呼和浩特地区玉米品种适应性分析

Analysis of Adaptability of Maize Varieties in Hohhot Area

针对呼和浩特地区玉米种植种类单一、品种退化严重、产量逐年下降等实际问题,于2018年和2019年在玉米主产区土默特左旗、和林格尔县和托克托县3个地区开展了小区玉米品种筛选试验,对比各地区不同玉米品种的农艺性状、产量及产量构成因素的差异。结果表明,各地区不同玉米品种株高、穗位高和茎粗差异显著,以先玉696、金韵308、先玉335表现最好。在产量方面,土默特左旗先玉696品种产量最高,和林格尔县金韵308品种产量表现最好,托克托县先玉335品种产量最高。综合分析,推荐金韵308和先玉696为呼和浩特玉米主产区高产优质栽培品种,其他玉米小规模种植地区以及小型农户种植亦可参考本试验结果。

In view of the practical problems in Hohhot,such as the single type of planted maize,the serious degradation of varieties,the year-to-year decline of yield,etc.In 2018 and 2019,the screening experiments of maize varieties were carried out in the main maize producing areas of Tumotezuo Banner,Helin County and Togtoh County to compare the agronomic characters,yield and yield components of different maize varieties in different regions.The results showed that there were significant differences in plant height,ear height and stem diameter among different maize varieties in different regions,Xianyu 696,Jinyun 308 and Xianyu 335 were the best.In terms of yield,the yield of Xianyu 696 was the highest in Tumotezuo Banner,the yield of Jinyun 308 was the highest in Helin County,and the yield of Xianyu 335 was the highest in Togtoh County.According to the comprehensive analysis,Jinyun 308 and Xianyu 696 were recommended as high-yield and high-quality cultivated varieties in the main maize producing areas of Hohhot.The results of this experiment could also provide references for other small-scale maize planting areas and small-type growers.