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众所周知,重复施用乙烯丰导致刺激效应下降。据观察,效应下降强度随品种、剖面年龄、割胶强度、刺激强度以及施药前和施药期间抚管的好坏而异。本文对若干品系连续刺激7—9年的产量模式、不同割面的刺激效应大小以及随时间推移效应下降等作出比过去更为详细的评价。本研究的目的是,在分析和评价现有资料以后,提出别的用乙烯丰刺激割胶的各种方法时,希望能确立总的模式和趋势。为了尽可能详细地分析,本文只能就刺激和不刺激两种制度的半螺旋隔日割制这个问题进行研究。一、材料和方法与试材料为PR107,PB86,Tj1,
It is well-known that repeated application of ethylene abundance leads to a decrease in the stimulatory effect. It is observed that the effect of the decline in intensity with the variety, profile age, tapping strength, intensity and intensity of stimulation before and during administration Fuzao good or bad varies. In this paper, several series of continuous stimulation of 7-9 years of production patterns, the impact of different cutting surface size and the effect of decline over time to make more detailed than in the past evaluation. The purpose of this study was to identify other patterns and trends that could be established when using various methods to stimulate tapping with vinylphenols after analyzing and evaluating available data. In order to analyze as detailedly as possible, we can only study the issue of semi-helical alternate-day cutting between the stimulus and non-stimulus systems. First, materials and methods and test materials for the PR107, PB86, Tj1,