中国草地学报2025，Vol.47Issue(4)：75-85,11.DOI:10.16742/j.zgcdxb.20240357
陇中旱作区夏播青贮玉米品种的农艺性状及产量比较
Comparison of Agronomic Traits and Yield of Summer Silage Maize Varieties in Dry Farming Region of Central Gansu
摘要
Abstract
The objective of this study was to identify silage maize varieties suitable for autumn sowing on triticale stubble in the dry farming region of central Gansu.The expection was to enhance local forage yield and land utilization efficiency,increase farmers' economic returns,and promote sustainable economic development.A field experiment was conducted in Lintao county over two consecutive years(2020 and 2021)to evaluate the agronomic traits and yield of silage maize sown after mowing triticale at the flowering stage.Nine silage maize varieties were tested:'Huamei 2'(G1),'Yu Silage 23'(G2),'Dajingjiu 26'(G3),'Wuke Silage 107'(G4),'Lihe 228'(G5),'Lidan 656'(G6),'Ximeng Silage 707'(G7),'Jingke Silage 932'(G8),and 'Meng Silage 1812'(G9).The results showed as follows:(1)The dry matter con-tent of G1,G2,G6,G8,and G9 remained close to 30%over both years,meeting the optimal dry matter content requirements for silage maize.(2)In 2020,the average plant height,fresh forage yield,and hay yield of silage maize varieties were significantly higher than in 2021,whereas the average stem diameter and leaf length were significantly lower than in 2021(P<0.05).(3)The two-year average performance of agronomic traits and yield showed that G9 had the greatest average plant height and ear height,G3 had the largest average stem diameter,leaf length,and leaf number,G8 had the greatest average leaf width and the highest number of leaves above the ear,while G2 had the highest average fresh forage yield and hay yield among all tested varieties.(4)The combined effects of planting year and genetic characteristics signifi-cantly influenced yield,with fresh forage and hay yields in 2020 exceeding those in 2021(P<0.05).The fresh forage yield of G2 in 2020(109.36 t/hm2)and 2021(63.79 t/hm2)was the highest among all tested varieties,while the hay yield of G8 was second only to G2 and G5 in respective years.A comprehensive analysis of dry matter content,agronomic traits,and yield performance suggests that 'Yu Silage 23' and'Jingke Silage 932' are the most suitable varieties for use in triticale-based multiple cropping systems in cen-tral Gansu.关键词
旱作区/复种/青贮玉米/农艺性状/产量Key words
Dry farming region/Multiple cropping/Silage corn/Agronomic traits/Yield分类
农业科技引用本文复制引用
张银霞,宋谦,刘翠,郭蕊,赵方媛,杜文华..陇中旱作区夏播青贮玉米品种的农艺性状及产量比较[J].中国草地学报,2025,47(4):75-85,11.基金项目
农业生物育种重大专项(2023ZD0402605-02) （2023ZD0402605-02）
国家自然科学基金项目(32260339) （32260339）
甘肃省高等学校产业支撑计划项目(2022CYZC-49) （2022CYZC-49）
甘肃省重大专项(21ZD4NA012) （21ZD4NA012）
西藏重大专项(XZ202101ZD003N) （XZ202101ZD003N）
