“川麦42”ד川农16”重组自交系农艺性状分析

Evaluation of important agronomic traits in recombinant inbred Lines of Chuanmai 42×Chuannong 16

利用“川麦42”ד川农16”构建的重组自交系群体(127个株系),对抽穗期、株高、穗长、千粒重等10个农艺性状进行了研究,结果表明,各性状在RIL群体中呈连续变异,分布频率基本符合正态分布,同时存在双向超亲分离现象。此外,对群体中农艺性状突出的株系进行了分析,6个株系表现为产量超高亲20%,19个株系的综合性状均较好。

Several Important agronomic traits, such as heading date, plant height, panicle length, 1000-grain weight etc, were investigated by using a set of 127 recombinant inbred lines （RILs） derived from Chuanmai 42 × Chuannong 16. The results indicated that the frequency of the traits was in accordance with normal distribution. Some elite lines with good agronomic traits and out-yielding the high yield parent Chuanmai 42 by 20 % were selected. Those elite lines could be utilized for the further improvement of the wheat yield potential in Sichuan.