江苏省杂交晚粳与迟熟中粳主要性状的比较分析

通过对2010~2012年江苏省杂交晚粳和迟熟中粳3年区域试验结果的比较,分析了其主要农艺性状和品质性状。结果表明:与迟熟中粳相比,杂交晚粳组合表现为穗大粒多,增产优势明显,但结实率偏低;主要品质性状表现为整体水平低于常规品种,但具有一定的粒型优势,最后对江苏省杂交晚粳发展中存在的问题和发展方向进行了探讨。

Comparison Analysis of Major Characters between Hybrid Late Japonica Rice and Conventional Late-maturing Middle Japonica Rice in Jiangsu Province

According to the data of regional tests from 2010 to 2012 in Jiangsu province , the major agronomic and quality characters were compared between hybrid late japonica rice and conventional late -maturing middle japonica rice .The results showed that：in comparison with conventional late -maturing middle japonica rice , hybrid late japonica rice had larger spikes , more grains , higher yield , and relatively lower seed setting rate .The main quality characters （ except for grain shape ） of hybrid late japonica rice were generally lower than those of conventional late -maturing middle japonica rice .Finally, the author discussed the existent problems and developmental direction of hybrid late japonica rice in Jiangsu province .