Note : 1 ) p = prefectural ; n = national . 2 ) hc = high combining ability ; sr = strong restoring ability ; gq = good quality ; rb = resistant to biast ; psr = persistent resistance of blast ; ct = cold tolerance ; hoc = high outcrossing rate ; hsy = high and stable yield ; wa = wide abaptability ; geq = good eating quality ; bp = big panicle ; hy = high yield ; mrb = moderate resistance of blast 武陵山区国家水稻品种区试有必要加快分熟组的步伐,同时建立专门的抗(耐)寒性鉴定基地,以期筛选出适应性更广,安全性更好的强优新组合。