定西市旱作区玉米新品种适应性探索

Contrast Test of Maize New Varieties in the Arid Areas of Dingxi

为了优化定西市旱作区玉米种植结构,采用3年的单因素随机区组设计,定西市农业技术推广中心对引进的6个玉米新品种进行品种比较试验研究。结果表明,在定西市旱作农业区全膜双垄沟播条件下,金穗1203和宁玉501属于中早熟品种,奥玉3804属于中晚熟品种;奥玉3804、宁玉501和金穗1203综合经济性状表现较好,株高及穗位适宜,果穗长度较长,秃顶率低,果穗粒数多,百粒重高,产量高,对锈病、红叶病和穗腐病均达到抗水平以上,是整体抗性较好的理想品种。综合比较,奥玉3804、宁玉501、金穗1203适宜在定西市旱作区推广种植。

In order to optimize the maize planting structure in Arid Areas of Dingxi. The 6 new maize varieties were introduced by farming technology extension center of Dingxi and the contrast experiment based on 3 - year single - factor randomized block design were studied. The results showed that Jinsuil203 and NingyuS01 belong to the early varieties, Aoyu3804 belongs to the late - maturing varieties in the condition of entire membrane double ridges trench sowing. Especially the Jinsui1203, NingyuS01and Aoyu3804, they had the good comprehensive characters, suitable strain height and ear position, longer ear length, lower blighted grain rate, multiple grains per spike, higher 100 -seed weight and equivalent yield, and they were the ideal varieties that resistant to all three diseases （rust, red leaf diseases, ear rot）. Comprehensive comparison, the Jinsui1203, Ningyu501 and Aoyu3804 were picked out to be plan- ted and extended in the arid areas of Dingxi city.