吉林省不同水稻品种氮素效率研究  

Study on Nitrogen Uptake Efficiency of Different Rice Genotypes in Jilin Province

作　　者：杨靖民[1] 王丽群[1] 刘世杰[1] 周米平[1] 

机构地区：[1]吉林农业大学资源与环境学院,长春130118

出　　处：《吉林农业大学学报》2005年第3期306-309,314,共5页Journal of Jilin Agricultural University

基　　金：吉林省科学技术厅资助项目(吉科合字240000563)

摘　　要：采用盆栽试验对吉林省8个水稻品种的氮素吸收效率、利用效率、转移效率、养分相对效率、氮响应度等进行了分析和评价。结果表明:不同品种的产量、氮素利用效率和氮素转移效率有显著差异,未施氮与施氮处理的平均产量、孕穗期利用效率、氮素转移效率分别为6 35g 株和15 82g 株、57 08g g和42 21g g、17 05g g和12 03g g。依据未施氮与施氮处理的氮素效率差异,将8个品种划分为氮高效率不耐肥、氮高效率耐肥、氮低效率不耐肥、氮低效率耐肥4种类型。"吉丰10号"未施氮和施氮的产量分别为6 50g 株和18 77g 株;氮素转移效率分别为20 62g g和14 28g g;氮响应度为24 6g g。认为"吉丰10号"为氮高效耐肥型高产品种。<Abstrcat> A pot experiment was carried out to analyze and evaluate nitrogen uptake efficiency, physiological nitrogen use efficiency, relative efficiency of nutrition, nitrogen responsiveness and translocation efficiency of eight rice genotypes in Jilin province. The results showed that yield, nitrogen use efficiency and nitrogen translocation efficiency among different rice genotypes were significantly different under zero-N and fertilizer-N condition. Average yield, nitrogen use efficiency at panicle forming stage, and nitrogen translocation efficiency were 6.35 g/plant, 57.08　g/g and 17.05 g/g under zero-N treatment, and (15.82 g/plant), 42.21 g/g and 12.03 g/g under fertilizer-N treatment respectively. Eight rice varieties can be grouped into four types according to their abilities to nitrogen use efficiency between zero-N and fertilizer-N treatments: Higher N use efficiency with lower fertilizer -N response; Higher N use efficiency with higher fertilizer-N response; Lower N use efficiency with lower fertilizer-N response and Lower N use efficiency with higher fertilizer-N response. Under zero-N and fertilizer-N condition, Jifeng-10 showed the yield of 6.50 g and 18.77 g, nitrogen translocation efficiency of 20.62 g/g and 14.28 g/g and nitrogen responsiveness of 24.6 g/g. Jifeng-10 was selected as a higher-yield genotype in this experiment.

关 键 词：水稻 氮素效率 品种 吉林省 

分 类 号：S511.062[农业科学—作物学]