennial fruit crops in the world and its economic relevance is mainly related to wine production. In recent years, the increased frequency of extreme phenomena such as heat waves has been acknowledged as one of the most significant …
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Genome editing for engineering resilience to climate changes in grapevine
… knock-out (KO) lines of the genotype Kober 5BB (Vitis berlandieri x Vitis riparia) were generated using CRISPR/Cas9 technology, and their root morphological traits were evaluated under both well water and water stress conditions, in conjunction with shoot physiological characterization. A …