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当赤霉素 A_(4+7)+6苯甲基氨基嘌呤(GA_(4+7)+BA)采用微滴施用到苹果花萼或花托表面时,果型指数增加到最大值,GA_(4+7)+BA 从花周围各部分或短枝叶片移动到花托是有限制的,以25～600ppm(0.625～15μgGA_(4+7)+BA/花)的 GA_(4+7)+BA 的处理影响了座果率或增加了果重。果形指数的增加是由于果实长度的增加和果实直径的减少的综合影响,果实直径和果实重量的减少归因于种子数目的减少。
When gibberellin A_ (4 + 7) +6 benzylaminopurine (GA_ (4 + 7) + BA) was applied to apple calyx or torus surface, the fruit type index increased to the maximum, +7) + BA is limited from moving around parts of the flower or spur leaf to the receptacle, with GA 4 + 7 BA + 25-600 ppm (0.625-15 μgGA 4 + 7 BA + flower) Treatment affected the fruit rate or increased fruit weight. The increase in fruit shape index is due to the combined effects of an increase in fruit length and a decrease in fruit diameter, which is attributed to a reduction in the number of seeds.