不同植物生长调节剂处理对鸡血藤扦插生根和生长的影响  

Effects of Different Plant Growth Regulators on the Rooting and Growth of Spatholobus Suberectus Cuttings

作　　者：唐希远 罗梅妹 王耀仪 江天远 杨继生 罗华龙 陈敏佼 蒙享 邓宗升 徐圆圆[2] Tang Xiyuan;Luo Meimei;Wang Yaoyi;Jiang Tianyuan;Yang Jisheng;Luo Hualong;Chen Minjiao;Meng Xiang;Deng Zongsheng;Xu Yuanyuan(Guangxi State-Owned Qipo Forest Farm,Nanning 530031,Guangxi,China;Guangxi Key Laboratory of Forest Ecology and Conservation,Key Laboratory of National Forestry and Grassland Administration on Cultivation of Fast-Growing Timber in Central South China,College of Forestry,Guangxi University,Nanning 530004,Guangxi,China)

机构地区：[1]广西壮族自治区国有七坡林场,广西南宁530031 [2]广西大学林学院,中南速生材繁育国家林业和草原局重点实验室/广西森林生态与保育重点实验室,广西南宁530004

出　　处：《绿色科技》2024年第21期71-77,共7页Journal of Green Science and Technology

基　　金：广西自筹经费林业科技项目(编号:桂林科研[2022ZC]第86号);广西高校中青年教师科研基础能力提升项目(编号:2023KY0016)。

摘　　要：研究采用不同浓度的植物生长调节剂NAA、IBA及吲丁·萘乙酸对鸡血藤插穗进行处理,通过评价不同处理条件下鸡血藤插穗的生根与生长特性,探究不同浓度NAA、IBA及吲丁·萘乙酸对鸡血藤扦插繁殖的影响,筛选出最适合鸡血藤扦插生根的植物生长调节剂浓度,以期为鸡血藤的高效人工繁育提供科学依据。结果表明:100 mg/L IBA处理的鸡血藤生根率最高,为95.56%,较CK显著升高13.34%(P<0.05);1 mL/L吲丁·萘乙酸处理在鸡血藤扦插苗的根系数量(18.67条/株)、根系长度(158.38 cm)、根系体积(1.52 cm^(3))上和生根效果指数(98.55)均表现最高,显著高于CK和其他处理(P<0.05);50 mg/L NAA、2 mL/L吲丁·萘乙酸、150 mg/L NAA和50 mg/L IBA分别在促进SPAD值、新梢长度、新梢直径、新梢生物量等指标表现最佳;根据主成分综合评价结果,不同处理的鸡血藤扦插苗综合得分排名最高为150 mg/L NAA,表明在150 mg/L NAA处理下,鸡血藤扦插苗的生根与生长状况最好。Spatholobus suberectus,a traditional Chinese medicinal herb,faces a severe decline in wild resources,leading to an urgent need for efficient artificial propagation.This study investigated the effects of different concentrations of plant growth regulators-NAA,IBA,and Indine Naphthalene Acetic Acid-on the rooting and growth characteristics of Spatholobus suberectus cuttings.The aim was to determine the optimal concentration of these growth regulators for the propagation of Spatholobus suberectus to provide a scientific basis for its efficient artificial cultivation.The results showed that cuttings treated with 100 mg/L IBA had the highest rooting rate of 95.56%,significantly higher than the control by 13.34%(P<0.05).The treatment with 1 mL/L Indine Naphthalene Acetic Acid resulted in the highest number of roots per plant(18.67),root length(158.38 cm),root volume(1.52 cm^(3)),and rooting effect index(98.55),all significantly better than the control and other treatments(P<0.05).The treatments with 50 mg/L NAA,2 mL/L Indine Naphthalene Acetic Acid,150 mg/L NAA,and 50 mg/L IBA showed the best results in SPAD value,new shoot length,new shoot diameter,and new shoot biomass.Based on the principal component comprehensive evaluation,the overall best performance was achieved with 150 mg/L NAA,indicating that this concentration provides the most favorable conditions for the rooting and growth of Spatholobus suberectus cuttings.

关 键 词：鸡血藤 扦插 植物生长调节剂 生根 生长 

分 类 号：S615[农业科学—园艺学]