外源激素对大籽獐牙菜种子萌发的影响  

Effects of Exogenous Hormones on Seed Germination of Swertia macrosperma

作　　者：罗萍 钱海兵 刘晓龙 丁宁 王波 郑亚强 李姝臻 LUO Ping;QIAN Haibing;LIU Xiaolong;DING Ning;WANG Bo;ZHENG Yaqiang;LI Shuzhen(School of Pharmacy,Guizhou University of TCM,Guiyang 550002,China)

机构地区：[1]贵州中医药大学药学院,贵阳550002

出　　处：《耕作与栽培》2022年第6期1-4,共4页Tillage and Cultivation

基　　金：国家中医药管理局项目“贵州省全国中药资源普查”(国中医药办科技函[2018]132号、国中医药办科技函[2019]186号);贵州省教育厅青年科技人才成长项目(黔教合KY字[2021]201)。

摘　　要：以大籽獐牙菜种子为供试材料,研究不同浓度的GA_(3)、IAA、IBA及NAA等4种外源植物激素对大籽獐牙菜种子萌发的影响。结果表明,在形态大小上,大籽獐牙菜种子个头较大。不同的植物激素对促进大籽獐牙菜种子萌发的影响不同,GA_(3)对种子萌发的促进作用最显著,发芽率最高的是50 mg/L的GA_(3)处理,高达92.67%;低浓度的IAA对大籽獐牙菜种子的萌发有一定促进作用,但是对大籽獐牙菜萌发后的幼苗生长可能具有抑制作用;IBA和NAA-NA可能不适合作为大籽獐牙菜种子萌发的促进激素。The effects of different concentrations of gibberellin(GA_(3)), indoleacet-ic acid(IAA), indolebutyric acid(IBA) and NAA on seeds of Swertia macrosetia were studied. The results showed that the seeds of Swertia macrop-hylla were larger in morphology and size.Different plant hormones had differe-nt effects on seed germination of Swertia macrosetia, GA_(3)had the most significant effect on seed germination, and the highest germination rate was 50 mg/L GA_(3), up to 92.67%. Low concentration of IAA promoted seed germination of Swertia macrosetia to some extent, but inhibited seedling growth after germination. IBA and NAA-NA may not be suitable for seed germination promotion of Swertia macrosetia.

关 键 词：植物激素 大籽獐牙菜 种子萌发 发芽率 

分 类 号：S567.239[农业科学—中草药栽培]