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根据梨树以短果枝结果为主这一特性,作者1997年用15％的多效唑对4年生黄花梨进行了试验,分别以多效唑800×10~(-6)、1600×10~(-6)、2400×10~(-6)不同浓度及清水对照为A、B、C、D共4个处理,单株小区,随机排列,3次重复。4月24日新梢迅速生长期均匀喷布叶面,当年新梢停止生长时调查新梢长度和15cm以内的短枝数,次年调查花芽数量及果实产量。 试验结果:A、B、C 3个处理的新梢长度比对照分别减少14.2％、32.6％、31.7％,短枝数比对照分别增加16.3％、55.4％、51.1％,新梢数与对照没有多大差别;A、B、C 3个处理次年平均单株花序数比
According to the characteristic of pear tree with short fruit branches, the author studied the perennial pear with 15% of paclobutrazol in 1997, with the effects of paclobutrazol 800 × 10 -6, 1600 × 10 -6, , 2,400 × 10 ~ (-6) different concentrations and water control were A, B, C and D, a total of four treatments, single plot, random arrangement, three replicates. On April 24, shoots were rapidly sprayed on the shoots. When the shoots stopped growing, the number of shoots and the number of shoots within 15 cm were investigated. The number of flower buds and fruit yield were investigated the following year. The results showed that the shoot length of A, B and C decreased by 14.2%, 32.6% and 31.7% respectively compared with the control, and the number of shoots increased by 16.3%, 55.4% and 51.1% respectively compared with the control, How much difference; A, B, C 3 treatment next year the average number of inflorescences per plant