抑枝素对缓和果树极性效应的研究

The Study of the Effect of Inhibitor on the Alleviation of Ftuit Tree Polarity

用植物生长调节剂——抑枝素羊毛脂软膏涂抹背上短截枝条剪口，其新梢生长量明显减弱，同时出现顶端优势逆转现象。此效应使所萌枝条有利于转化为结果的枝条类型；所萌枝条的空间排列有利于光能利用，从而有利于将背上徒长枝改造成充分利用空间、结构合理的结果枝组。在抑枝素的使用中以高浓度（９０×）的效果最为明显。

When plant-growth regulator inhibitor lanolin paste is spread upon the head ofcut of back branch ,its new shoot growth rate weakens evidently,and a reversing phe-nomenon of apical dominance will appear simultaneously. This effect makes the sproutedbranch beneficial to fruit bearing:the sprouted branches are arranged in such a manner thatthe light-receiving condition was improved greatly,thus the excessive branches on the backcan be transformed into fruit-bearing branch groups fully utilizing space and rationally struc-tured.Inhibitor provides a new method for cuIture and transformation of fruit-bearing branchgroup in fruit culture. In the utilization of inhibitor,the effect is the most evident with highconcentration.(90×)