9个杂交水稻品种在南县地区种植的比较试验

摘要

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2137.5、1188.0和1117.5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 com m only cultivated one cropping rice variety in N anxian county as the control,the study analyzed and com pared the grain yield,resistance and econom ic benefitof9 hybrid rice varieties w ith good perform ance in N orth Hunan area,such asY Lianyou 900,Y Lianyou N o.2 and Shen Lianyou 5814.R esults show ed thatgrain yields of7 varieties,Y Lianyou 900,Y Lianyou N o. 2,Lianyou 6326,HuiLiangyou 996,W andao 153,Shen Lianyou 5814 and Y Liangyou N o.1 w ere higher than thatof the control,and increased by 20.94% ,17.11% ,12.29% ,7.43% ,7.01% ,4.16% and 3.65% ,respectively.M eanw hile,econom ic benefitsofY Lianyou 900,Y Lianyou N o.2 and Lianyou 6326 w ere higherthan thatofthe control,and increased by 2 137.5,1 188.0 and 1 117.5 yuan/hm 2,respectively. A s a result,itis indicated thatthese three varieties could have relatively high grain yield perunitarea and econom ic benefits,and m ightbe suitable forpaddy fieldsin N anxian C ounty.