Results 41 to 50 of about 2,486 (198)

Climate change and the occurrence of downy mildew in Brazilian grapevines [PDF]

open access: yesPesquisa Agropecuária Brasileira, 2017
: The objective of this work was to evaluate the potential impact of climate change on the occurrence of grapevine downy mildew in Brazil. Seedlings containing four to six leaves were sprayed with a sporangia suspension containing 105 sporangia per ...
Francislene Angelotti   +5 more
doaj   +1 more source

The effect of Saccharomyces cerevisiae on antioxidant system of grape leaves infected by downy mildew

open access: yesBIO Web of Conferences, 2020
In this article, results of the comparative analysis and assessment of resistance of two grape cultivars Vostorg and Muscat blanc against downy mildew disease (Plasmopara viticola) with or without the symbiote Saccharomyces cerevisiae (vine yeast) were ...
Mishko Alisa, Lutsky Eugene
doaj   +1 more source

Bacillus megaterium BMJBN02 induces the resistance of grapevine against downy mildew [PDF]

open access: yes, 2022
Grape downy mildew caused by Plasmopara viticola is one of the most destructive diseases of grapes. All grape cultivars are susceptible to P. viticola. However, the resistance of grape plants could be induced in plant defense with some help of microbes ...
Zhou, Hongzi   +5 more
core   +2 more sources

Downy mildew is able to carry out its sexual cycle on resistant grape varieties

open access: yesIVES Technical Reviews, 2020
Previous studies have shown that new resistant grape cultivars limit epidemics caused by asexual reproduction of downy mildew. However, until now, there was a lack of knowledge on the sexual phase of the pathogen.
Lionel Delbac   +3 more
doaj   +1 more source

An annotated image dataset of downy mildew symptoms on Merlot grape variety

open access: yesData in Brief, 2021
This article introduces a dataset of high-resolution colour images of grapevines. It contains 99 images acquired in the vineyard from a cruising tractor. Each image includes the full foliage of a grapevine plant. These images display a diverse range of symptoms caused by the grapevine downy mildew (Plasmopara viticola), a major fungal disease.
Abdelghafour, Florent   +4 more
openaire   +4 more sources

Distinctive Symptoms and Signs of Downy Mildew on Cold-Climate Wine Grape Cultivars [PDF]

open access: yes, 2017
Downy mildew, caused Plasmopara viticola, is a major disease affecting grape production worldwide. While the symptoms and signs of downy mildew on European wine grapes (Vitis vinifera) are well documented, minimal information is available regarding the ...
David S. Jones, Patricia S. McManus
core   +1 more source

Use of Olive Processing Waste to Support Vine Protection [PDF]

open access: yesBIO Web of Conferences
The olive oil production chain generates large quantities of waste with a high polyphenolic content that can be valued for protection against fungal diseases in viticulture.
Zombardo Alessandra   +3 more
doaj   +1 more source

Seasonal Development of Ontogenic Resistance to Downy Mildew in Grape Berries and Rachises [PDF]

open access: yesPhytopathology®, 2005
Clusters of Vitis vinifera and V. labrusca are reported to become resistant to Plasmopara viticola at stages of development ranging from 1 to 6 weeks postbloom. It has been suggested that resistance is associated with loss of the infection court as stomata are converted to lenticels, but the time of onset, cultivar variation, and seasonal variation in
Megan M, Kennelly   +4 more
openaire   +2 more sources

Evaluation of Grape Germplasm for Downy Mildew Resistance

open access: yesJournal of the American Pomological Society, 1999
Grape accessions from the University of Arkansas table grape collection at the Fruit Substation, Clarksville, Ark., and the USDA-ARS grape germplasm repositories in Geneva, N.Y., and Davis, Cal. were evaluated for downy mildew resistance. Evaluations were done in two trials, in a fungicide-free vineyard, established in 1993 and 1994 at Fayetteville ...
Maurus V. Brown   +3 more
openaire   +1 more source

Screening and Validation of SSR Molecular Markers for Identification of Downy Mildew Resistance in Intraspecific Hybrid F1 Progeny (V. vinifera)

open access: yesHorticulturae, 2022
Downy mildew is a major disease that severely restricts the healthy and sustainable development of the global grape and wine industry, so there is significant interest in breeding high-quality disease-resistant varieties. In this study, hybridization was
Zhilei Wang   +9 more
doaj   +1 more source

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