中国麻业科学2017，Vol.39Issue(1)：30-36,7.
不同苎麻基因型氮素累积与利用效率差异分析
Analysis of Differences in Nitrogen Accumulation and Utilization Efficiency of Different Feed Ramie genotypes
摘要
Abstract
Variety improvement was one of the most effective methods of enhancing nitrogen utilization efficiency (NUE) of crops.Excessive nitrogen was applied to ramie for higher yield and resulted in waste at the present.However,there was no study had reported genotypic difference in nitrogen accumulation and utilization.In this thesis,hydroponic experiments were conducted with feed ramie for evaluating genotypic difference among 30 varieties.Nitrogen accumulation and utilization characteristics were analyzed to provide evidence for ramie NUE improvement.Results showed that nitrogen accumulation,distribution and component were significantly different among genotypes.Higher nitrogen was accumulated in shoots which consisted of more NH4+ but less NO3-.Nitrate accumulation in shoots was the most sensitive index for examining NUE of feed ramie among 10 traits including ammonium accumulation in roots,etc.Remarkable differences and abundant variations of NUE among genotypes were obeserved,which showed great potential for ramie genetic improvement.关键词
苎麻/苗期/氮素利用效率/氮素累积Key words
ramie/seedling stage/nitrogen utilization efficiency/nitrogen accumulation分类
农业科技引用本文复制引用
陈继康,谭龙涛,喻春明,陈平,朱爱国,熊和平..不同苎麻基因型氮素累积与利用效率差异分析[J].中国麻业科学,2017,39(1):30-36,7.基金项目
湖南省科技计划重点研发计划(2016NK2205) （2016NK2205）
国家麻类产业技术体系(CARS-19) （CARS-19）
