^60Co—r射线辐射保持系嘉浙B的M2代突变类型分析  

Analysis of Mutants in M2 Generation of Jiazhe B with ~(60)C_o- r Rays

作　　者：富昊伟[1] 王国夫[2] 等 Fu Haowei~1 Wang guofu~2 Ma Xinhua~1(1. Jiaxing Agricultural Institute, Jiaxing, Zhejiang, 314016;2. Department of Biology, Shaoxing University, Shaoxing, Zhejiang, 312000)

机构地区：[1]浙江省嘉兴市农科院，浙江嘉兴314016 [2]绍兴文理学院生物系，浙江绍兴312000

出　　处：《绍兴文理学院学报（自然科学版）》2002年第2期43-44,共2页Journal of Shaoxing College of Arts and Sciences

基　　金：浙江省重大项目“8812”计划资助(001112030-6)

摘　　要：用^60Cr-r射线直接辐射保持系嘉浙B诱发突变，M2代出现多种变异，按变异频率大小从高到底依次为：叶色突变＞早熟突变＞颖尖不退花突变＞高外露率突变＞薄颖壳突变＞花时早＞突变紫稃尖突变＞迟熟突变，上述8个选择项的总突变频率达到2．419％，说明辐射诱变改良保持系性状十分有效。Several types of mutants are obtained in M2 generation by using ~(60) C_o-r ray treatmentin dry seeds of MAINTAINER Jiazhe B.Their total mutation frequencies are 2.419%.The orderof mutation frequencies from high to low is as follows:the leaf color,early mutation,no-husk tipanatheses,high bared rate of stigma exsertion,thin grain husk,early anthesis time,purplish husktip and the late mutation.

关 键 词：辐射诱变 保持系 突变频率 嘉浙B 水稻 育种 

分 类 号：S511[农业科学—作物学]