西北林学院学报2017，Vol.32Issue(5)：109-114,6.DOI:10.3969/j.issn.1001-7461.2017.05.19
不同生根促进剂对国槐嫩枝扦插生根过程中内源激素变化的影响
Effects of Different Rooting Accelerators on the Changes of Endogenous Hormones in Sophora japonica during Softwood-cutting Rooting Process
摘要
Abstract
Cuttings of Sophora japonica treated with IBA,NAA and ABT1 were used as materials to investigate the changes of four endogenous hormones in cuttings during the rooting process by means of ELISA.The results showed that the application of rooting accelerators changed the contents of four endogenous hormones (IAA,ABA,GA3 and ZR) in softwood cuttings of S.japonica in the process of adventitious root formation.The significant differences were found among three treatments.The rooting accelerators treatments increased rooting rate significantly.The rooting rate of the cuttings treated by IBA was 35.17％,which was higher than that treated by NAA (24％) and ABT1 (17％).About 12 days after cutting,the endogenous IAA content and the IAA/ABA,IAA/ZR ratio was at relatively high levels,and the endogenous ABA,GA3 and ZR were relatively low.The fluctuations of endogenous hormones were similar between NAA and ABT1 treatment for their similar rooting rates and similar rooting time.IBA increased the content of IAA and promoted the earlier coming of climaxes of IAA,while it could decrease the contents of ABA,GA3 and ZR,which were accounted for the improvement of rooting ability after treated with IBA.关键词
国槐/嫩枝扦插/生根促进剂/内源激素Key words
Sophora japonica/softwood cutting/rooting accelerator/endogenous hormone分类
农业科技引用本文复制引用
王艳晶,彭祚登..不同生根促进剂对国槐嫩枝扦插生根过程中内源激素变化的影响[J].西北林学院学报,2017,32(5):109-114,6.基金项目
北京园林绿化落叶乔木优良品种选育及栽培技术(CEG-2015-01). （CEG-2015-01）
