北方粳稻新品种(组合)产量性状及稳定性分析

Analysis on character of output and stability which is the new species of northern

以2005年北方区域试验金珠1号组新品种、组合为试材,对北方近年来育成的品种、组合进行产量性状及其稳定性分析,并在稳定性基础上进行聚类分析。结果表明,适应于北方粳稻区推广的水稻品种、组合,其产量稳定性参数宜大于1,且产量稳定性依赖于各产量构成性状的稳定性参数也应大于或接近于1。同时,提出在北方大面积范围产量达到600kg/667m2的品种、组合其产量构成应是667m2有效穗数为21万左右、穗粒数140粒左右、结实率80%以上、千粒重25g以上。

To analyze character of output and stability which is the new specie, it made Jinzhu-1 as experimental material, then carried out cluster analysis. The result indicated that the rice variety which was growed in north require stability parameter of yield should beyond 1, then stability parameter of yield character which was depended on stability of yield should beyond or equal to 1. At the same time it proposed that the fitting yield constitute should be guarantee that number of productive ear are about 210 thousand, number of grain per ear are about 140, ripening rate is 80% and thousand kerner weight is over 25 gram where grow rice can achieve 600 kg/667 m^2 in the north.