朝鲜黄杨种源试验苗期效果初报

利用引进的锦州、沈阳、大连、鞍山4个产地朝鲜黄杨(Buxus microphylla var.koreana)种源进行播种试验,对幼苗出苗率、保存率、苗高、地径、分枝数、冠幅调查测量。结果表明:4个种源的出苗率、当年苗高、分枝数、冠幅均存在显著差异,地径差异不显著。沈阳种源播种出苗率最高,为75.48%;沈阳、大连种源当年苗高14.53 cm、14.08 cm,分枝数9.43条、9.21条,冠幅12.02 cm、10.00 cm,显著高于鞍山、锦州种源;苗木越冬保存率均在90%以上。沈阳种源表现最好。鞍山和锦州种源表现较差。

Effect of Provenance Test for Buxus microphylla var. koreana in Seedling Stage

Using Buxus microphylla var.Koreana which were introduced from Jinzhou City,Shenyang City,Dalian City,and Anshan City,provenance experiments were conducted.Seedling emergence rate,preservation rate,seedling height,ground diameter,branch number,crown survey survey were.Result shows that there are significant differences in the emergence rate,seedling height,number of branches,and crown width of the four provenances,and the differences in ground diameter are not significant.The seeding rate of Shenyang provenance is the highest,which is 75.48%;the seedlings height of Shenyang&Dalian provenances are 14.53 cm&14.08 cm,the number of branches is 9.43&9.21,and the crowns are 12.02 cm&10.00 cm,which are significantly higher than those of Anshan&Jinzhou provenance;seedlings overwintering preservation rates are above 90%.Shenyang provenance perform best.Anshan&Jinzhou perform poorly.