Journal of
Agricultural Biotechnology and Sustainable Development

  • Abbreviation: J. Agric. Biotech. Sustain. Dev.
  • Language: English
  • ISSN: 2141-2340
  • DOI: 10.5897/JABSD
  • Start Year: 2009
  • Published Articles: 120

Full Length Research Paper

Improvement of tree growth in salt-affected soils under greenhouse conditions using a combination of peanut shells and microbial inoculation

Dioumacor Fall
  • Dioumacor Fall
  • Institut Sénégalais de Recherches Agricoles, Centre National de Recherches Forestières, Route des Pères Maristes, Dakar-Sénégal.
  • Google Scholar
Niokhor Bakhoum
  • Niokhor Bakhoum
  • Laboratoire Commun de Microbiologie, Centre de Recherche de Bel-Air, Dakar-Sénégal.
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Fatoumata Fall
  • Fatoumata Fall
  • Laboratoire Commun de Microbiologie, Centre de Recherche de Bel-Air, Dakar-Sénégal
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Fatou Diouf
  • Fatou Diouf
  • Laboratoire Commun de Microbiologie, Centre de Recherche de Bel-Air, Dakar-Sénégal
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Mathieu Ndigue Faye
  • Mathieu Ndigue Faye
  • Laboratoire Commun de Microbiologie, Centre de Recherche de Bel-Air, Dakar-Sénégal.
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Cheikh Ndiaye
  • Cheikh Ndiaye
  • Laboratoire Commun de Microbiologie, Centre de Recherche de Bel-Air, Dakar-Sénégal
  • Google Scholar
Valérie Hocher
  • Valérie Hocher
  • Laboratoire des Symbioses Tropicales et Méditerranéennes, Institut de Recherche pour le Développement, Campus International de Baillarguet, 34398 Montpellier, France.
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Diégane Diouf
  • Diégane Diouf
  • Laboratoire Commun de Microbiologie, Centre de Recherche de Bel-Air, Dakar-Sénégal
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  •  Received: 01 August 2017
  •  Accepted: 22 September 2017
  •  Published: 31 October 2017

Abstract

This study aimed at selecting an effective microbial inoculum to enhance the performance of Senegalia senegal, Vachellia seyal and Prosopis juliflora and assessing the combination effect of microbial inoculation and peanut shells amendment on their growth under salinity in greenhouse conditions. In the first experiment, seedlings were individually cultivated in plastic bags containing non-sterile sandy soil. Seedlings were inoculated at transplantation with rhizobial and arbuscular mycorrhizal fungi (AMF) strains. Four inoculation treatments were performed: control, inoculation with rhizobia, inoculation with AMF and dual-inoculation with rhizobia and AMF. After one month, seedlings were gradually watered with four saline solutions (0, 86, 171 and 257 mM NaCl) for 4 months. ANOVA showed that inoculation treatments significantly increased seedlings growth particularly in saline conditions and the best performance was obtained with dual inoculation. In the second experiment, seedlings were grown under the same experimental conditions on a mixture of non-sterile sandy soil and 6 tha-1 (169.56 g per bag) of peanut shells var 73-33. Results showed that inoculation, peanut shells and their combination significantly improved seedlings growth. The higher performance was obtained with the combination of microbial inoculation and peanut shells.

 

Key words: Mycorrhiza, rhizobia, organic amendment, Senegalia senegal, Vachellia seyal, Prosopis juliflora, salt tolerance.