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Sources of Resistance to Race 2WF Powdery Mildew in U.S. Watermelon Plant Introductions

文献类型： 外文期刊

作者： Zhang, Haiying 1 ; Guo, Shaogui 1 ; Gong, Guoyi 1 ; Ren, Yi 1 ; Davis, Angela R. 2 ; Xu, Yong 1 ;

作者机构： 1.Beijing Acad Agr & Forestry Sci, Natl Engn Res Ctr Vegetables, Beijing 100097, Peoples R China

2.ARS, Wes Watkins Agr Res Lab, USDA, Lane, OK 74555 USA

关键词： fungicides: pesticide;fungicideBeijing: China;Asia;Palearctic region;synonymy;crop yield;disease resistance

期刊名称：HORTSCIENCE （ 影响因子：1.455； 五年影响因子：1.617 ）

ISSN：

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收录情况： SCI

摘要： Powdery mildew of cucurbits, incited by Podosphaera xanthii (Castagne) Braun & Shishkoff (syn. Sphaerotheca fuliginea auct. p.p.), is an economically important foliar disease. which is now common in watermelon [Citrullus lanatus (Thunb.) Mastum. & Nakai]. This disease occurs in all watermelon-growing areas and can reduce yields by up to 30%. Finding and breeding for resistance to this disease is important to reduce dependence on fungicides and to use in combination with fungicides to limit the spread of fungicide-resistant P. xanthii. This is the first English report that race 2WF of P. xanthii can infect watermelon. It is the prevalent race of watermelon powdery mildew in Beijing.

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