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近几年来,为了发展硬阔叶树良种,广泛开展了树木选优,优树嫁接和建立无性系嫁接种子园的科研活动.我场林木良种基地350亩,白榆62亩已开始结实.很多单位实践证明,嫁接苗的生长受砧术影响很大.而它们之间的相关关系如何?相关系数多大?又是遵循怎样的回归方程?目前还未见详细的报道.根据1977年2年生优树嫁接苗生长调查,我们作了以下相关分析,是否妥当,供参考,请指正.
In recent years, in order to develop hardwood broad-leaved varieties, widely carried out tree selection, excellent tree grafting and the establishment of clonal grafting seed orchard research activities. My field of forest seed base 350 acres, 62 acres of elm has begun to fruition. Many units practice Proved that the growth of grafted seedlings affected by anvils are very large. And how is the correlation between them? Correlation coefficient how much? And what kind of regression equation is followed? Up to now, no detailed report .According to the 1977 2-year-old tree grafting Miao growth survey, we made the following analysis, is appropriate, for reference, please correct me.