摘要
初选出46个杨树无性系,在豫南6个区试点进行了抗逆性、形态特征、生长特性和速生性的试验对比。结果表明:不同无性系在抗逆性、形态特征、生长特性和速生性方面存在显著差异;表现最好的无性系是TZ-8、次是TZ-5和TZ-6,7年生平均材积分别为0.6093、0.5329、0.5149 m3,与对照相比,增益分别为264%、231%和223%。选出了7个具有较强抗逆性和良好速生特性与观赏性的杨树新品系。
46 poplar clones selected from 205 clones in various ecologic region were tested and contrasted on the resistance, the shape characteristic, the growth characteristic and fast-growing in 6 region experiment sites of south of Henan. The result indicated that the different clone has the remarkable differenee on the resistance, the shape characteristic, the growth characteristic and the fast growing, The best clone is TZ-8, following by TZ-5 and TZ-6. The indMdual wood volume of these 3 clones at 7a old were 0.609 3 ms, 0.532 9 ms and 0.514 9 ms, resp. Comparing with the control, the realistic gain of these traits were 264% ,231% and 223%, resp. 7 new polar varieties with good resistance and view and admire were selected.
出处
《安徽农业科学》
CAS
北大核心
2007年第7期2007-2009,共3页
Journal of Anhui Agricultural Sciences
基金
河南省林业科技攻关项目
驻马店市林业科技攻关项目
关键词
杨树
无性系
速生抗逆性
选择研究
Poplar
Clone
Fast growing resistance
Selecting research
