摘要
用正交试验方法L9(34)研究了3种植物生长调节物质(IAA、GA3、NAA)以及3种浓度(50、100、200 mg/L)和3种处理时间(浸沾1 s、浸泡1 min、10 min)对银杏高位嫁接成活率与枝梢生长的影响.结果表明:采用IAA和NAA能够提高银杏嫁接成活率,最好组合是A3C2D1,成活率达99.3%,枝梢生长达128.3 cm,而GA3则对嫁接成活率有一定的抑制作用;在银杏嫁接时,IAA对银杏嫁接成活率和枝梢生长影响较大;不同时间的处理,激素对嫁接的效果也不同.
The effects of different concentrations （50, 100 and 200 mg/L） and different time periods （soaking for 1 second, for 1 minute and for 10 minutes） of IAA, GA3 and NAA on the living rate of top grafting and branch growth of Ginkgo biloba. L were investigated using an orthogonal design L9（3^4）. The results show that IAA and NAA could improve the living rate of top grafting, with the best ratio being A3C2D1, the highest living rate being 99. 3% and the branch length being 128.3 cm; but that GA3 restrained the living rate. Therefore, IAA had an obvious influence on the living rate of top grating and branch growth; however, the effects of exogenous growth regulators changed when used in a different time.
出处
《中南林业科技大学学报》
CAS
CSCD
北大核心
2007年第1期85-87,共3页
Journal of Central South University of Forestry & Technology
基金
自然科学基金资助项目(编号:桂科自0640136)
关键词
经济林
激素调节
银杏
嫁接成活率
枝梢生长IAA
non-timber product forst
hormone adjustment
Ginkgo biloba L
graft living rate
branch growth
IAA
