江淮地区玉米品种适宜性研究

Study on Adaptability of Maize Variety in Jianghuai Region

为筛选出适宜江淮地区种植的玉米品种,以生产中12个主推玉米品种为试验材料,从丰产性、稳产性、抗病性及经济性状等角度开展该区域玉米品种适应性研究。结果表明,不同年度间和不同玉米品种间产量存在显著差异,产量与穗长、穗粒数和千粒重成显著正相关关系。不同品种产量变异系数和产量可持续性指数不同,丰产稳产性品种年度间变异系数较小,产量可持续性指数较大,且为抗锈病、抗倒伏品种。综合评价表明,庐玉9105、登海605、蠡玉16和庐玉9104抗锈病、抗倒伏,具有较强的丰产稳产性,适宜在江淮地区种植。

In order to select maize varieties suitable for planting in Jianghuai region,12 main promotional maize varieties in production were used as experimental materials,and the adaptability of maize varieties in this region was studied from the perspectives of high yield,stable yield,disease resistance and economic characters.The results showed that there were significant differences in yield among different years and different maize varieties.There was a significant positive correlation between yield and ear length,grain number per ear and 1000-grain weight.The yield variation coefficient and yield sustainability index varied from variety to variety.The high and stable yield varieties had smaller variation coefficient and higher yield sustainability index,which also had resistance to southern rust and lodging properties.The comprehensive evaluation showed that Luyu 9105,Denghai 605,Liyu 16 and Luyu 9104 had resistance to southern rust and lodging,and had high and stable yield,which were suitable for planting in the Jianghuai region.