摘要
对几个基本育成的广亲和恢复系的广亲和性和恢复力进行了验证；总结出广亲和恢复系可通过广亲和系／恢复系（粳或籼）的途径育成的结论；同时，还对广亲和恢复系在亚种间杂种优势利用中的有关问题作了讨论。
In 1992, 4 widely - compatible restorer (WCR) lines (T32, T42, R30, t384) were crossed to 7 CMS lines (4 indica and 3 japonica) to test and verify their wide compatibility and restoring ability. The results showed that the averaged seed setting rates of F1 hybrids of T32,T42, R30 and t384 were 76.8%, 84.9%, 81.6% and 86.8% respectively, which indicated that they were all WCRs with a wide spectrum of compatibility and restoring ability to CMS lines. The pedigree was analyzed to the selected WCR lines and it was found that by way of crossing widely-compatible varieties (WCVs) with restorers, the WCRs could be acquired. In the paper, some problems related to WCRs in the utilization of heterosis between rice subspecies were also discussed.
出处
《杂交水稻》
CSCD
北大核心
1993年第4期5-8,共4页
Hybrid Rice
关键词
杂交稻
广亲和性
杂交育种
widely-compatible restorer
wide compatibility
restoring ability
breeding method
rice
