提高西瓜坐瓜率措施

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1 调节播种期:根据当地的气候条件,适当提前或延后播种,使坐瓜期避开阴雨季节,以利授粉受精,从而提高坐瓜率。 2 人工辅助授粉:主蔓第二、三雌花开放期间,在盛花期晴天的早晨,采下雄花剥去花瓣用花药轻轻涂抹雌花柱头;雨天,雌花开放前用小塑料筒或纸袋罩花防雨,进行人工授粉。前者可提高坐瓜率10%以上,后者可提高坐瓜率1倍以上。 1 adjust the sowing period: According to the local climatic conditions, appropriate early or delayed sowing, so take the melon season to avoid the rainy season, to facilitate pollination fertilization, thereby increasing the rate of sit. 2 Artificial secondary pollination: the main vine second and third female flowers during the open, sunny day in full bloom flowering days, taken off the male flowers stripped of the petals with anthers lightly smear the female stigma; rainy days, before the female flowers open with a small plastic tube or paper bag cover Rain, artificial pollination. The former can increase the rate of sitting more than 10%, which can increase the rate of sitting more than 1 times.
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