高产稳产两系杂交早稻新组合株两优4024的选育与应用

Breeding and Application of New Two-line Early Indica Hybrid Rice Combination Zhuliangyou 4024 with High and Stable Yield

株两优4024是湖南农业大学用株洲市农业科学研究所选育的广亲和低温敏两用核不育系株1S与株叶形态优良、配合力好、抗逆性强的优质早稻父本4024选配而成的两系法杂交早稻新组合,具有产量高、稳产性好、生育期适宜等特点,在长江流域具有广泛的适应性。2009年3月通过湖南省农作物品种审定委员会审定(湘审稻2009005),2009年5月通过国家农作物品种审定委员会审定(国审稻2009010)。

Zhuliangyou 4024, derived from Zhu 1 S, a dual-purpose genic male sterile line with low critical temper- ature and wide compatibility introduced from Zhuzhou Agricuhural Research Institute, and 4204, an early rice cul- tivar with good plant type, high combining ability, strong stress resistance and fine grain quality, is a new two-line early hybrid rice combination developed by the Institute of Rice Science, Hunan Agricultural University. It is char- acteristic of high and stable yield, suitable maturity and wide adaptability in Yangtze River Valley. In March and May, 2009, it was registered and released to commercial production by the Hunan Provincial and the National Crop Variety Appraisal Committees, respectively.