Rhizobial symbiosis on Venezuelan savannas
- Cite this article as:
- Barrios, S. & Gonzalez, V. Plant Soil (1971) 34: 707. doi:10.1007/BF01372825
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An extensive study of the leguminous plants growing on Venezuelan savannas was made. Of 127 species examined, 109 were nodulated, with 73 species in the Papilionoideae. 71 species in 17 genera are new records of nodulation. Most of the non-nodulated species were in the Caesalpinioideae, and non-nodulation was correlated with brown coloured roots.
Some environmental factors involved in the establishment of the legume-Rhizobium association are discussed.
These observations on nodulation represent 13 per cent of the total Leguminosae flora of Venezuela.