摘要
对刺槐无性系进行了营养钵插根育苗试验,结果表明:(1) 粗根段(05 ~08cm) 平均扦插成活率78 % ,平均苗高236 m ,平均地径226cm ,分别比细根段(04cm 以下) 提高279 % 、283 % 、249 % 。(2) 长根段(8 ~12cm ) 平均扦插成活率833 % ,平均高248 m ,平均地径228cm ,分别比短根段(4 ~5cm) 提高278 % 、151 % 、97 % 。
Eeperiment on root cuttings of clones of R.pseudoacacia L.in nutritive pot has been carried out.The results showed average survival ratio for thicker roots (0 5-0 8)was78%,with average sapling height 2 36m and average root neck 2 26cm,which increased by 27 9%,28 3%and 24 9%respectively,compared with thinner roots (under0 4cm).Root cuttings survival rate for longer roots was 83 3%,average sapling height 2 48m and average root neck 2 28cm,which increased by 27 8%,15 1%and 9 7% respectively,compared with shorter roots(4-5cm)
出处
《河南林业科技》
1999年第3期15-16,31,共3页
Journal of Henan Forestry Science and Technology
关键词
刺槐
插根
营养钵育苗
育苗
Robinia pseudoacacia L
Root cutting
Nutritive pot