寒旱农业科学2025，Vol.4Issue(10)：908-912,5.DOI:10.3969/j.issn.2097-2172.2025.10.004
青贮玉米品种陇青3号选育报告
Breeding Report on the Silage Maize Variety Longqing 3
摘要
Abstract
Silage maize is a critical roughage source in modern animal husbandry,and the development of specialized silage corn varieties constitutes a key strategy for advancing the high-quality development of the livestock industry.To tackle challenges such as the lack of specialized silage corn varieties and poor adaptability in Gansu Province,the Corn Breeding Team at the Crop Research Institute of Gansu Academy of Agricultural Sciences,aiming to develop a variety with high biomass yield,superior quality,and strong resistance,has successfully developed the specialized silage corn hybrid'Longqing 3'by employing an enhanced Reid×American hybrid(with tropical germplasm)heterosis utilization model,the team crossed the self-bred inbred line M30-1(female parent)with the introduced line 87-1(male parent).In the 2020 to 2021 Gansu provincial silage maize regional experiments(Group A),Longqing 3 achieved an average equivalent yield of 32 531.1 kg/ha over two years,representing an 8.6%increase over the control variety Yuyu 22.In the 2021 provincial production experiment,its average equivalent yield reached 31 920.0 kg/ha,9.0%higher than Yuyu 22,demonstrating high and stable yield performance.The kernels contained 76 g/kg crude protein,334 g/kg crude starch,345 g/kg neutral detergent fiber,and 182 g/kg acid detergent fiber.The variety showed high resistance to Fusarium graminearum stalk rot,susceptibility to northern leaf blight and head smut,good lodging resistance,and 70.2%stay-green rate.It is suitable for cultivation in the Hexi Corridor,central,and eastern regions of Gansu Province.关键词
青贮玉米/新品种选育/陇青3号/高抗性/栽培技术Key words
Silage maize/Breeding of new variety/Longqing 3/High resistance/Cultivation technique分类
农业科学引用本文复制引用
周玉乾,李永生,何海军,杨彦忠,王晓娟,连晓荣,周文期,董小云,马增科..青贮玉米品种陇青3号选育报告[J].寒旱农业科学,2025,4(10):908-912,5.基金项目
国家自然科学基金(32360511、32460510). （32360511、32460510）
