论文部分内容阅读
露地支架冬瓜在福建省上杭县栽培历史悠久。冬瓜枯萎病是冬瓜产区主要病害之一 ,呈逐年加重趋势 ,常年在 4～ 5月春雨至梅雨季节发病 ,给瓜农造成巨大损失。1 症状从幼苗到生长后期都能发病 ,以结瓜期最为严重。幼苗发病 ,幼茎基部变褐缢缩 ,后子叶萎蔫下垂。成株发病茎基部缢
Open-bracket winter melon cultivation in Shanghang County, Fujian Province has a long history. Wither wilt is one of the main diseases in the winter melon producing area, showing a trend of increasing year by year. It occurs from April to May in the spring rainy season to the rainy season and causes great losses to farmers. 1 symptoms from the seedlings to the late growth stage can be the most serious melon period. Emergence of seedlings, young stems base brown and shrunk, cotyledons after sagging. Adult plant stem base 缢