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土壤施用和叶面喷布多效唑,一年生桃树新梢生长显著受抑,新梢节间缩短,树高降低和树冠体积减小,施用量增加抑制增强。翌年仍有后效作用。土壤施用时,可促进芽早发,但不抽出新梢,增施GA类则可。多效唑还能增加叶绿素含量及光合强度,促进花芽形成,有利于桃果产量增加,而对桃果大小、单果重及品质没有不良影响。
Soil application and foliar application of paclobutrazol significantly inhibited the growth of annual shoots of peach trees, shorten the shoots of new shoots, reduced the tree height and decreased the crown volume, and inhibited and increased the application rate. The following year there are still after effects. Soil application, can promote early buds, but do not extract the shoots, GA class can be added. Paclobutrazol also increased chlorophyll content and photosynthetic rate, promoted flower bud formation, increased peach fruit yield, and had no adverse effect on peach fruit size, fruit weight and quality.