不同预处理对葛麻姆种子萌发和幼苗生长的影响  

Effects of Different Pretreatments on Seed Germination and Seedling Growth of Pueraria montana

作　　者：明钟镱 朱玉野[1] 杨碧穗 李袁杰 谢璐欣 吴波[1] 朱小芬 董丽华 夏澜婷 葛菲[1] MING Zhong-yi;ZHU Yu-ye;YANG Bi-sui;LI Yuan-jie;XIE Lu-xin;WU Bo;ZHU Xiao-fen;DONG Li-hua;XIA Lan-ting;GE Fei(School of Pharmacy,Jiangxi University of Chinese Medicine,Nanchang 330004,China)

机构地区：[1]江西中医药大学药学院,江西南昌330004

出　　处：《江西农业学报》2023年第3期106-112,共7页Acta Agriculturae Jiangxi

基　　金：国家重点研发计划项目(2017YFC1702901);江西省农村农业厅项目(JXARS-16);江西中医药大学校级研究生创新专项资金项目(JZYC22S63)。

摘　　要：采用聚乙二醇-6000(PEG)、赤霉素(GA3)、硝普钠(SNP)、6-苄氨基嘌呤(6-BA)、萘乙酸(NAA)、吲哚-3-乙酸(IAA)等6种外源物质分别对葛麻姆种子进行浸种处理,测定葛麻姆种子的发芽指标和幼苗生长指标,探究不同预处理对葛麻姆种子萌发及幼苗生长的影响。结果表明,0.5~8.0 mg/L NAA对种子的萌发表现为抑制作用。5%~55%PEG、80~300 mg/L GA3、30~50 mg/L SNP、4~25 mg/L 6-BA和100~125 mg/L IAA对种子的萌发主要表现为促进作用,其中35%PEG处理的种子发芽指标最好,其发芽势、发芽率、发芽指数和活力指数分别为49.33%、66.00%、9.52、0.68。2~50 mg/L 6-BA和0.5~8.0 mg/L NAA不利于幼苗根系的生长。15%~45%PEG、80~120 mg/L GA3、10~50 mg/L SNP和75~200 mg/L IAA对幼苗生长有促进作用。研究表明,不同预处理对葛麻姆种子萌发及幼苗生长具有不同的影响,综合其种子发芽指标及幼苗生长指标,采用35%PEG浸种是葛麻姆种子的最佳处理方式。Polyethylene glycol-6000(PEG),gibberellin(GA3),sodium nitroprusside(SNP),6-benzylaminopurine(6-BA),naphthalene acetic acid(NAA)and indole-3-acetic acid(IAA)were used to soak the seeds,and the germination and growth indexes were determined.The effects of different pretreatments on the germination and seedling growth were investigated.The results showed that NAA(0.5~8.0 mg/L)exhibited an inhibitory effect on seed germination.However,PEG(5%~55%),GA3(80~300 mg/L),SNP(30~50 mg/L),6-BA(4~25 mg/L)and IAA(100~125 mg/L)could promote the germination.The germination index of seeds treated with PEG(35%)was the best,and the germination energy,germination rate,germination index and vigor index were 49.33%,66.00%,9.52 and 0.68,respectively.6-BA(2~50 mg/L)and NAA(0.5~8.0 mg/L)were not conducive to the elongation of seedling roots.However,PEG(15%~45%),GA3(80~120 mg/L),SNP(10~50 mg/L)and IAA(75~200 mg/L)could promote the growth of seedlings.The research showed that the treatments of different pretreatments had effects on the germination and seedling growth of Pueraria montana,and PEG(35%)soaking was the best treatment method according to the seed germination and seedling growth indexes.

关 键 词：葛麻姆 预处理 种子萌发 幼苗生长 

分 类 号：S351[农业科学—作物栽培与耕作技术]