为筛选优质、高产及稳产再生稻品种,满足重庆地区对再生稻种植的需求,选用12个品质较优的杂交水稻品种,在重庆市各再生稻产区开展多点试验,筛选再生萌芽期耐热性好、再生能力强、产量高的再生稻品种.结果表明:中稻再生稻两季综合,宜香优1108、深两优5814、德香4103和川农优528品种的产量优于对照(准两优527),适宜在重庆再生稻产区推广应用.其中,宜香优1108在5个试验点的2季平均产量为13 173.3 kg/hm2,较对照增产7.79％;深两优5814平均产量12 879 kg/hm2较对照增产5.38％.%To screen ratoon rice cultivars with high and stable yield,high quality,which were suitable for planting in Chongqing,a multi-point experiment was conducted in various ratoon rice production areas with 12 high-quality hybrid rice cultivars,to find out the ratoon rice cultivars with good heat resistance,strong regeneration capacity and high yield.Results:With the integrated performance of middle-season rice and ratoon rice,the rice cultivars,including Yixiangyou 1108,Shenliangyou 5814,Dexiang 4103 and Chuannongyou 528 were of higher yield than the control Zhunliangyou 527,which were suitable for popularization and application in Chongqing ratoon rice production areas.The two-season mean yield of Yixiangyou 1108 and Shenliangyou 5814 in five test sites were 13 173.3 kg/hm2 and 12 879 kg/hm2,higher than the control by 7.79％oo and 5.38％ respectively.
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