黄瓜一般应该是上下比较均匀的圆棒形,但在生产中常常出现尖嘴、大肚、细腰、弯曲等畸形瓜,这不仅影响产量,而且严重降低商品质量,给广大菜农造成很大损失。 一、发生原因 (1)尖嘴瓜多产生在连续高温干旱的温室里。植株生长势弱,营养不良或受蚜虫、霜霉病等为害严 Cucumber should generally be a round bar with a uniform upper and lower profile. However, deformed melons such as beak, belly, slender waist and bending often appear in production, which not only affects the yield but also seriously reduces the quality of the products and causes great losses to the majority of farmers . First, the reasons (1) Melon produced in a continuous hot and humid greenhouses. Plant growth is weak, malnutrition or by aphids, downy mildew and other damage