摘要
本文通过对１９７３年营造的杉木种子园子代测定林３年生、７年生和２５年生的生长数据进行分析，结果表明树高和材积在早晚期生长上存在着极显著的线性相关关系，家系间生长存在着极显著差异．按三年生树高大于对照１０％以上、七年生材积生长大于对照２５％以上、廿五年生材积生长大于对照２０％以上的标准进行家系选择，三次选择的家系十分相似，同时中选的家系数占早期选择家系数的９０％以上．但也有少部分家系后期生长快，在到达经济成熟龄时进行家系选择。
Through the analysis of growth data of 3 years,7 years and 25 years longterm testing,the analysis results showed that there was extreme remarkable linear correlation between tree height and volume between Juvenile and mature,in the testing.According to the selection standard for height at 3 year being above 10% upon ck,volume growth at 7 year being above 25% upon ck,the selected families were familiar in the three selection stages,and the same selected families accounted for 90% comparing with the selected families in early-selection.However,there were few families in late start growing,so we could make a additional selection in economic mature age which had applicable value for productivity.
出处
《福建林学院学报》
CSCD
1998年第4期362-365,共4页
Journal of Fujian College of Forestry
关键词
杉木
子代测定
早晚相关
家系选择
材积生长量
Chinese fir,longterm testing,linear correlation,family selection,volume growth
