Acidity tolerance of rhizobia from Canavalia ensiformis nodules

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Ionel Hernández-Forte
María C. Nápoles-García
Pedro R. Rosales-Genqui
Juan F. Ramírez-Pedroso
Sheyla Ponte-Betancourt

Abstract

The biofertilization of legumes with tolerant acidity rhizobia would allow a better establishment of these plants in acid soils.The objective of this study was to determine the acidity tolerance of rhizobia isolated from Canavalia ensiformis nodules. Five rhizobia isolates were used and their growth capacity at different acidity levels was performed. A second assay was performed where the pH influence on the viable cells number was determined. The statistical software Statgraphics version 5.0 was used to process the second test data. A simple classification variance analysis was performed and the means were compared for the Tukey test.All microorganisms grew at pH 3,5; 4,0; 4,5; 5,0 and 5,5. The isolates Can4 and Can6 had a higher viable cells number at pH 4,5 than pH 6,8. Both isolates are promising to improve the Canavalia ensiformis establishment on cuban acid soils.

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How to Cite
Hernández-Forte, I., Nápoles-García, M. C., Rosales-Genqui, P. R., Ramírez-Pedroso, J. F., & Ponte-Betancourt, S. (2017). Acidity tolerance of rhizobia from Canavalia ensiformis nodules. Cultivos Tropicales, 38(3), 55–57. Retrieved from https://ediciones.inca.edu.cu/index.php/ediciones/article/view/7
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Original Article

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