大豆科学2012，Vol.31Issue(1)：76-80,5.
不同蛋白质含量大豆品种氮素积累、分配和运转规律研究
Nitrogen Accumulation, Distribution and Translocation of Soybean Cultivars with Different Protein Content
摘要
Abstract
In order to investigate nitrogen dynamic change in high-protein soybean cultivar, the dynamic change of nitrogen ac cumulation, distribution and translocation and its effects on protein content in seeds were analyzed. Two high-protein and one common soybean varieties with similar yield were chosen as test materials and the nitrogen content in different organ after branching were determined and calculated. The results showed that the nitrogen content in 3 cultivars was similar before pod ding. After podding, the nitrogen content of all vegetative organs (leaf, stem and petiole ) of high-protein cultivars, except that of petiole in the 7th week,were higher than those of normal cultivar. Therefore,the higher nitrogen content and maintaining for a long time in the vegetative organs were beneficial to nitrogen accumulation of seeds. On the contrary, nitrogen content in pod shell (with the exception of mature stage) of high-protein soybean was lower, which suggested most nitrogen in vegetative organs were translocated to seed in high-protein soybeans. During seed formation, translocated N contributed more to seed protein con tent for high-protein soybean. At maturity,the high-protein cultivars still could uptake more nitrogen than normal cultivar and the nitrogen content in all organs were higher than those of normal cultivar, which is favorable to the comprehensive utilization on both seeds and straw of high-protein soybean cultivars.关键词
高蛋白/大豆/氮素/积累与分配Key words
High protein/ Soybean/ Nitrogen Accumulation and distribution分类
农业科技引用本文复制引用
胡润芳,张广庆,滕振勇,林国强..不同蛋白质含量大豆品种氮素积累、分配和运转规律研究[J].大豆科学,2012,31(1):76-80,5.基金项目
农业部公益性行业(农业)科研专项(200903002) （农业）
福建省农业科技重大专项项目[2008NZ0002-1(3)] （3）
福建省科技厅公益类科研院所专项(2011R1028-3) （2011R1028-3）
福建省财政专项资助项目(STIF-Y04). （STIF-Y04）
