Resource Details

Occurrence of nodulation in unexplored leguminous trees native to the West African tropical rainforest and inoculation response of native species useful in reforestation

Literature: Journal Articles

Diabate, M., Munive, A., de Faria, S.M., Ba, A., Dreyfus, B. & Galiana, A. 2005, "Occurrence of nodulation in unexplored leguminous trees native to the West African tropical rainforest and inoculation response of native species useful in reforestation", New Phytologist, vol. 166, pp. 231-239.

Contact Info

Antoine Galiana, galiana@cirad.fr

Affiliations

  • Institut de Recherche Agronomique de Guinée, Division des Cultures Pérennes, Programme Recherche Forestière, Conakry, République de Guinée

Link(s)

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Species Info

  • Albizia altissima
  • Albizia ferruginea
  • Albizia zygia
  • Erythrophleum guineensis
  • Erythrophleum ivorensis
  • lbizia adianthifolia
  • Millettia rhodantha
  • Millettia zechiana

Description

  • This study investigates the occurrence of nodulation in two parts: (i) occurrence of nodulation was determined in 156 mature leguminous species growing in 6 natural forest areas in south-eastern Guinea and (ii) an in situ experiment of rhizobia inoculation was performed on 8 selected tree species.
  • The field observations were carried without any sampling protocol, and roots of targeted species were systematically observed for nodulation when encountered. In situ nodules were collected from mature A. adianthifolia, A. ferruginea, A. zygia, E. guineensis, M. rhodantha and M. zechiana growing in the natural forests and inoculated, nursed and transplanted to the field close to the nursery.
  • 4 months of nursery treatment followed by 11 months after transplantation of plants to the field, the results showed a highly significant and positive effect of inoculation with Bradyrhizobium sp. strains on both stem height and diameter growth of the eight tree species tested. Height differences were enhanced in the following species A. zygia, A. ferruginea, E. guineensis, and M. rhodantha. But there was an important decline of the inoculation effect in A. adianthifolia although it remained positive.
  • The authors conclude that there is the need to identify the nodulation status of unexplored local trees before inoculating them with rhizobia in the context of plantation projects or reforestation programs in degraded humid tropical forests.

Geographical Region

  • West Africa
  • Country

  • Guinea
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