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以丰两优香1号、德优8258和新两优223为试验材料,探究湖北省再生稻适宜的播种期和影响再生季稻产量的主要产量构成因子。结果表明播种期对头季稻产量影响较小,对再生季稻产量影响显著。其中,3月24日播种的丰两优香1号和新两优223,再生季稻产量最高,分别为6 391.70和5 843.91kg/hm~2;3月30日播种的德优8258再生季稻产量最高,为5 723.93kg/hm~2。再生季稻产量随再生芽数、有效穗数和结实率的增加而显著增加。研究表明在湖北省,丰两优香1号和新两优223可在3月24日播种,德优8258可在3月30日播种。
With Fenglianyouxiang 1, Teyou 8258 and Xinliangyou 223 as test materials, the suitable sowing dates and the main factors affecting the yield of regenerated rice in Hubei Province were explored. The results showed that sowing date had little effect on the yield of the first season rice and had a significant effect on the yield of rice in the second season. Among them, Fengluyouxiang No.1 and Xinliangyou223 planted on March 24 had the highest yield of reclaimed rice, which was 6 391.70 and 5 843.91kg / hm 2, respectively. On March 30, the deyou 8258 The highest yield of rice was 5 723.93 kg / hm ~ 2. The yield of reclaimed rice increased significantly with the number of regenerated buds, effective panicles and seed setting rate. Studies have shown that in Hubei Province, Feng Liang You You 1 and Xinliangyou 223 can be planted on March 24, De You 8258 can be sown on March 30.