甘肃陇中地区中熟早熟青贮玉米品种生产性能研究  

Screening of middle and early maturing silage maize varieties in central Gansu

作　　者：刘翠 杜文华[1] 田新会[1] LIU Cui;DU Wen-hua;TIAN Xin-hui(College of Grassland Science,Gansu Agricultural University,Key Laboratory for Grassland Ecosystem,Ministry of Education,Grassland Engineering Laboratory of Gansu Province,Sino-U.S.Centers for Grazing Land EcosystemSustainability,Lanzhou 730070,China)

机构地区：[1]甘肃农业大学草业学院,草业生态系统教育部重点实验室,甘肃省草业工程实验室,中-美草地畜牧业可持续发展研究中心,甘肃兰州730070

出　　处：《草原与草坪》2024年第3期195-202,共8页Grassland and Turf

基　　金：国家自然科学基金项目(31760702);甘肃省重点研发项目(20YF8NA129);西藏重大专项(XZ202101ZD003N)。

摘　　要：【目的】筛选生产性能高、适宜于作为秋播小黑麦复种青贮玉米作物的品种。【方法】研究9个中熟早熟青贮玉米品种(华美2号,利合228,利单656,大京九26,京科青贮932,武科青贮107,西蒙青贮707,豫青贮23,蒙青贮1812)在甘肃中部地区的农艺性状和草产量。【结果】豫青贮23的株高、穗位高和叶片数均表现较好,生长发育较快,2020和2021年的鲜草产量均最高,分别为140.95、79.13 t/hm^(2),达到了青贮玉米的最佳收获期;西蒙青贮707虽叶片数量较少、株高低、叶片较短较宽,但穗上叶数量较多、茎秆较粗,2020年鲜草产量较高,为115.4 t/hm^(2),2021年由于干旱,鲜草产量仅为56.6 t/hm^(2),两年均达到了青贮玉米的最佳收获期。【结论】综合分析参试品种的草产量和生育时期,豫青贮23和西蒙青贮707适宜在甘肃中部地区种植,可作为秋播小黑麦的复种作物。【Objective】In order to identify silafe maize varieties with high production performance.【Method】The agronomic characteristics and grass yield of nine mid-early maturing silage maize varieties(Huamei 2,Lihe 228,Litan 656,Dajing Jiu26,Jingke Silage 932,Wuke silage 107,Simon silage 707,Yu Silage 23,Meng Silage 1812)in central Gansu were studied.【Result】Yu silage showed rapid growth and development with good plant height,ear height and leaf number.In 2020 and 2021,fresh grass yield was the highest 140.95 t/hm^(2) and 79.13 t/hm^(2),respec-tively,and reached the best harvest time of silage corn.Although Simon Silage 707 had fewer leaves,shorter leaves and wider leaves,it had more leaves on ear and thicker stalks than the rest of the varieties.The fresh grass yields was 115.4 t/hm^(2) in 2020,but the fresh grass yield was only 56.6 t/hm^(2) in 2021 due to drought.Simon Silage 707 met the best harvest time of silage corn in both years.【Conclusion】The results showed that Yu Silage 23 and Simon silage 707 were suitable for planting in central Gansu province and could be used as double crops of autumn sowing trials.

关 键 词：青贮玉米 复种 农艺性状 鲜草产量 

分 类 号：S816.53[农业科学—饲料科学]