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对福建省育成的6个大麦品种(系)进行两个年度的产量及其构成因素的稳定性测定结果表明:(1)与对照相比,育成的大麦品系产量提高9.2%~16.6%,有效穗、穗粒数和千粒重都有不同程度改善,但在各试点表现不同,品种与地点互作显著。(2)丰产、稳产性较好,各构成因素相对比较稳定和协调的品种为闽麦06;莆麦50丰产性较好,但稳产性偏差(有效穗,其余两个因素稍好);莆麦93、闽诱3号和泉1418产量优于对照,稳产性较好,除泉1418穗粒数稳定度紊乱外,其余相对都比较稳定;对照品种莆大麦4号产量稳定性很差,产量构成因素的稳定度也较乱。(3)产量及其构成因素平均值与各自稳定性参数(b值)及变异系数无显著相关,而b值与变异系数多表现显著正相关,产量稳定性参数与各构成因素稳定性参数之间多表现相关不显著
The results of the stability analysis of the yield and its components of six barley cultivars (lines) bred in Fujian Province for two years showed that: (1) The yield of bred barley lines increased by 9.2% ~ 16 compared with the control. 6%, effective panicle, grains per spike and 1000-grain weight all improved to some extent, but the performance of each experiment was different. (2) High-yielding and stable yield were better, and the varieties with relatively stable and harmonious components were Minmai 06 and Pimao 50 with good yield but with poor stability (the effective spike was slightly better than the other two) The yield of wheat 93, Minlou No.3 and Quan 1418 was better than that of the control, and the stable yield was good. The stability of spike grain number was not stable except for Quan 1418, while the rest was relatively stable. The stability of factors is more chaotic. (3) There was no significant correlation between the average yield and its constituent factors and their respective stability parameters (b value) and coefficient of variation, while b value was significantly and positively correlated with the coefficient of variation significantly. The yield stability parameters and the stability parameters of each component Inter-related performance was not significant