马尾松半同胞子代测定及速生优良家系和个体选择

Study on progeny test and selection of fast growing families and individuals in Masson Pine

对福建三明中村试验点的马尾松半同胞子代测定林9年生和16年生时进行调查研究,结果表明,2个年度的生长性状在家系间差异都达到显著或极显著水平;对2个年度入选家系进行比较,认为马尾松早期选择是积极有效的,有利于增强预测和测定的可靠性,优化育种程序;以材积为主要指标,从参试的70个家系中选出7个速生家系和13株速生个体,增产效果显著。

The analysis of variance was adopted to study the 9-year-old and 16-year-old half-sib progenies of Masson pine at Zhongcun test site of Sanming. The results showed that there were very significant differences among families in growth traits using two years data; compared with the number of selected families using two years data, the results showed that early selection was effec- tive. It was of great benefit to forecast dependability and breeding procedure optimized. Based on stem volume, 7 fast growing families and 13 individuals were selected among 70 families. These selected families individuals could increase the yield in forestry production.