辽宁省水稻品种品质性状及丰稳性分析

Analysis of Quality Traits and Abundance and Stability of Rice Varieties in Liaoning Province

以2023年辽宁省水稻区域试验中晚熟组的23个品种试验数据为基础进行品种品质性状和丰产性、稳定性分析。结果表明:11个品质性状的变异系数在0.93%~70.00%,11个品质性状间存在着不同程度的相关性,加工因子、直链淀粉因子、碱消因子、垩白因子、蛋白质因子共同影响着品种品质性状的综合表现。利用变异系数、回归系数、高稳系数、品种产量对23个品种进行丰稳性分析,结果表明:高稳系数、回归系数、品种产量可较好的区分品种的丰产性、稳产性,同时,水稻品种丰产性与稳定性参数间存在着明显的负相关性。在此基础上,通过聚类分析、方差比较显示出天隆粳224、辽粳169、盐粳66、天隆粳234、天隆粳788、花粳1607、盐粳945、辽粳1920等品种产量水平和稳定性较好。

Based on the experimental data of 23 varieties in the middle and late maturing group of rice regional test in Liaoning Province in 2023,the quality traits,high yield and stability of varieties were analyzed.The results showed that the coefficients of variation of 11 quality traits ranged from 0.93%to 70.00%,and there were different degrees of correlation among them.Processing factor,amylose factor,alkali elimination factor,chalkiness factor and protein factor all affected the comprehensive performance of quality traits of varieties.The abundance and stability of 23 rice varieties were analyzed by using coefficient of variation,regression coefficient,high stability coefficient and variety yield.The results showed that high stability coefficient,regression coefficient and variety yield could better distinguish high yield and stable yield of rice varieties,and there was obvious negative correlation between high yield and stability parameters of rice varieties.On this basis,cluster analysis and variance comparison showed that Tianlonggeng-224,Liaogeng-169,Yangeng-66,Tianlonggeng-234,Tianlonggeng-788,Huageng-1607,Yangeng-945 and Liaogeng-1920 had better yield level and stability.