高产广适两系杂交水稻新组合C两优396的选育与应用

Breeding and Application of New Two-line Hybrid Rice Combination C Liangyou 396 with High Yield and Wide Adaptability

C两优396是湖南农业大学水稻科学研究所用自育的两用核不育系C815S为母本,R396为父本组配而成的两系法杂交水稻新组合。2005—2006年参加湖南省高产组区试,全生育期132.9d,比对照两优培九短4d,平均单产9.75t/hm2,比对照两优培九增产9.6%,排名第1;该组合还具有株叶形态优良、米质较好、抗逆性较强、适应性广等特点,2007年1月通过湖南省品种审定。

C Liangyou 396 （C815S/R396） is a new two-line hybrid rice combination developed by the Institute of Rice Science of Hunan Agricultural University. In Hunan Provincial regional trials in 2005--2006, it yielded highest （9.75 t/hm^2 ,9.6% higher than that of the check Liangyou Peijiu） among all tested hybrids and got matured in 132.9 days,4 days earlier than the check Liangyou Peijiu. The hybrid has the characteristics of high yield, good plant type, grain quality and stress resistance and wide adaptability. It was approved for release by the Hunan Provincial Crop Variety Appraisal Committee in January ,2007.