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本试验对15个玉米杂交种新品种在大连市6个试点进行了丰产性和适应性的鉴定,以东单60为对照。调查了各玉米杂交种的农艺性状、产量构成因素、抗病性和抗倒伏性等。结果表明:玉米杂交种大农6号平均产量为9 474kg/hm2,比对照品种东单60增产20.6%,居第1位;丹大186平均产量9 209kg/hm2,比对照品种东单60增产17.2%,居第2位;致泰一号平均产量8 873kg/hm2,比对照品种东单60增产12.9%,居第3位;诚玉3号平均产量8 836kg/hm2,比对照增产12.6%,居第4位;这4个品种丰产性、稳产性和适应性较好,均抗大斑病,小斑病,抗丝黑穗、黑粉病,抗靑枯病,抗倒伏,适宜在大连地区种植。通过本次试验,我们对各玉米新组合在大连地区的丰产性、抗逆性及适应性有了进一步的了解,为生产上应用提供了依据。
In this experiment, six maize hybrids of 15 maize hybrids were tested for their high yield and adaptability in six pilot plots in Dalian City. Dongdan 60 was used as control. The agronomic traits, yield components, disease resistance and lodging resistance of each maize hybrid were investigated. The results showed that the average yield of maize hybrid cultivar Dainong 6 was 9 474kg / hm2, which increased by 20.6% than that of Dongdan 60, which ranked No. 1; the average yield of Dan 186 was 9 209kg / hm2, increased by 17.2% , Ranking No. 2; the average yield of Zhitai 1 was 8 873kg / hm2, which increased 12.9% over the control variety Dongdan 60, ranking No. 3; the average yield of Chengyu 3 was 8 836kg / hm2, increased by 12.6% 4; these four varieties of high yield, good stability and adaptability, are resistant to big leaf spot, small spot disease, anti-smut, smut, anti-leaf blight, lodging, suitable for planting in Dalian . Through this experiment, we have a better understanding of the high yield, resistance and adaptability of the new combinations of maize in Dalian, which provide the basis for the application of production.