Nitrogen fixation and plant growth of common bean (Phaseolus vulgaris L.) at different levels of phosphorus availability

The efficacy of the alumina system for differentiating between bean (Phaseolus vulgaris L.) genotypes for growth at different levels of phosphorus availability was determinated. In addition to response to P levels, comparisons were made between plants receiving N either from fertilizer or nitrogen f...

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Bibliographic Details
Published in:Plant and soil 1987-03, Vol.104 (1), p.79-84
Main Authors: PEREIRA, P. A. A., BLISS, F. A.
Format: Article
Language:English
Subjects:
Adaptation to environment and cultivation conditions
Agronomy. Soil science and plant productions
Biological and medical sciences
Dry matter accumulation
Economic plant physiology
Fundamental and applied biological sciences. Psychology
Genetics and breeding of economic plants
Nitrogen
Nitrogen fixation
Nodules
Phosphorus
Plant growth
Plant roots
Plants
Rhizobium leguminosarum
Symbiosis (nodules, symbiotic nitrogen fixation, mycorrhiza...)
Varietal selection. Specialized plant breeding, plant breeding aims
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Summary:The efficacy of the alumina system for differentiating between bean (Phaseolus vulgaris L.) genotypes for growth at different levels of phosphorus availability was determinated. In addition to response to P levels, comparisons were made between plants receiving N either from fertilizer or nitrogen fixation. When the cv. Carioca was provided with either 100 ppm of N or inoculated with Rhizobium leguminosarum biovar phaseoli, differences in shoot dry weight and nodule number were related to P level. There was a greater proportion of green, ineffective vs. red, active nodules at the low P concentration than at the higher P concentration. In a second experiment, two cvs., Puebla 152 and Carioca and the breeding line UW 24-21, either were inoculated with rhizobia or provided with 150 ppm of N. Each genotype-nitrogen combination was grown at 8 levels of P. There was a positive effect of P level on shoot dry weight, nodule number and nodule mass. Root mass was affected less than nodule or shoot mass by the P level of the growth medium. Nodule mass, but not P concentration in the nodules, was affected by P level, whereas in the other plant tissues, P concentrations were lower at lower P levels in the media.
ISSN:0032-079X
1573-5036
DOI:10.1007/bf02370628