寒旱农业科学2026，Vol.5Issue(9)：828-833,6.DOI:10.3969/j.issn.2097-2172.2026.09.007
陇东旱塬区高水效抗病高产玉米品种筛选与综合评价
Screening and Comprehensive Evaluation of Maize Varieties with High Water-use Efficiency,Disease Resistance,and High Yield in the Dryland Plateau Area of Longdong
摘要
Abstract
To screen maize varieties suitable for cultivation in the dryland plateau area of Longdong and provide a basis for va-rietal replacement and high-yield cultivation of maize in the region,a comparative introduction experiment involving 12 new maize va-rieties was conducted in Jingchuan County.Their agronomic traits,grain yield,and water-use efficiency were comprehensively evalua-ted,and correlation analysis was performed.Results showed that the growth duration of the tested maize varieties ranged from 120 to 133 d,and all varieties reached normal maturity under local conditions.Among them,Heheng 5266 produced the highest equivalent yield of 14 139.21 kg/ha,followed by Jiuyu W03,Xianyu 335,and Dunyu 821,with yields of 13 305.64,13 112.68,and 12 973.85 kg/ha,respectively.Heheng 5266 also exhibited the highest water-use efficiency,reaching 33.18 kg/(ha·mm),while Xianyu 335,Dunyu 821 and Jiuyu W03 also showed relatively high water-use efficiencies of 30.39,29.40 and 29.34 kg/(ha·mm),respectively.Correlation analysis showed that grain yield was highly significantly and positively correlated with water-use efficiency and 100-grain weight,and significantly and positively correlated with the number of grains per ear.Therefore,in maize production,foliar application of potassium fertilizer may be used to promote ear development and thereby contribute to high yield.Comprehensive evaluation of the agronomic traits,grain yield,and water-use efficiency of the tested varieties indicated that Heheng 5266,Jiuyu W03,Xianyu 335,and Dunyu 821 exhibited strong adaptability,stable yield performance,and efficient water use in the dryland plateau of Longdong and are there-fore suitable for wider cultivation in this region.关键词
玉米/抗病/品种/农艺性状/产量Key words
Maize/Disease resistance/Variety/Agronomic trait/Yield分类
农业科技引用本文复制引用
张铠鹏,王永,赵雪蕊,续创业,李尚中,赵刚,党翼,王磊,赵海燕,王腾飞,魏江文..陇东旱塬区高水效抗病高产玉米品种筛选与综合评价[J].寒旱农业科学,2026,5(9):828-833,6.基金项目
国家重点研发计划(2024YFD2300200) （2024YFD2300200）
中央引导地方科技发展资金项目子课题(24ZYQA02202) （24ZYQA02202）
平凉市重点研发计划-农业类(PL-STK-2024A-036) （PL-STK-2024A-036）
甘肃省重点研发计划(24YFNA014) （24YFNA014）
甘肃省科技专员专项(25CXGL003) （25CXGL003）
平凉市重点研发计划-农业类(PL-STK-2023A-043) （PL-STK-2023A-043）
甘肃省陇原青年英才(省委人才小组发[2024]11号) （省委人才小组发[2024]11号）
甘肃省企业研发能力提升专项(24CXJL001) （24CXJL001）
平凉市科技计划项目(PL-STK-2024-027) （PL-STK-2024-027）
甘肃省研产融合科技攻关赋能计划项目(25FNNA003). （25FNNA003）
