温室黄瓜栽培容易出现花打顶现象，特征是植株顶端分化出多个雌花，生长点不再生长和伸长而使蔓茎突然停止生长，形成自封顶，不再有新叶、新梢长出。如不及时采取补救措施，植株会很快衰老死亡。1．预防：提早育苗．使幼苗期处于深秋的较高气温条件下，特别是夜温不应低于13℃ Greenhouse cucumber cultivation is prone to the phenomenon of flower topping, characterized by the top of the plant differentiated into a plurality of female flowers, the growth point is no longer growth and elongation of the stems suddenly stop growing to form a self-capped, no longer have new leaves, shoots grow. If the remedy is not taken promptly, the plants will soon die of aging. 1. Prevention: early nursery. The late seedling stage in the higher temperature conditions, especially the night temperature should not be lower than 13 ℃