African Journal of
Microbiology Research

  • Abbreviation: Afr. J. Microbiol. Res.
  • Language: English
  • ISSN: 1996-0808
  • DOI: 10.5897/AJMR
  • Start Year: 2007
  • Published Articles: 5215

Prospecting of efficient rhizobia for peanut inoculation in a Planosol under different vegetation covers

Carolina Etienne de Rosalia e Silva Santos
  • Carolina Etienne de Rosalia e Silva Santos
  • Universidade Federal Rural de Pernambuco, Av. Dom Manoel de Medeiros, s/n, CEP 52171-900, Dois Irmãos, Recife, PE, Brazil.
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Vinicius Santos Gomes da Silva*
  • Vinicius Santos Gomes da Silva*
  • Universidade Federal Rural de Pernambuco, Av. Dom Manoel de Medeiros, s/n, CEP 52171-900, Dois Irmãos, Recife, PE, Brazil.
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Ana Dolores Santiago de Freitas
  • Ana Dolores Santiago de Freitas
  • Universidade Federal Rural de Pernambuco, Av. Dom Manoel de Medeiros, s/n, CEP 52171-900, Dois Irmãos, Recife, PE, Brazil.
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Aleksandro Ferreira da Silva
  • Aleksandro Ferreira da Silva
  • Universidade Federal Rural de Pernambuco, Av. Dom Manoel de Medeiros, s/n, CEP 52171-900, Dois Irmãos, Recife, PE, Brazil.
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Rosemberg de Vasconcelos Bezerra
  • Rosemberg de Vasconcelos Bezerra
  • Instituto Federal de Pernambuco, Av. Sebastião Rodrigues da Costa, s/n – CEP 55145-065, São Pedro, Belo Jardim, PE, Brazil.
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Maria do Carmo Catanho Pereira de Lyra
  • Maria do Carmo Catanho Pereira de Lyra
  • Instituto Agronômico de Pernambuco - IPA, Av. Gen. San Martin, 1371 – CEP 50761-000, Bongi, Recife, PE, Brazil.
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Juscelia da Silva Ferreira
  • Juscelia da Silva Ferreira
  • Universidade Federal Rural de Pernambuco, Av. Dom Manoel de Medeiros, s/n, CEP 52171-900, Dois Irmãos, Recife, PE, Brazil.
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  •  Received: 27 October 2016
  •  Accepted: 22 December 2016
  •  Published: 28 January 2017

Abstract

Peanut (Arachis hypogaea L.) is capable of establishing an efficient symbiosis with a wide range of rhizobia, nevertheless, the inoculation of this legume is under used due to lack of information on the bacteria naturally established in soils and the agronomic and economic viability of the practice. The aim of this study was to evaluate the diversity and the symbiotic efficiency of peanut rhizobia from a Planosol under different vegetation covers (native vegetation, sugarcane cultivation and fallow after sugarcane cultivation), located in Zona da Mata, Northeast of Brazil. A total of 177 isolates were obtained from  peanut nodules, most of them having the characteristic of rapid growth and acidification of the Yeast Mannitol Agar (YMA) medium. The isolates obtained from soil samples with native vegetation cover showed higher relative abundance, higher species richness and greater uniformity of morphological groups of rhizobia. Eighteen isolates were evaluated for their ability to nodulate peanuts, of which 13 have been authenticated and submitted to evaluation of symbiotic efficiency in pots with  soil. The isolate 23M  showed the best symbiotic performance in pots with soil. In the field, plants inoculated with the isolate 23M showed better performance than non-inoculated plants, in addition to a grain yield (kg ha-1) similar to that of plants inoculated with recommended bacteria or receiving 200 kg ha-1 N.

Key words: Bacteria of legume nodules, biological nitrogen fixation, diversity, grain legume, sugarcane field reform.

Copyright © 2023 Author(s) retain the copyright of this article.

This article is published under the terms of the Creative Commons Attribution License 4.0

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