摘要
通过对14个青杨种源12a的栽植试验,筛选出7个表现优于西宁青杨的青杨种源,其中,耿镇青杨苗高增益达到39%。建议所选种源在青海年均温大于等于5℃的地区栽植。
14 seed source of Cathay Poplar have been cultivated test for 12years.In the end 7 seed source of Cathay Poplar are selected. Their character better than Cathay Poplar in Xining. Among them,Cathay Poplar in Gengzhen is taller 39% than Cathay Poplar in Xining. 7 Cathay Poplar seed source should be cultivated and popularized area that it's annual average temperature would be more than 5℃.
出处
《青海农林科技》
2004年第B03期26-27,共2页
Science and Technology of Qinghai Agriculture and Forestry
