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采用ＮＣⅡ设计，用３个自交系和２个单交种测定中综３号８个改良群体的一般配合力。结果表明，单交种测验效果优于自交系测验效果。大多数性状上２个单交种测定结果与５个测验种总体测定结果高度正相关；３个自交系测验结果与总体测验结果之间在产量和果穗性状上相关性不显著。测验种一般配合力高低与测验效果呈不显著负相关。
The NC Ⅱ design was used to determine the general combining ability of 8 improved populations of Zhongzhong No.3 with 3 inbred lines and 2 single crosses. The results showed that single crosses test was better than inbred lines test results. In most traits, the results of two single crosses were highly positively correlated with the overall test results of five test species. The correlation between yield and ear traits was insignificant in the three inbred lines and the overall test results. There was no significant negative correlation between the general combining ability of test species and the test effect.