生长调节剂对白花龙扦插生根效能的影响  

Effects of growth regulators on rooting efficiency ofcuttings of Styrax faberi Perk

作　　者：刘瑶 惠静怡 唐思佳 金艳 李长虎 童丽丽 张耀琴 许晓岗[2] Liu Yao;Hui Jingyi;Tang Sijia;Jin Yan;Li Changhu;Tong Lili;Zhang Yaoqin;Xu Xiaogang(School of Horticulture and Landscape Architecture,Nanjing 210038,China;Co-Innovation Center for SustainableForestry in Southern China,College of Biology and the Environment,Nanjing Forestry University,Nanjing 210037,China)

机构地区：[1]金陵科技学院园艺园林学院,江苏南京210038 [2]南京林业大学南方现代林业协同创新中心/生物与环境学院,江苏南京210037

出　　处：《江苏林业科技》2020年第5期1-4,10,共5页Journal of Jiangsu Forestry Science & Technology

基　　金：2019年江苏省大学生创新训练计划项目“白花龙在南京引种的适应性研究”(201913573058Y);江苏省林业科技创新与推广项目“红花茉莉繁育技术集成示范推广”(LYKJ[2018]13)。

摘　　要：为探明生长调节剂对白花龙插穗生根效能的影响,试验以不同生长调节剂类型、质量浓度进行2因素4水平处理试验并观测。结果为:①IBA对白花龙插穗的生根有促进作用,其中750 mg/L IBA处理的插穗生根率最高,达85.56%,其次是500 mg/L IBA处理的插穗,生根率达67.78%;②插穗取样部位以中下部生根效果最好;③可溶性糖和可溶性蛋白质含量随生根过程而变化,都呈现下降-上升-下降的趋势;④500 mg/L IBA的处理最有利于插穗生根过程中可溶性糖和可溶性蛋白质的积累,750 mg/L IBA的处理次之。综合来看,高质量浓度的IBA有利于白花龙插穗生根、可溶性糖和可溶性蛋白的积累;最佳处理是500 mg/L IBA,其次是750 mg/L IBA。In order to learn the effect of exogenous hormones on rooting efficiency of cuttings of Styrax faberi,different types and concentrations of growth regulators were treated with 2 factors and 3 levels.Result showed as follows:①IBA had a promoting effect on the rooting of the cuttings,with 750 mg/L reaching the highest rooting(85.56%),followed by 500 mg/L,reaching 67.78%;②The rooting effect of the middle and low parts of cuttings was the best;③The content of soluble sugar and soluble protein changed with the rooting process,showing a trend of decline-rise-decline.④The treatment of 500 mg/L IBA was the best for the accumulation of soluble sugar and soluble protein during rooting,followed by 750 mg/L IBA.In conclusion,the high concentration of IBA(500 mg/L,followed by 750 mg/L)was beneficial to the cutting rooting and the accumulation of soluble sugar and soluble protein.

关 键 词：白花龙 生长调节剂 插穗 生根 生理指标 安息香科 

分 类 号：Q945.52[生物学—植物学] Q949.775.5