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试验于1984—1985年在在太谷县白城村千亩果园内进行,随机从该园内选取96株11年生的苹果树。连续二年调查研究了红星。金冠,国光三个品种的主干干周和单株产量,分析了干周粗度与树体合理负菏量的相关性,提出了以周作为干粗指标的单株负菏量的定量预测的回归方程如下 据英国朗·
The experiment was carried out in Qianmu Orchard in Baicheng Village, Taigu County from 1984 to 1985, and 96 eleven-year-old apple trees were randomly selected from the park. For two consecutive years investigated the Red Star. Golden Delicious, Guoguang three main varieties of dry weeks and per plant yield, the analysis of the dry week and the tree reasonable amount of the correlation between the amount of dry weeks, The regression equation is as follows