【摘 要】
：
用本系水稻杂优室育成的31105S(晚粳)、31116S(中粳)为母本,与粳型、爪哇型的4个广亲和系品种配组,对F_1代超亲优势、竞争优势进行分析。结果表明,用广亲和性品种配组的F_1代
【机 构】
：
华中农业大学农学系,华中农业大学农学系,华中农业大学农学系,华中农业大学农学系,华中农业大学农学系
论文部分内容阅读
用本系水稻杂优室育成的31105S(晚粳)、31116S(中粳)为母本,与粳型、爪哇型的4个广亲和系品种配组,对F_1代超亲优势、竞争优势进行分析。结果表明,用广亲和性品种配组的F_1代,均有较强的竞争优势,其粳爪交的竞争优势明显强于粳粳交。供配的两种类型光敏核不育系,以中粳31116S与早轮回422、02428、CPSL017配组,竞争优势强,杂种熟期适当,有望选出强优组合。
31105S (late japonica rice), 31116S (middle japonica rice) bred from this hybrid rice house were used as the female parent and matched with 4 japonica and Javanese broad compatibility cultivars. Analyze. The results showed that the F1 progenies with wide compatibility varieties all had strong competitive advantages, and the competitive advantages of japonica hybrid rice was stronger than that of japonica rice. Two types of CMS lines were planted with medium japonica 31116S and early reincarnation 422,02428 and CPSL017, which had strong competitive advantages and proper maturity of hybrids.
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