NAA预处理对三角梅水培和基质培扦插生根的影响  

Effects of NAA Pretreatment on the Rooting of Bougainvillea Cuttings in Hydroculture and Substrate Culture

作　　者：杜学林 张丽华 陆毅妍 袁志民 温志 DU Xuelin;ZHANG Lihua;LU Yiyan;YUAN Zhimin;WEN Zhi(Guangzhou Institute of Forestry and Landscape Architecture,Guangzhou,Guangdong 510405,China;Guangzhou Ecological Garden Technology Collaborative Innovation Center,Guangzhou,Guangdong 510405,China)

机构地区：[1]广州市林业和园林科学研究院,广东广州510405 [2]广州市生态园林科技协同创新中心,广东广州510405

出　　处：《热带农业科学》2024年第6期43-47,共5页Chinese Journal of Tropical Agriculture

基　　金：广州市科技局社会发展项目“广州市生态园林科技协同创新中心”(No.202206010058);广州市林业和园林科学研究院院立项目“三角梅花期调控研究”。

摘　　要：为探究更加高效、环保的三角梅繁殖方法,以樱花三角梅(Bougainvillea peruviana ‘Imperial Delight’)半木质化枝条为试验材料,比较研究生长调节剂NAA预处理对三角梅水培和基质培扦插生根的影响。结果表明:200 mg/L NAA预处理能促进三角梅水培和基质培扦插生根;但在相同NAA浓度下,基质培各组生根率均高于水培组,且生根数及根长情况也优于水培组;根粗细及颜色与扦插方式无关。说明200 mg/L的NAA适合‘樱花’三角梅扦插繁殖;同时,水培扦插方式还需进一步优化。Using Bougainvillea peruviana‘Imperial Delight’semi-woody branches as experimental materials,this study compared the effects of NAA(naphthalene acetic acid)pretreatment on the hydroponic and substrate-cutting rooting of Bou-gainvillea.The results revealed that pretreatment with 200 mg×L^(-1) NAA promoted the rooting of Bougainvillea via both hy-droponic and substrate-cutting methods.However,at the same NAA concentration,the rooting rate in the substrate-cutting groups was greater than that of the hydroponic groups,and the number and length of roots were also greater in the sub-strate-cutting groups.Root thickness and color have nothing to do with cutting method.A concentration of 200 mg×L^(-1) NAA was determined to be suitable for the propagation of B.peruviana‘Imperial Delight’through stem cuttings,while further op-timization is necessary for the hydroculture.

关 键 词：三角梅 NAA 水培 基质培 

分 类 号：S685.99[农业科学—观赏园艺]