马尾松无性系胸径与结实量的相关性

摘要

The relationships between the diameter at breast height (DBH, vegetative growth) and fruitification( reproductive growth) of clones of P. Manssoniana were analyzed to provide a theoretical reference for clones selection. The results showed that there was no significant correlations between DBH and fruitification among the clones (r=0. 275 98). There were particular positive correlations between DBH and fruitification within each clone(r>0. 7). Indexes of vegetative growth and reproductive growth had the same weight in primary family selection.%为马尾松种子园建园时无性系的选择提供理论依据,对马尾松种子园无性系胸径(营养生长)与结实量(生殖生长)的关系进行分析.结果表明:在马尾松不同无性系间,胸径与结实量间没有显著的相关性(r=0.27598);在马尾松相同无性系内不同单株胸径与结实量间存在一定的相关性(r＞0.7).在入园材料选择时,预选家系的生殖生长指标与营养生长指标应赋予同等的选择权重.