Temperature, overcast and rainy days, variety and cultivation condition can exert influence on the emergence of the disease.
温度、阴雨天气、品种、耕作栽培条件等对该病的发生产生影响。
The results of research showed that the net photosynthetic rate decreased under (overcast) and rainy days and that would increase when it was cleared up.
结果表明：连续阴雨环境使葡萄叶片净光合速率下降，转晴后净光合速率上升。
The results of research showed that the net photosynthetic rate decreased under (overcast) and rainy days and that would increase when it was cleared up.
结果表明：连续阴雨环境使葡萄叶片净光合速率下降，转晴后净光合速率上升。
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