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对日本落叶松初级种子园60个自由授粉家系研究结果表明,家系的树高、胸径、材积等生长性状都存在着明显遗传变异。选出的17个优良家系的平均遗传增益,树高为43%,胸径为131%,材积为261%。优良家系可在豫西伏牛山区造林中应用推广。
The results of 60 free pollination families in Japanese larch primary seed orchard showed that there were obvious genetic variations in the growth traits of tree height, diameter at breast height and volume. The average genetic gain of 17 elite families was selected. The tree height was 43%, the diameter at breast height was 131%, and the volume was 261%. Good families can be used in the western Henan Funiu afforestation in the promotion.