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对广东地区7年生杉木优良家系区域化测定试验林进行了实测调查与统计分析,结果表明:家系间胸径、单株材积有极显著差异,3个生长性状在地点间差异极显著,在家系×地点互作上表现为互作效应极显著,家系间生长存在遗传差异,不同家系对造林立地适应性有所不同,立地不同林分生长也不一样,说明开展区域试验是必要的。文章根据单株材积主效应、家系×地点互作效应及变异系数的统计结果,13个家系可分为速生稳定型、速生变化型、慢生稳定型和慢生变化型四种类型,对各类型家系作了应用评价。
The results showed that there was a significant difference in DBH and single plant volume between the three families, and there were significant differences among the three growth traits in the locations. There was a significant genetic variation in the interactions among different families. The adaptability of different families to stands was different, and the growth of different stands in site was also different, which indicated that it was necessary to carry out regional experiments. According to the main effect of single plant volume, the interaction effect between family × locus and the coefficient of variation, 13 families can be divided into four types: rapid-growth stable type, fast-growing change type, slow-growth steady type and slow-growth change type. Type family made appraisal.