【摘要】 不同剂量多效唑浸施连续多年低产的串芒,均能显著提高成花率和单株果数。单株成花百分率在50%≤x<70%时,可以获得最高的穗果率和单株果数。不同剂量的多效唑处理对采后第一次秋梢、第三年结果母枝的生长有不同程度的抑制作用,且减少叶片数。每株施用4.5g的处理效果最好、较安全,且第三年的单株果数仍显著高于其他处理。更多还原

【Abstract】 The root soil of "Chuan-mang"(Mangifera indica L.cv.Chuan mang) with continuous low yield for many years were drenched with different dosages of paclobutrazol(PP333),it showed that the floral ratio and fruit number of per plant were increased significantly.When the floral ratio of per plant was 50%-70%,the fruit numbers of per panicle and per plant were the highest.The growth of the first autumn shoots and the bearing branches in third year after harvesting was inhibited in varying degree by different dosage of paclobutrazol,and the leaves were decreased.The effect of treatment with 4.5g per plant was the best and safer,and the fruit number per plant in third year was still higher than the other treatments.更多还原