湖南农业科学Issue(3)：9-15,49,8.DOI:10.16498/j.cnki.hnnykx.2026.003.002
春夏不同播期对湖南省不同玉米品种农艺性状的影响
Effect of Different Sowing Dates in Spring and Summer on Agronomic Traits of Different Maize Varieties in Hunan Province
摘要
Abstract
To select maize varieties with high and stable yields and suitable for sowing in spring and summer in Hunan Province,this study used 18 commercially available maize varieties as materials to systematically compare the yield,growth period,stress resistance,and overall field performance of each variety between spring sowing and summer sowing.The results showed that sowing date and its interaction with variety had highly significant effect on maize grain yield.Compared with spring sowing,summer sowing resulted in 11-17 d shortening in growth period,increases of 11.5-181.0℃in effective accumulative temperature,decreases of 14.7%-27.3%in plant height,decreases of 14.4%-26.8%in ear height,and decreases of 26.3%-71.1%in grain yield.Cluster analysis was conducted on the coefficients of variation of maize grain yield,screening out five maize varieties('Qingqing 700','Kangnongyu 007','Fudan 2','Tongyu 609',and'Zhengda 999')belonging to the stable yield type,which accounted for 27.8%of the total tested maize varieties.Among them,'Qingqing 700','Kangnongyu 007',and'Tongyu 609'had the grain yields higher than 650 kg/667m2 under spring sowing and 370 kg/667m2 under summer sowing and exhibited strong disease resistance,being suitable for spring and summer sowing in Hunan Province.关键词
玉米/播期/产量/品种筛选/湖南Key words
maize/sowing date/yield/variety screening/Hunan Province分类
农业科技引用本文复制引用
匡政成,彭明,曾强,揭红东,黄志坚,龙美平,陈志辉,汤彬..春夏不同播期对湖南省不同玉米品种农艺性状的影响[J].湖南农业科学,2026,(3):9-15,49,8.基金项目
岳麓山实验室首批种业专项(YLS-2025-ZY02037) （YLS-2025-ZY02037）
湖南省农业科技创新资金项目(2024CX126) （2024CX126）
湖南省旱粮产业技术体系(HARS-02) （HARS-02）
