Enhancing Yield and Biological Nitrogen Fixation of Common Beans

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2012-01-01
Authors
Westgate, Mark
Sebuwufu, Gerald
Kabahuma, Mercy
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Abstract

Two studies were conducted at the ISU Horticulture Station to evaluate potential limitations on yield and atmospheric nitrogen fixation by common bean (Phaseolus vulgaris L.). This legume is a food staple for small landholder farm families worldwide. But it has a limited capacity for nitrogen fixation and often yields only a fraction of its genetic potential. In these studies, we examined the dependence of pod filling on current assimilate supply, as well as the potential to improve nitrogen fixation using an inoculant shown to enhance biological nitrogen fixation under stressful conditions.

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RFR A1131, Agronomy
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