研究旨在筛选适宜酒泉地区推广种植的青贮玉米品种.试验通过灰色关联度分析对10个青贮玉米品种农艺性状、生产性能和营养品质进行综合评价分析.结果显示,大京九26干草产量最高,为39 476.56 kg/hm2;大京九26和北农青贮208株高分别为350.00、342.25 cm,高于其他品种;陇青贮1茎粗表现最好,为21.55 cm;敦青6和大京九26的叶长表现最好;酒685粗蛋白质(CP)含量最高,为8.50%;五谷丰贮1中性洗涤纤维(NDF)和酸性洗涤纤维(ADF)含量最高.加权关联度和等权关联度排名基本一致,排名前2位的分别是北农青贮208和大京九26.研究表明,适宜在酒泉地区推广种植的品种为北农青贮208和大京九26.
The study was to screen the maize varieties suitable for planting in Jiuquan area.The agronomic traits,production performance and nutritional quality of 10 maize varieties were evaluated by grey correlation analysis.The results showed that the highest hay yield of Dajingjiu 26 was 39 476.56 kg/hm2.The plant height of Dajingjiu 26 and Beinongqingzhu 208 were 350.00,342.25 cm,which was higher than that of other silages.The best stem size was Longqingzhu 1(21.55 cm).The varieties with the best leaf width and length were Dunqing 6 and Dajingjiu 26,respectively.The highest content of CP was Jiu 685,reaching 8.50%.The content of NDF and ADF were the highest in Wugufengzhu1.The ranking of weighted correlation degree and equal weight correlation degree was basically the same,and the top two were Beinongqingzhu 208 and Dajingjiu 26,respectively.The study indicates that the varieties suitable for planting in Jiuquan area are Beinongqingzhu 208 and Dajingjiu 26.