中国二系杂交粳稻种质资源的评价

Appraise of two-line system Japonica hybrid rice germplasm in China

通过1973年以后二系法杂交稻特别是二系法杂交粳稻的研究选育和示范生产情况调研,重点对不育系、恢复系及其杂交稻组合的相关信息进行整合,并从选育、系谱、类型以及特征特性等方面进行了评价分析。此外,还对部分二系和三系杂交粳稻品种(组合)的主要特征特性进行对比,认为三系杂交稻和二系杂交稻正处于齐头并进发展的态势。其结果可供涉及杂交稻的各领域提供参考利用。

Through investigation on the breeding and demonstration and production of two-line system hybrid rice particularly the two-line system japonica hybrid rice since 1973, the related information of the sterile line, restorer line and their hybrid rice grouping was integrated, and the analysis and appraise about the rice breeding, genealogy, type and characteristics was carried out. Besides, some primary characteristics of the two-line system japonica hybrid rice varieties and the ternary hybrid ones（grouping） were compared, indicating that the ternary hybrid rice and the two-line system hybrid rice were advancing side by side. Those results were good as references for study in hybrid rice related fields.