不同种源紫椴苗期优良家系选择

Selection of Superior Families of Tilia amurensis at Different Seedling Stages in Central Plain

以在吉林省多地采集的21个不同紫椴家系2年生播种苗为研究对象,对紫椴幼苗生长性状进行观测分析的结果表明:不同采种地的紫椴幼苗苗高差异不显著、地径差异显著,21个家系紫椴幼苗的苗高和地径差异均极显著,家系7、8和16为紫椴苗期优良家系。

The 2-years-old seedlings of 21 different Tilia amurensis families collected in many places in Jilin Province were studied.The results of observation and analysis on growth characters of Tilia amurensis seedlings show that there is no significant difference in height and diameter of Tilia amurensis seedlings in different fields,and the difference in height and diameter of Tilia amurensis seedlings in 21 families is very significant,families 7,8 and 16 were excellent families of Tilia amurensis at seedling stage.