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云南松半同胞家系初期子代测定
尹擎; 罗方书; 舒筱武;
1.中国科学院昆明植物研究所;2.云南省林业科学院
摘要:
对收集的云南松(Pinus yunnanensis)292个半同胞家系进行栽培试验,经方差分析知各家系子代间高生长有极显著差异,真正的优树占参试总数的29.7%(广西);树高广义遗传力为58.0%,遗传增益为38.89%;同一林分内家系间高生长变异幅度小于林分之间的变异幅度。
关键词:  半同胞家系  子代测定林  遗传力  遗传增益  
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