Symbiotic Effectiveness and Competitiveness of Sinorhizobium fredii on Korean soybeans (Glycin max L.)

우리나라 재배콩(Glycin max L.)서 Sinorhizobium fredii의 공생효과(共生效果)와 근류형성경합력(根瘤形成競合力)

  • Kang, Ui-Gum (National Yeongnam Agricultural Experiment Station) ;
  • Jung, Yeun-Tae (National Yeongnam Agricultural Experiment Station) ;
  • Kang, Hang-Won (National Yeongnam Agricultural Experiment Station) ;
  • Ryu, Jin-Chang (National lnstitute of Agricultural Sciencee & Technology) ;
  • Lee, Sang-Kyu (National lnstitute of Agricultural Sciencee & Technology) ;
  • Ha, Ho-Sung (Dept. of Agricultural Chemistry, Gyeongsang National University)
  • Published : 1997.09.30

Abstract

In order to obtain a basic information related to the utility of Sinorhizobium fredii for field soybean, the effectiveness and competitiveness of nine fast-growing S. fredii strains including TAL 1871 etc. were examined on eleven Korean soybean(Glycin max L.) cultivars. Nine S. fredii strains all modulated soybean cv. Kwangkyo, but did not Danyeobkong. The averaged shoot dry weight by S. fredii strain TAL 1781, TAL 1840, TAL 1899 marked only about 53% as compared to that by Bradyrhizobium japonicum strain YCK 213 and USDA 110. The shoot dry weight by S. fredii strains, of which TAL 1781 was the most effective in that, was increased by coinoculation with B. japonicum YCK 213 rather than with B. japonicum USDA 110. Nodule occupancy by S. fredii ranged from 8.3 to 26.7% in coinoculation with B. japonicum YCK 213, but did from 10.0 to 30.0% with B. japonicum USDA 110. These results indicated that S. fredii strains were inferior effective and competitive to B. japonicum strains.

Keywords

Sinorhizobillm fredii;Soybean(Glycin max L.);Effectiveness;Competitiveness