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Efficiency of phosphorus utilization in ten bean (Phaseolus vulgaris L.) genotypes

Efficiency of phosphorus utilization in ten bean (Phaseolus vulgaris L.) genotypes

Agronomia Mesoamericana 7(1): 41-46

In laboratory trials, 5-d-old seedlings of 10 P. vulgaris genotypes were grown in plastic boxes containing strongly aerated nutrient solution and given 0, 62.5, 125, 187.5 or 1875 mM P/plant with 2 mM N, as KNO3, at weekly intervals. At cutting, after 35 d, foliar dry weight P content and P use efficiency were determined. Optimum P requirement ranged from 62.5 to 187.5 mM/plant per week with Pot 51 and Carioca showing the lowest and highest P requirement, respectively, for optimum yield.

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Accession: 002826486

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