【摘要】 采用复交的方法,打破一些不利的连锁,把优质、丰产、抗旱、耐盐和强恢复基因聚集于一个品种之中,育成了适于水栽、旱种和做恢复系的多功能粳稻品种天津1244,并在天津、河南、山东等省市大面积试种成功.春播旱种比对照增产14.5%,麦后旱种比对照增产23.6%,做恢复系子一代结实率80.9—93.6%,比秀优57增产5—16.5%.更多还原

【Abstract】 Having adopted the double crossing method to break up some linkages of unfavorable genes and gathered the good quality, high yield, dry resistance, saltendurance and strong restoring gene, had been bred a keng rice variety --Tianjin 1244 which would adapt to water culture, dry culture and be utilized as a restoring line. This variety had been trial cultivated successfully in Tian-jin, Henan, Shandong etc. Its grain yield had increased by 14.5%, 23.6% under spring dry culture aad after-wheat dry culture conditions, respectively. Its F1 setting percentage was 80.9-93.6% while used as restoring line and grain yield increased by 5-16.5% than check variety Xiuyou 57.更多还原