黑杨新无性系在滇池湖滨引种试验

The Introduction of New Hybrid Black Poplar Clones in the Dianchi Lake Area

一种欧美杂交黑杨在滇池湖滨带首次引种成功。对其6个无性系苗期进行了试验研究,并利用Logistic曲线方程对无性系黑杨在滇池湖滨1年生扦插苗木的年生长节律进行拟合,确定不同品系的速生点及速生期。试验表明,该品种具有明显生长优势且适应性好,管理粗放,成活率较高。对土壤中有效肥力的利用情况进行了对照研究。

A new species of hybrid black poplar （ Populus deltoides Marsh. × （ P. × euramericana） ） was first successfully introduced to Dianchi Lake. The steckling growth of six clones was researched. And also using Logistic curve equation of annual growth rhythm of hybrid black poplar clones in the Dianchi lake to determine the fast-growing point and fast-growing period of different clones. The results showed that the species has obvious growth advantage, good adaptability, extensive management and higher survival rate. The utilization of soil fertility between different clones were also researched in this paper.