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对从国际玉米小麦改良中心 (CIMMYT)引入的及省内自育的 10个优质蛋白玉米 (QPM)优良系进行了配合力分析及杂模式的初步研究。通过部分双列杂交获得 4 5个杂交组合 ,并种植在云南省的3种不同生态条件下进行观察鉴定。产量的方差分析结果表明 ,品种之间、环境之间的差异达到极显著水平 ,而重复之间不显著 ;产量的一般配合力差异达极显著水平 ,而特殊配合力的差异不显著。杂交组合 CML147× YML2 3具有最高产量 (85 12 .95 kg/hm2 ) ,杂交组合 YML10 2× YML12具有最低产量 (1486.0 5 kg/hm2 )。自交系 YML2 3产量的一般配合力效应值最高 (90 .90 ) ,自交系 CML149(35 .19)和 CML147(30 .5 7)产量的一般配合力效应值也较高 ;而自交系 CML174产量的一般配合力效应值最低 (- 66.2 3)。自交系 CML 140与 YML 10 2具有最高的产量特殊配合力效应值 (95 .95 ) ,自交系CML 140与 YML 2 9产量的特殊配合力效应值也较高 (86.31) ;而自交系 YML 12与 YML 10 2产量的特殊配合力效应值最低 (- 178.19)。根据杂交组合产量性状的配合力分析 ,可初步将这 10个优质蛋白玉米自交系划分为 4个杂种优势群和 4种杂种优势模式
The analysis of combining ability and the preliminary study of miscellaneous patterns of 10 high quality protein maize (QPM) introduced from International Maize and Wheat Improvement Center (CIMMYT) and in the province were carried out. A total of 45 hybrid combinations were obtained by partial double crosses and were planted in three different ecological conditions in Yunnan Province for observation and identification. Analysis of variance of yield showed that there was a significant level of difference between the varieties and the environment, but no significant difference between the two varieties. The difference of the general combining ability of the yield reached extremely significant level, but the difference of the special combining ability was not significant. The hybrid combination CML147 × YML2 3 had the highest yield (85 12 .95 kg / hm2) and the hybrid combination YML10 2 × YML12 had the lowest yield (1486.0 5 kg / hm2). The inbred line YML2 3 had the highest general combining ability (90.90), and the inbred line CML149 (35.19) and CML147 (30.57) showed higher general combining ability The lowest general combining ability of CML174 was the lowest (- 66.2 3). Inbred lines CML 140 and YML 10 2 had the highest yield-specific combining ability (95.95) and the special combining ability (86.31) for inbred lines CML 140 and YML 2 9. The yield of YML 12 and YML 10 2 had the lowest effect of combining ability (- 178.19). According to the analysis of combining ability of yield traits in hybrid combinations, the 10 high quality protein maize inbred lines can be divided into 4 heterosis groups and 4 heterosis modes