摘要
对陕西省武功县大田定植引进的 2 0个优良美国东部黑核桃无性系进行了区域试验 ,观测并分析各无性系成活率、保存率、干径、侧枝生长情况等 ,对其在本区域内栽植 2a后的生长作了综合评价 ,初步判断无性系 19号明显表现最优 ,4、18、8号较差 ,17号抗寒性较差 ,13号成活率低 ,其余各无性系的生长表现无显著差异。
A regional plantation experiment was carried out in Wugong County of Shaanxi on introducing twenty excellent Juglans nigra varieties into the field. By observing and analyzing their survival rates, keeping rates, stem diameters with side-branch growing within two years, their local growth characteristics were assessed. Preliminary conclusion is that variety No.19 is obviously best; No.4, 18 and 8 are relatively bad; cold-resistance of No.17 is worse than others; survival rate of No.13 is lowest; the other varieties are of no remarkable diffrence in growth.
出处
《西北林学院学报》
CSCD
北大核心
2004年第3期21-23,共3页
Journal of Northwest Forestry University
基金
南京中医药大学协作项目"黑核桃良种区域化试验研究及推广"( 2 0 0 0 0 3 )
