一、落花落果原因 (一)生理因素 仁用杏含有大比例的退化花,有的品种存在自花不结实或杂交不亲合现象;另外仁用杏花量大,耗费营养多,部分花得不到足够的养分易脱落,降低结实率。 (二)气候因素 仁用杏开花早,花期易受寒流、霜冻、大风、干旱等恶劣气候影响,造成严重落花落果。 一 提高坐果率措施 First, the reasons for falling flowers (A) physiological factors Apricot contains a large proportion of degenerated flowers, and some varieties of self-fertility or hybrid incompatibility; In addition, large amount of apricot flower, consume more nutrients, part of spend Less than enough nutrients to fall off, reduce the seed setting rate. (B) of the climate factors apricot early flowering, flowering vulnerable to cold, frost, wind, drought and other harsh climates, causing serious dropfalls. A measure to improve fruit set