棉花学报2012，Vol.24Issue(3)：253-258,6.
长江流域棉花主推品种氮素吸收与利用效率比较与分类
Study on Nitrogen Uptake and Use Efficiency in Different Cotton Cultivars in the Yangtze River Region
摘要
Abstract
Eight cotton cultivars, applied in Yangtse River basins, were grown and used to investigate nitrogen uplake and use efficiency difference among cotton cultivars. The results showed that there were large differences in nitrogen recovery efficiency (RE) for eight cotton cultivars, which varied from 29.0%～48.2%. And the cultivars of high RE had appropriate nitrogen accumulation in leaf and stem, higher nitrogen accumulation in bolls and total nitrogen accumulation. There were also large differences in nitrogen use efficiency for seed cotton production (NUEsp) among the eight cultivars. The NUEsp for Simian 3 and Kemian 6 were higher, 20.67 kg·kg-1 and 20.35 kg·kg-1 respectively. Based on a cluster analysis of RE, the cultivars were divided into three groups: a high-efficiency RE type, a middle-efficiency RE type, and a low-efficiency RE type The cluster analysis of NUEsp showed that the cultivars were divided into two groups: a high-efficiency NUEsp type, and a low-efficiency NUEsp type. Further analysis of RE and NUEsp data indicated that the cultivars were divided into four types: The first group was high-efficiency type both in RE and NUEsp, the second type was low-efficiency type both in RE and NUEsp, the third type was high-efficiency in NUEsp and low-efficiency in RE, and the forth type was high-efficiency in RE and low-efficiency in NUEsp.关键词
棉花/氮素/吸收效率/利用效率/子棉产量Key words
cotton/ nitrogen/ uptake efficiency/ use efficiency/ seed cotton production分类
农业科技引用本文复制引用
张祥,刘晓飞,王桂霞,吕春花,栾娜,陈源,陈德华..长江流域棉花主推品种氮素吸收与利用效率比较与分类[J].棉花学报,2012,24(3):253-258,6.基金项目
国家自然科学基金(30971727) （30971727）
江苏省高校优势学科建设工程资助项目 （）
扬州大学新世纪学术带头人基金 （）
江苏省"青蓝工程"学术带头人培养基金 （）
江苏省自然科学基金(BK2009324) （BK2009324）
扬州大学科技创新培育基金资助(2010CXJ036,2011CXJ048) （2010CXJ036,2011CXJ048）
江苏省农业三项工程 （）
