9个杂交水稻品种在南县地区种植的比较试验

Variety Comparison Experiment of 9 Hybrid Rice Varieties Cultivated in Nanxian County

以南县地区一季稻主栽的常规稻品种黄华占为对照,分析比较了在湘北表现较好的Y两优900、Y两优2号、深两优5814等9个杂交水稻品种的产量、抗性和经济效益。结果表明,Y两优900、Y两优2号、两优6326、徽两优996、皖稻153、深两优5814和Y两优1号等7个品种的产量高于对照,分别比对照增产20.94%、17.11%、12.29%、7.43%、7.01%、4.16%和3.65%;其中,Y两优900、Y两优2号和两优6326等3个品种的经济效益明显高于对照,分别增加2 137.5、1 188.0和1 117.5元/hm2。这说明Y两优900、Y两优2号和两优6326能获得较高的单产和经济效益,适宜在南县地区推广种植。

Taking Huanghuazhan, a commonly cultivated one cropping rice variety in Nanxian county as the control, the study analyzed and compared the grain yield, resistance and economic benefit of 9 hybrid rice varieties with good performance in North Hunan area, such as Y Lianyou 900, Y Lianyou No.2 and Shen Lianyou 5814. Results showed that grain yields of 7 varieties, Y Lianyou 900, Y Lianyou No. 2, Lianyou 6326, Hui Liangyou 996, Wandao 153, Shen Lianyou 5814 and Y Liangyou No.1 were higher than that of the control, and increased by 20.94%, 17.11%, 12.29%, 7.43%, 7.01%, 4.16% and 3.65%, respectively. Meanwhile, economic benefits ofY Lianyou 900, Y Lianyou No.2 and Lianyou 6326 were higher than that of the control, and increased by 2 137.5, 1 188.0 and 1 117.5 yuan/hm2, respectively. As a result, it is indicated that these three varieties could have relatively high grain yield per unit area and economic benefits, and might be suitable for paddy fields in Nanxian County.