摘要
2011-2015年,在内蒙古农业大学牧草试验地,对蒙农根茎冰草新品系（Agropyron michnoi Roshev.）生长发育特性及生产性能进行了试验研究。结果表明：新品系返青早,枯黄晚,青绿期长达229d,干草产量可达8753.1kg/hm^2;生育期为130d,潜在种子产量4815.4kg/hm^2,表现种子产量364.8kg/hm^2。第二年开花之后,行间开始出现根茎苗,逐渐形成密闭草群,地面枝条密度五年平均值为3956.6个/m^2。随生长年限延长,地下根茎呈增长趋势,生长第五年根茎总长度达到87.4m/m^2,根茎重量达到51.6g/m^2。该品系是北方寒冷干旱区人工草地建设的良好材料。
The study on the growth characteristics and productive performance of a new strain of Agropyron michnoi Roshev was conducted in the forage experiment field of Inner Mongolia Agriculture from 2011 to 2015. The results showed that： The green period was 229d. The hay yield reached to 8753.1 kg/hm^2. The Potential seed yield was 4815. 4 kg/hm^2. The Presentation seed yield was 364.8 kg/hm^2. The rhizome length and weight increased in the 5 years. The new strain can be used to cultivating artificial grassland in cold and drought area at northern China.
出处
《草原与草业》
2016年第2期28-32,共5页
Grassland and Prataculture
基金
内蒙古自然科学基金项目
关键词
根茎冰草
生长发育
生产性能
Agropyron michnoi Roshev
growth and development
productive performance
