红松优树子代幼树高生长速生性状与遗传测定

The Genetic Test of Fast-growing Characters and Heriditary Selection for Height Growth of Pinus koraiensis Filial Generation

在红松自然分布区内对 3个亚区、9个地点、10 8株优树的子代 10年生幼树测定结果表明 ,高生长可作为优树表型遗传选择。亚区间和家系 /地点 /亚区间差异显著、极显著 ,北亚区带岭优树子代高生长表现最好 ;亚区、地点 /亚区、家系 /地点 /亚区遗传力分别为 0 .836 ,0 .5 37,0 .36 5。

In the natural distribution area of Pinus koraiensis, the height growth of ten-year-old filial generations for 3 subareas, 9 sites and 108 plus trees was dertermined. The results showed that the variations between subareas and family/site/subareas were significant. The growth in Northern subarea was the best in Dailing region, and the heritabilities of subarea, site/subarea and family/site/subarea were respectively 0.836, 0.537 and 0.365.