中国林学（英文版）2007，Vol.9Issue(4)：283-286,4.
Polyploid induction of Lespedeza formosa by colchicine treatment
Polyploid induction of Lespedeza formosa by colchicine treatment
Li Wei 1Hu Dong-nan 2Li Hui 1Chen Xiao-yang1
作者信息
- 1. College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083. P. R. China
- 2. College of Landscape Architecture and Art,Jiangxi Agriculture University, Nanchang 330045,P. R. China
- 折叠
摘要
Abstract
Polyploid induction has been conducted by different colchicines concentrations with seed. hypocotyl and apices of Lespedeza formosa. Morphological variation and amounts of chromosome about the polyploidy have also been analyzed. Results show that the best material for polyploid induction of L. formosa is the new apices from seed germination, with an induction rate of 44. 4% at 0. 1% colchicines concentration and 36 hours of treatment time. Compared with normal diploid plants. the polyploidy plants of L. formosa inducted in our experiments have short stature and stems with thick and wide leaves. Cytological studies show that the changed seedlings,whose morphology has changed dramatically, are tetraploid, with 44 (2n=4x=44)chromosomes in the somatic cells.关键词
Lespedeza formosa, colchicincs,polyploid induction, morphological variationKey words
Lespedeza formosa, colchicincs,polyploid induction, morphological variation分类
农业科技引用本文复制引用
Li Wei,Hu Dong-nan,Li Hui,Chen Xiao-yang..Polyploid induction of Lespedeza formosa by colchicine treatment[J].中国林学（英文版）,2007,9(4):283-286,4.
