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以欧洲玉米种质BC8241Ht直选系南21-3及其改良系为材料,按NCⅡ杂交模式,应用灰色关联分析法对直选系南21-3及其改良系进行综合评价。结果表明,以BC8241Ht种质作为核心育种材料所实施的一系列改良选择,对提高自交系的配合力和杂交后代的综合表现效果是明显的。以配合力或实际测定值作为评价依据,其评价效果是一致的。
In this study, Southern 21-3 and its improved lines of European maize germplasm BC8241Ht were used as materials. According to the NC Ⅱ hybridization pattern, the gray correlation analysis method was used to evaluate the south 21-3 and its improved lines. The results showed that using BC8241Ht germplasm as a core breeding material to implement a series of improved selection, to improve the combining ability of inbred lines and hybrid progeny comprehensive performance effect is obvious. With the combining ability or the actual measured value as the evaluation basis, the evaluation effect is consistent.