【摘要】 运用间比法进行了玉米组合分析鉴定试验，研究了27个玉米组合在3个不同试验地的各个农艺性状，以期筛选出适合当地的高产组合。结果表明，27个玉米组合在不同的试验地点，其生殖生长天数、株高、穗位高、穗位系数、病害发生以及收获籽粒重和籽粒含水量均不一致。在产量方面，在周口市产量高于对照10%的组合有18个，其中组合XX 13、XX 7和XX 5位列前三位；在驻马店市产量高于10%的仅有组合XX 7,组合XX 17增产仅8.50%,居第二位，组合XX 9增产仅6.08%,居第三位；在新乡市产量高于对照10%的组合有24个，组合XX 1、XX 14和XX 9位列前三位。综合三地表现，筛选出组合XX 7和XX 17,其中组合XX 7在三地产量均高于对照10%以上，组合XX 17在周口市和新乡市比对照增产10%以上，在驻马店市比对照增产5%以上。更多还原

【Abstract】 Maize combination analysis and identification experiment was carried out by using partition compares method, and the agronomic characters of 27 maize combinations were studied in 3 different test sites, in order to screen out high yield combinations suitable for the local area. The results showed that the reproductive growth days, plant height, ear position height, ear position coefficient, disease occurrence, harvest grain weight and grain water content of 27 maize combinations were not consistent at different test sites. In terms of yield, there were 18 combinations whose yield was 10% higher than that of the control in Zhoukou City, among which the combinations XX 13, XX 7 and XX 5 ranked the first three. In Zhumadian city, only the combination XX 7, the combination XX 17 only increased by 8.50% against the control, ranking the second, the combination XX 9 only increased by 6.08%, ranking the third. In Xinxiang city, there were 24 combinations whose yield was 10% higher than that of the control, and the combinations XX 1, XX 14 and XX 9 ranked the first three. Based on the performance of the three sites, the yield of the combination XX 7 and XX 17 was more than 10% higher than that of the control in the three sites. The yield of the combination XX 17 was more than 10% higher than that of the control in Zhoukou City and Xinxiang City, and 5% higher than that of the control in Zhumadian City.更多还原