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在采收前和采收后的杨梅花芽生理分化期 ,分别喷施 50～ 150mg/GA3,对杨梅减花均有效果。综合大田试验结果 ,以采收前喷 10 0mg/LGA3的效果最好 ;与对照相比 ,其春、夏梢减花幅度分别为 59.7%和 53.3% ,春梢上的花芽增长 0 .19cm ,增粗 0 .13cm ,春梢抽生数量增加 133.3% ,平均单果重增加 3.7g ,可溶性固形物含量增加 3.4 % ,成熟期提早 3d。
Before and after harvest, the waxberry seedlings were sprayed with 50-150 mg / g of GA3 respectively during the physiological differentiation period, which had the effect of reducing the flowering of bayberry. According to the results of field experiment, the effect of spraying 10 0 mg / L GA3 was the best before harvesting. Compared with the control, the flower reduction rate of spring and summer shoots was 59.7% and 53.3% respectively, the flower buds on spring shoots increased by 0.19cm, Thickening 0.13cm, the amount of spring shoots increased by 133.3%, the average weight gain of 3.7g, 3.4% increase in soluble solids content, the maturity of 3d.