Abstract
The impact of phosphorous on plant growth and symbiotic N2 fixation in common bean (P. vulgaris) plants was investigated. Plants inoculated with R. tropici CIAT899 were grown with six P dosage. The P increased plant growth, nodule mass, nitrogenase activity (ARA) and P content, and decreased amino acids and total soluble sugars in the vegetative organs (root, shoot and nodule). The root growth proved less sensitive to P deficiency than did shoot growth, and the leaf area was inhibited at low P. The optimal amount for this symbiosis was 1.5 mM P, this treatment augmented nodule ARA some 20-fold and plant ARA some 70-fold with respect to control.
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CITATION STYLE
Olivera, M., Tejera, N., Iribarne, C., Ocaña, A., & Lluch, C. (2007). Effect of phosphorous on nodulation and nitrogen fixation by Phaseolus vulgaris. In First International Meeting on Microbial Phosphate Solubilization (pp. 157–160). Springer Netherlands. https://doi.org/10.1007/978-1-4020-5765-6_23
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