中国稻米Issue(4)：99-102,4.DOI:10.3969/j.issn.1006-8082.2015.04.022
水稻氮高效品种的初步筛选
Preliminary Screening of High Nitrogen Utilization Efficiency Rice
摘要
Abstract
Ten super rice varieties and ten super-high-yield rice varieties were pot-cultured under two levels of N supply (10 kg/667 m2 and 15 kg/667 m2) to determine their dynamic of tiller, the leaf area per plant, the leaf SPAD values, dry matter weight, grain yield, yield components and some other agronomic traits. Nitrogen efficient rice varieties and N inefficient rice varieties were prelimi-nary selected according to the grain yield, and then analyzed the dynamic of tillers and dry matter accumulation. The results showed that the grain yield under high N levels were significantly higher than low N level. Five nitrogen efficient rice varieties and eight N in-efficient rice varieties were selected. The dry matter weight of N efficient rice varieties were significantly higher than N inefficient rice varieties, the difference of tiller number was not significant during the whole growth period.关键词
水稻/氮高效/品种/筛选Key words
rice/nitrogen efficiency/varieties/selection分类
农业科技引用本文复制引用
余友玲,吴文革,陈刚,周永进,许有尊,习敏,杨成林..水稻氮高效品种的初步筛选[J].中国稻米,2015,(4):99-102,4.基金项目
国家科技支撑计划（2011BAD16B06-3，2013BAD07B08，2012BAD04B09-2）；公益性行业（农业）专项 （）
