摘要
以84-15,A67为主体亲本,配制不同类型的9个杂交组合,研究了杂交后代农艺性状的分离规律。结果表明,F3、F4、F5稳定株系出现的频率分别为5.5%,18.6%和24.1%;84-15×84-1、A67×高粱稻和A67×94541F3代稳定株系频率分别为12.5%,20.0%和16.7%,其它杂交组合则无F3代稳定株系现象出现。证实了84-15,A67在杂交早期世代确有出现稳定株系的可能性。
Rice varieties 84-15 and A67 were employed as the principal parents to make nine crosses to study the segregation of agronomic characters in early filial generations. The results showed that the frequency of uniform lines in F 3,F 4, F 5 was 5.5%, 18.6% and 24.1%, respectively, among all nine crosses, but in F 3 generation only three crosses of 84-15×84-1, A67×Sorghum rice and A67×94541 showed 12.5 %, 20.0% and 16.7% of uniform lines respectively, the others did not have any uniform lines, which verifies that there does exist the possibility to acquire uniform lines in early segregating generations of 84-15 and A67.
出处
《杂交水稻》
CSCD
北大核心
1998年第5期4-6,共3页
Hybrid Rice
基金
湖北省科委重点项目
关键词
水稻
农艺性状
分离
早世代稳定
杂交后代
rice
agronomic characters
segregation
early generation uniformity