沿河县11个水稻品种(系)的综合评价OA

To screen rice varieties(lines)suitable for promotion and cultivation in Yanhe County,this study analyzed the growth period,yield components,and grain quality of 10 major promoted varieties(lines),including Aofuyou287 and Qin-you808,using Yixiangyou2115 as the control(ck).The results showed that the growth periods of the 11 varieties(lines)ranged from 137 to 144 days.Except for Huazheyou210,which had a higher yield than the control,the yields of all other vari-eties(lines)were lower than that of ck.The yields ranked from high to low were for Huazheyou210,Yixiangyou2115,Jingli-angyou534,Taiyou390,Quanyousimiao,Aofuyou287,Yexiangyouyousi,Huazhongyou9367,Yexiangyou9901,Zhongzheyou8,and Taiyou808.The yield components with larger coefficients of variation among the varieties(lines)were grains per spike,filled grains per spike,and effective panicles,while plant height showed a smaller coefficient of variation.Membership func-tion analysis revealed considerable differences in quality among the varieties(lines).The chalky grain rate exhibited the larg-est coefficient of variation(52.97%),while the cooked rice score showed the smallest difference(2.73%).The comprehensive quality scores ranked from high to low were for Huazheyou210,Aofuyou287,Jingliangyou534,Quanyousimiao,Taiyou390,Yixiangyou2115,Taiyou808,Huazhongyou9367,Zhongzheyou8,Yexiangyou9901,and Yexiangyouyousi.