摘要:
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,品种与地点互作显着。(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)及变异系数无显着相关,而b值与变异系数多表现显着正相关,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着
Abstract:
The stabilities of yield and its components of six barbeys varieties(line)breeded in Fujian were determined in two years.The results are as follows,(1)with the imorovement of effective ears,ear grains and 1000-grain weight,the yield of new breeded line increased by 9.2%～16.6%as compared with CK(Pudamai 4),but the performance of these characters in experimental sites was different,and the remarkable interaction was found between the varieties and the experimental sites(2)Minmai 06 showed high and stable yields and its yield components were stable and coordi-nate.Pumai 50 showed some high but unstable yields mainly due to unstable ear number.The yield and its stability of Pumai 93,Minyou 3 and Quan 1418 were better than CK,and their yield cornpo-nents were relatively stable except for the unstable ear grains of Quan 1418.The CK showed un-stable vields and its yield component stability was confused(3)No correlation was found of the mean values of yield and yield components with the parameters of their stabilities(Nand the varia-tion coefficients(c,v)of the characters,but the values of band C.V showed remarhHecorrela-tions.The stability parameters of yield and yield components showed no remarkable correlations.
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