高寒地区黄杨播种试验

摘要

[目的]选育适宜高寒地区气候条件下的绿化用黄杨品系。[方法]对沈阳、丹东、大连3个种源地的黄杨进行播种试验，调查幼苗当年高、当年地径，统计千粒重、发芽率。[结果]3个种源朝鲜黄杨种子在千粒重、发芽率上存在不同程度差异，千粒重越大，发芽率越高；3个种源朝鲜黄杨幼苗当年高和当年地径差异显著（P＜0．05）。[结论]从当年高和当年地径来看，沈阳种源最好，丹东次之，大连最差。%Objective] To select suitable varieties of Buxus microphylla var.koreana.[Method] Sowing test on B.microphylla was carried out in three provenances of Shenyang, Dandong and Dalian.Seedling height, ground diameter, 1 000-grain weight and germination rate were investi-gated.[Result] Seeds from three provenances showed certain differences in 1000-grain weight and germination rate.Greater 1 000-grain weight led to higher germination rate.B.microphylla seeds from three provenances had significant differences in plant height and ground diameter (P <0.05).[Conclusion] According to the plant height and ground diameter, provenance in Shenyang is the optimal, followed with Dandong.And Dalian is the worst.