杉木第3代种子园初产期球果产量初步分析

Preliminary Analysis of Cone Yield of the 3rd Generation Seed Orchard of Chinese fir in the Early Production Phase

对嫁接后6a生的杉木第3代种子园球果产量进行了调查分析。结果表明,嫁接后6a生的杉木第3代种子园平均单株球果产量为3.24kg,平均建园无性系球果产量为25.32kg,平均每hm2球果产量为670.34kg。单株、无性系间球果产量差异较大,变异系数分别达到99.71%和95.98%。建园无性系中,球果产量达到29.17kg以上的占30%。

The survey was conducted on cone yield of the 3^rd generation Chinese fir seed orchard, which was 6 years old after grafting. Average cone yield of ever individual was 3.24kg, that of ever clone was 25.32kg, and that of ever hectare was 670.34kg. There were differences among individuals and clones, coefficient of variation of individuals and clones was 99.71% and 95.98% respectively. There were 30% clones whose cone yield reached more than 29.17kg.