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1形成化瓜的原因及防治化瓜就是黄瓜雌花开放后子房不膨大,或发育中的瓜条生长停止,萎蔫变黄脱落。化瓜是黄瓜栽培中普遍存在的现象,尤以前期最为严重。造成化瓜的原因很多。(1)品种不同,单性结实能力强弱不一,化瓜程度不同,如长春密刺单性结实力强,苗期内源激素多,化瓜少。(2)环境条件不适也能引起化瓜。如昼温高于35℃,夜温超过20℃,光合积累少,呼吸消耗多,瓜蔓明显
The formation of a melon melon causes and prevention melon cucumber is open after the female flowers ovary does not swollen, or the development of the growth of the melon stop, wilt turn yellow off. Melon is a common phenomenon in the cultivation of cucumbers, especially the most serious earlier. Cause melon for many reasons. (1) Different varieties, the ability of unisexual fruiting varies, the degree of melon is different, for example, the density of unicaceous parthenocarpic of Changchun is strong, the endogenous hormones are more in the seedling stage, and the melon is less. (2) Discomfort caused by environmental conditions can also cause melon. Such as day temperature above 35 ℃, night temperature over 20 ℃, less accumulated photosynthesis, respiratory consumption, melon obvious