白魔芋多倍体诱导研究初报  

Preliminary Study on the Polyploidy Induction of Amorphophallus albus

作　　者：刘好霞[1] 高启国[1] 夏永久[2] 张盛林[1] 

机构地区：[1]重庆市蔬菜学重点实验室,西南大学园艺园林学院,重庆400716 [2]西南大学资源环境学院,重庆400716

出　　处：《中国农学通报》2006年第11期83-85,共3页Chinese Agricultural Science Bulletin

摘　　要：采用种子浸泡法和根状茎顶芽滴液法进行白魔芋多倍体诱导,比较了不同秋水仙素浓度和不同处理时间对出苗率和变异率的影响。结果表明,滴液法对材料的毒害性更小,经同一浓度秋水仙素溶液处理后出苗率和植株形态变异率均高于种子浸泡法,但诱变加倍的效果不如浸泡法。实验中获得一株纯合四倍体植株,由0.20%秋水仙素溶液处理种子48h诱变得到。Two methods, soaking seeds and dropping apical buds of rhizomes, are adopted to induce polyploidy of Amorphophallus albus. In order to obtain the most effective method of induction polyploid, the seedling rates and variance rates are compared by different concentrations of colchicine solution and different treatment time. The result shows that the seedling rates and variance rates of dropping rhizomes buds are higher than those of soaking seeds method, but the effect of induction polyploidy is inferior to soaking seeds. One tetraploid of A. a/bus is gotten by soaking seeds for 48 hours with 0.20% colchicine solution.

关 键 词：白魔芋 多倍体 秋水仙素 诱导 变异 

分 类 号：S632.9[农业科学—蔬菜学] S535.2[农业科学—园艺学]