荆芥多倍体的诱导及农艺性状评价  

Polyploid Induction and Agronomic Evaluation of Schizonepeta tenuifolia

作　　者：齐琳琳 温春秀[1] 刘灵娣[1] 姜涛 QI Lin-lin;WEN Chun-xiu;LIU Ling-di(Economic Crop Research Institute,Hebei Academy of Agricultural and Forestry Sciences/Hebei Medical Plant Engineering Technology Research Center,Shijiazhuang,Hebei 050051)

机构地区：[1]河北省农林科学院经济作物研究所/河北省药用植物工程技术研究中心,河北石家庄050051

出　　处：《安徽农业科学》2024年第3期175-178,共4页Journal of Anhui Agricultural Sciences

基　　金：财政部和农业农村部:国家现代农业产业技术体系(CARS-21)。

摘　　要：以荆芥种子萌发的幼苗为材料,开展秋水仙素诱导染色体倍性变异的最佳浓度和最适处理时间研究,调查比较多倍体植株的农艺性状。结果表明:用0.10%秋水仙素溶液处理荆芥幼苗生长点3 d最有利于四倍体的产生,诱导率达到1.15%。显微镜观察变异植株根尖染色体数目为2n=4x=24。田间表现四倍体植株较二倍体植株叶片厚大、叶色浓绿、穗多且密、种子大,且四倍体植株较二倍体植株有效成分含量提高。Using germinating seedlings of Schizonepeta tenuifolia as materials,the optimum concentration and treatment time of colchicine induced chromosomal ploidy variation were carried out,the agronomic characters of polyploid plants were investigated and compared.The results showed that 0.10%colchicine solution was the most beneficial to tetraploid production at the growth point 3 d of Schizonepeta tenuifolia seedlings,and the induction rate reached 1.15%.The number of chromosome in the root tip of the mutant plants was 2n=4x=24.Compared with diploid plants,tetraploid plants had thicker leaves,darker green leaves,more dense ears and larger seeds,and the content of effective components in tetraploid plants was higher than that in diploid plants.

关 键 词：荆芥 秋水仙素 多倍体 农艺性状 

分 类 号：S567[农业科学—中草药栽培]