激素处理对白刺硬枝扦插的影响  

Effects of Hormone Treatments on Hardwood Cuttings of Nitraria tangutorum

作　　者：赵杏花[1] 左合君[1] 高永[1] 张景波[2] 范文萍 

机构地区：[1]内蒙古农业大学生态环境学院,内蒙古呼和浩特010019 [2]中国林业科学研究院沙漠林业实验中心,内蒙古蹬口015200 [3]赤峰平煤投资有限责任公司林业处,内蒙古赤峰024000

出　　处：《西北林学院学报》2014年第4期109-113,共5页Journal of Northwest Forestry University

基　　金：国家科技支撑项目专题"适沙生态经济植物培育及其资源衍生产业开发技术"(2011BAC07B02-03)

摘　　要：以白刺2～3年生枝条为材料进行硬枝扦插，探讨NAA、IBA、ABT-1作为生长调节剂，不同浓度、不同处理时间对插条当年成活率和越冬保存率的影响。结果表明，从成活率看，供试激素ABT-1与NAA、IBA均有显著差异；从保存率看，ABT-1与NAA有显著差异、与IBA无显著差异。3种激素对促进插条成活效果排序为：ABT-1〉IBA〉NAA〉CK；对促进插条越冬保存效果的排序为：IBA〉ABT-1〉NAA〉CK。处理时间对插条成活率、保存率的影响最大，处理3h对促进插条成活、越冬保存效果最佳。综合考虑因素间交互作用，促进白刺硬枝扦插成活效果最佳组合为50mg·L^-1ABT-1处理6h，成活率为80．5％，越冬保存率为59．4％；促进白刺硬枝扦插越冬保存效果最佳组合为50mg·L^-1IBA处理3h，成活率为69．6％，保存率为61．3％。Using 2-- 3 years hardwood branches of Nitraria tangutorum as materials, the effects of different hormone treatments on survival rate and preserving rate were explored, including 3 kinds of hormone （NAA, IBA and ABT-1）, 6 concentration gradients and 4 different processing time. The test data were analyzed by Excel 2010 and SAS9.0 software. For the survival rate, there were significant differences between ABT-1 and NAA, ABT-1 and IBA; for the preserving rate, there was significant difference between ABT-1 and NAA, no difference between ABT-1 and IBA. The order of three hormones to promote survival rate was ABT-1〉 IBA〉 NAA〉 control; the order of three hormones to promote preservation rate was IBA〉 ABT-1〉 NAA〉 control. Of all the factors, processing time was the most important one to promote survival rate and preserving rate, and the best processing time was 3 h. Considering the interaction among the factors, for hardwood cuttings of N. tangutorurn, the best combination for survival rate was ABT-1 with 50 mg · L^-1 by 6 h, in which the survival rate and preserving rate could be 80. 5% and 59.4%, respectively; and the best combination for preserving rate was IBA with 50 mg · L^-1 by 3 h, in which the survival rate and preserving rate could be 69.6% and 61.3%, respectively.

关 键 词：白刺 硬枝扦插 激素处理 成活率 保存率 

分 类 号：S723.13[农业科学—林木遗传育种]