优质高产中粳稻淮稻18号的选育

为选育适宜苏中地区种植的水稻新品种,选用淮稻14号为母本、徐23121为父本杂交配组,经多年系统选育而成迟熟中粳稻新品种"淮稻18号"。该品种具有丰产性好、品质优、综合抗性强等特点,其全生育期155.1d,株高98.7cm,每穗实粒数121.9粒,结实率92.4%,千粒重28.0g。2012-2014年参加江苏省水稻新品种区域试验,淮稻18号每667m2平均产量分别达到709.7、660.1和658.0kg,较对照淮稻9号分别增产8.64%、7.19%和13.47%。2015年通过江苏省农作物品种审定委员会审定,适宜在江苏省苏中及南京、镇江、扬州丘陵地区种植。

Breeding High-yield,High-quality,Mid-season-ripening Japonica Rice,Huaidao 18

To breed a new rice variety suitable for cultivation in central Jiangsu,Huaidao 14 was crossed with Xu 23121.Through years of breeding and screening,a new mid-season-ripening Japonica rice,Huaidao 18,was selected.The new cultivar was characterized by high-yield,high-quality,strong over-all resistance,etc.It had an average growth period of 155.1 days,plant height of 98.7 cm,grain weight per panicle of 121.9 g,seed setting rate of 92.4％,and per 1000-grain weight of 28.0 g.In the 2012-2014 regional production trials in Jiangsu,it showed averagedannual yields of 709.7,660.1 and 658.0 kg · hm 2,representing the increases by 8.64％,7.19％ and 13.47％,respectively,for each year as compared to the reference,Huaidao 9.Subsequently,Huaidao 18 was certified by Jiangsu Committee for Crops Variety Registration in 2015.The new variety was,therefore,considered suitable for scale-up cultivation in central Jiangsu as well as hilly areasin Nanjing,Zhenjiang and Yangzhou.