黄瓜在保护地和露地栽培中,枯萎病、霜霉病和炭疽病都是普遍发生的主要病害,常年可造成黄瓜减产30～50%,严重者减产高达80～90%以上。国内外研究证明,黄瓜品种的丰产性往往取决于自身的抗病性,因而选育多抗新品种是防治黄瓜主要病害的经。济有效途径。“七五”期间,我们进行了 Cucumber in protected fields and open field cultivation, blight, downy mildew and anthracnose are the most common diseases, perennial can cause cucumber cut 30 to 50%, severe cut as much as 80 to 90%. Domestic and foreign studies have shown that the high yield of cucumber varieties often depend on their own disease resistance, and thus breeding new varieties of anti-cucumber is the main disease control by. Economic effective way. During the “Seventh Five-Year Plan”, we conducted