Crop Science · 1989 · 41 citations · 0 references
AgricultureAgronomyPlant SciencesCrop ImprovementGermplasm EvaluationPlant GeneticsBiological Nitrogen FixationGermplasm CharacterizationGermplasm CollectionGermplasm ConservationGermplasm ResourcesNitrogen FixationCommon Bean BreedingGermplasm CataloguingNitrogen Fixation In AgroecosystemsNitrogen Fixation In Cropping SystemsNitrogen Fixation Potential