Effects of different rhizobium strains on nitrogen fixation of ureide and 15N abundance methods

被引：0
|
作者：
Dechjiraratthanasiri, Chatprawee [1 ,3 ]
Santasup, Choochad [1 ]
Werth, Martin [2 ]
Inthasan, Jiraporn [3 ]
机构：
[1] Chiang Mai Univ, Fac Agr, Dept Plant & Soil Sci, Chiang Mai 50000, Thailand
[2] Univ Ulm, Inst Systemat Bot & Ecol, D-89069 Ulm, Germany
[3] Maejo Univ, Fac Agr Prod, Div Soil Resources & Environm, Chiang Mai 50290, Thailand
来源：
MAEJO INTERNATIONAL JOURNAL OF SCIENCE AND TECHNOLOGY | 2021年 / 15卷 / 02期
关键词：
mungbean; nitrogen fixation; rhizobia; ureide method; N-15 abundance method; INOCULATION; NITRATE; GROWTH;
D O I：
暂无
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
The effects of different rhizobium strains on nitrogen fixation of mungbean were assessed by ureide and N-15 abundance methods. Three genotypes of mungbean (MJU3, KPS2 and CN72) were used as the main plot factor and three rhizobium strains, viz. Bradyrhizobium sp. (SB1), Bradyrhizobium elkanii (SB2) and Rhizobium sp. (SB3) plus an uninoculated control (without rhizobia) , as the subplot factor. Nodule fresh and dry weights in all genotypes increased significantly upon inoculation with SB2 strain at the R7 stage. Inoculation with SB2 also resulted in all genotypes being highest in total nitrogen, whereas inoculation with SB3 caused the greatest gain in shoot fresh and dry weights at R3.5 and R7stages respectively. The highest percentage of nitrogen derived from the atmosphere both from the ureide and N-15 abundance techniques was found in MJU3 genotype combined with SB2 inoculation at R3.5 and R7 stages.
引用
收藏
页码：137 / 146
页数：10
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