摘要
切断侧根会对滇润楠苗木地上部分的生长产生负影响而有利于促进新根的萌发,其影响与断根的强度有关。采用一次全部切断侧根并在切口喷上生根粉,40天后有新根生出,3个月每株萌发的新根平均达222条、≥5 cm侧根数平均为74.8条、侧根深度28 cm、最长侧根13.6 cm,新根已基本发出完毕,因此3个月后就可以移栽而能保证成活率。
Cutting lateral root of Machilus yunnanensis will have negative effects on the growth above ground and promote bourgeon of new roots. Such effects have to do with the intensity of lateral-root cutting. In this study, rooting powder was applied on cut where lateral root was severed by one complete cutting. New roots came out after 40 days, an average of 222 new roots on each plant after 3 months, among which 74.8 roots longer than 5 cm, 28 cm of lateral root depth, and 13.6 cm of the longest lateral root. After 3 months the roots were ready for transplant and survival rate was ensured since all new roots had come out.
出处
《广西林业科学》
2009年第1期23-25,共3页
Guangxi Forestry Science
基金
云南省科技创新强省计划项目(2007AB006)子专题"云南特色木本花卉新特优树种选择
繁育及栽技术研究"内容之一
关键词
滇润楠
断根
生长发育
Machilus yunnanensis
lateral-root cutting
growth
