Selection of rhizobium strains (Shinorhizobium spp.) for Medicago arabica (L.) Hudson, fodder and medicinal plant

Authors

  • Aleksander Westphal Muniz Epagri/Estação Experimental de Lages
  • Fernanda Grimaldi Universidade do Estado de Santa Catarina (Udesc)
  • Edemar Brose Epagri/Estação Experimental de Lages (aposentado)
  • Murilo Dalla Costa Epagri/Estação Experimental de Lages
  • Carmem Lídia Wolff Udesc

Keywords:

spotted medick, diazotrophic bacteria, nodulation, plant growth, biological nitrogen fixation

Abstract

The objective of this study was to select efficient strains of rhizobium in growth promoting and nitrogen fixation in spotted medick (Medicago arabica), forage legume with medicinal potential due to high content of secondary metabolites. Twenty-three rhizobium strains isolated from plant nodules collected in Urupema, SC, Brazil, were evaluated.
Spotted medick seedlings grown in hydroponics in a greenhouse were inoculated with bacterial suspensions of these strains. After 90 days of growth, shoot dry weight, nodule number and nodule dry mass of the plants were assessed. These three variables were higher in strains EEL 904B, EEL 1004, EEL 904, EEL 2404 and EEL 1604. It is concluded that
these strains are most effective in growth promoting of spotted clover in greenhouse and should be tested in field experiments to prove effectiveness in nitrogen fixation and in growth promoting of spotted medick.

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Published

2020-04-28

How to Cite

Muniz, A. W., Grimaldi, F., Brose, E., Dalla Costa, M., & Wolff, C. L. (2020). Selection of rhizobium strains (Shinorhizobium spp.) for Medicago arabica (L.) Hudson, fodder and medicinal plant. Agropecuária Catarinense Journal, 23(3), 85–87. Retrieved from https://publicacoes.epagri.sc.gov.br/rac/article/view/749

Issue

Vol. 23 No. 3 (2010)

Section

Scientific note

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