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根据玉米品比试验6个点的数据,对参试的14个玉米杂交种的13个主要性状进行同异联系势分析。结果表明,参试杂交种LZ11、LZ2、LZ4、LZ7和LZ8与理想品种的联系度在0.757 2～0.889 7之间,综合表现优良,可考虑参加玉米区域试验预试;其余品种表现良好或一般,需进一步试验观察。同异联系势分析法可以用于综合评价玉米杂交种的丰产性和稳产性,能够比较全面准确地判断玉米杂交种的优劣。
According to the data from 6 points of maize plot experiment, the 13 major traits of 14 maize hybrids tested were analyzed by the same-mean-variance method. The results showed that the correlation between the tested hybrids LZ11, LZ2, LZ4, LZ7 and LZ8 and the ideal variety was between 0.757 2 and 0.889 7, and the comprehensive performance was excellent, so it could be considered to participate in the pre-test of maize regional test; the other varieties performed well or generally , Need further experimental observation. The same-difference relationship analysis method can be used to evaluate the yield and stability of maize hybrids comprehensively, and can judge the merits of corn hybrids more completely and accurately.