高产杂交水稻新品种川农优528的选育

Breeding of a New High-yielding Hybrid Rice Combination "Chuannongyou 528"

川农优528是四川农业大学水稻研究所和重庆三峡农业科学研究所种子开发公司用恢复系蜀恢528与不育系Ⅱ-32A配组育成的中籼三系杂交水稻新组合。该组合具有产量高、稳产性好、抗性强、综合性状好、制种产量高等特点,2005～2006年参加重庆市区试,平均单产8.53 t/hm2,较对照Ⅱ优838增产7.24%。2007年通过重庆市农作物品种审定委员会审定(渝审稻2007003)。该组合适宜重庆及相同生态区域海拔800m以下稻区作中稻种植。

Chuannongyou 528 is a new three-line indica hybrid rice combination from restorer line ＂Shuhui 528＂ and the CMS line ＂Ⅱ-32A＂ bred by Rice Research Institute of Sichuan Agricultural University and Seed Development Corporation of Three Gorge Agricultural Research Institute of Chongqing.The combination has the characteristics of high yield,stable yield,disease resistance,good integrated traits and high seed yield.In the 2005~2006 regional test of Chongqing,its average yield was 8.53t/hm2,and the yield increase rate was 7.24% than Ⅱyou838 control.It was registered by the Chongqing Crop Variety Approval in 2007（＂Yu 2007003 Rice Trial＂）.The combination can be planted as medium rice in rice regions of Chongqing and the same ecological areas with an elevation of less than 800m.