摘要
为了给三峡库区“粮改饲”筛选出高产质优、适应性强的青贮玉米(Zea mays)品种,对10个青贮玉米品种的生产性能和饲用品质进行了综合评价分析。结果表明,10个青贮玉米品种中,干草产量最高的为“渝青玉3号”,达30 636.16 kg·hm^–2;株高表现最好的为“重艮166”和“渝青玉3号”,分别为311.93、310.67 cm;穗位高变化范围为99.04~123.05 cm,最大值为“大爱111”;叶长和叶宽表现最好的分别为“大爱111”和“渝青玉3号”;茎粗表现最好的为“渝青玉3号”和“曲辰九号”;粗蛋白含量最高的为“青贮玉米318”,达10.4%;中、酸性洗涤纤维最低的皆为“青贮玉米318”。应用灰色关联度分析表明,等权关联度和加权关联度排名前3位的均为“渝青玉3号”、“青贮玉米318”和“大爱111”,该3个品种适宜在三峡库区推广种植。
The production performance and nutritional value of 10 silage corn varieties were investigated to screen the number of high yield,good quality,and adaptable silage corn varieties suitable for cultivation in the Three Gorges Reservoir area.The results showed that the highest hay yield was from Yuqingyu 3 at 30 636.16 kg·ha^–1.The highest plant height was for Chonggen 166 and Yuqingyu No.3 at 311.93 cm and 310.67 cm,respectively.Spike height ranged from 99.04 cm to 123.05 cm,with the maximum value for Da’ai 111 and the lowest dry-fresh ratio for Quchen 9.The best performance for leaf length and width were for Da’ai 111 and Yuqingyu 3,respectively.The best performance for stem diameter was for Yuqingyu 3 and Quchen 9.The highest content of crude protein was silage corn 318,being up to 10.4%,and the lowest content of medium acid detergent fiber also occurred for silage maize 318.Grey correlation analysis showed that the top three equal weight correlation degrees and weighted correlation degrees were Yuqingyu 3,silage maize 318,and Da’ai 111.These varieties are suitable for planting in the Three Gorges Reservoir area.
作者
张健
黄德均
唐露
高立芳
ZHANG Jian;HUANG Dejun;TANG Lu;GAO Lifang(Chongqing Academy of Animal Science,Rongchang 402460,Chongqing,China)
出处
《草业科学》
CAS
CSCD
2019年第8期2118-2126,共9页
Pratacultural Science
基金
国家重点研发计划课题“粮草耦合改土增草增效关键技术研究与示范”(2017YFD0502101)
三峡库区粮草轮作模式及配套技术研究与示范（19517）
重庆市科委条件平台项目“重庆市草业工程技术研究中心(cstc2017yfpt_gcjsyjzx0003)
关键词
青贮玉米
生物产量
农艺性状
饲用品质
灰色关联度分析
silage corn
biological yield
agronomic traits
feeding quality
grey correlation analysis
