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- W2362774791 abstract "Grape downy mildew was investigated under rain-shelter and open air cultivation conditions respectively in Shenyang area, 2012. There was great difference among the incidence investigation on tested grape varieties under the same cultivation condition by natural infection. The earliest incidence and highest disease index of grape downy mildew was Thompsons seedless,followed by Red-globe and Kyoho. Logistic model could well reflect the temporal dynamic of grape downy mildew under rainshelter and open air cultivation conditions. Under open air cultivation, exponential phase was from May 1st to July 17th, logistic phase was from July 17th to August 14th. decline phase was after August 14th, Under rain-shelter cultivation, exponential phase was from May 1st to August 14th, logistic phase was from August 14th to September 11th, decline phase was after September11th. Exponential phase was the most effective date for chemical control. Rain-shelter cultivation could significantly put off exponential phase and decline phase of grape downy mildew about 28d. The open air cultivation could also reduce disease index.The velocities of disease index on grape downy mildew were different among the tested grape varieties under the same cultivation condition. Average highest velocity under rain-shelter cultivation condition was 2.0871·d-1, much lower than 4.5774·d-1under open air cultivation condition. Relative humidity had remarkable effect on the disease development, worse with higher humidity." @default.
- W2362774791 created "2016-06-24" @default.
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- W2362774791 date "2013-01-01" @default.
- W2362774791 modified "2023-09-26" @default.
- W2362774791 title "Effects of Rain-Shelter Cultivation on the Occurrence and Epidemic of Grape Downy Mildew" @default.
- W2362774791 hasPublicationYear "2013" @default.
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