为了明确早稻适合湖北省秋种(翻秋)的品种特性,选择12个早稻品种,并以2个晚稻品种作为对照,考察早稻秋种齐穗期、产量构成及其与早稻自身特性的相关性.结果表明,在7月8日以前播种应选用两优287和金优402；7月8～18日播种应选用金早47或两优287；7月23日及以后不宜再进行早稻翻秋种植.荣优9号、湘早籼24以及晚稻五丰优T025在预设的播期产量均较低,不宜作为湖北省抗灾补救品种.早稻正常生育期与秋种产量呈负相关.播期越早应选择穗粒数较多、分蘖能力较强的品种,反之选择穗粒数较少的品种.早稻秋种应优先选择生育期较短的品种,同时还应采取适当的栽培措施促进水稻后期灌浆.%To clarify the characteristics of early rice varieties suitable for autumn planting in Hubei province, 12 early rice cultivars were selected with two late rice varieties as control to investigate the yield components, heading stage of autumn planting-early rice as well as the correlation of yield components and the characteristic of early rice itself. The results showed that Liangyou 287 and Jinyou 402 should be selected when the early rice sown before July 8; when sown from July 8th to the 18th, Jinyou 47 or Liangyou 287 should be used; autumn planting of early rice should not be carried out after July 23, Yield of Rongyou 9, Xiangzaoxian 24 and Fengyou T025 were lower when sowing at scheduled time thus should not be applied as autumn planting cultivar in Hubei province. The regular growth period of early rice was negatively correlated with the yield of autumn planting. Early rice with greater tillering ability and more grains per panicle should be selected for earlier sowing date, and vice versa. Prior consideration should be given to early rice varieties with shorter growing period when selecting autumn planting early rice; meanwhile, suitable cultivation measures should be conducted to promote grain-filling of rice.
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