广西科学院学报2025，Vol.41Issue(3)：299-305,7.DOI:10.13657/j.cnki.gxkxyxb.20251017.006
濒危植物滇桂石斛的扦插繁殖试验
Cutting Propagation Test of the Endangered Plant Dendrobium scoriarum
摘要
Abstract
Dendrobium scoriarum is a national second-class protected wild plant with important medicinal and ornamental value.The optimum experimental conditions for rooting of keikis of D.scoriarum were studied,which could provide technical support for the protection and cultivation of this species.In this study,a four-factor,three-level L9(34)orthogonal test was used to evaluate the rooting effect of the keikis rooting rate,mean rooting number and mean root length,and the keikis rooting effect index was constructed to explore the effects of hormone type,hormone concentration,cutting substrate and cutting position on the rooting of keikis of D.scoriarum cuttings.The results show that the type of hormone has the greatest influence on the rooting effect index of keikis,followed by the cutting substrate,and the hormone concentration has the least influence.The effects of hormone types and cutting substrates on the rooting rate of keikis reached a signifi-cant level(P＜0.05).When the concentration of indoleacetic acid(IAA)is 300 mg/L,the substrate for cut-ting is Sphagnum sp.,and the cutting part is the upper part,the rooting effect of keikis of D.scoriarum cut-ting is the best,the rooting rate can reach 59.8％.关键词
濒危植物/滇桂石斛/扦插繁殖/高芽生根/正交试验Key words
endangered plants/Dendrobium scoriarum/cutting propagation/keikis rooting/orthogonal design分类
农业科学引用本文复制引用
江海都,韦霄,柴胜丰,彭丽辉,陈妮,唐小华,徐芳,杨哲,熊忠臣,徐坚旺,陈宗游..濒危植物滇桂石斛的扦插繁殖试验[J].广西科学院学报,2025,41(3):299-305,7.基金项目
国家重点研发计划课题(2022YFF1300703),国家自然科学基金项目(32160091,32060248),广西重点研发计划项目(桂科AB21196018),广西林业科技推广示范项目(2023LYKJ03,桂林科字[2022]第23号),广西植物功能物质与资源持续利用重点实验室自主项目(ZRJJ2022-2,ZR-JJ2023-6),桂林市创新平台和人才计划项目(20210102-3)资助. （2022YFF1300703）
