Competition Between the Common Bean and Weed in Function of Cultivar Growth Type

This work aimed to evaluate the competitive capacity of common bean cultivars of different growth types under the presence and absence of weed species communities during two crop seasons( rainy 2006/2007 and dry 2007). The experiment was arranged in a randomized block design, in a factorial scheme with four replications. The treatments consisted of three bean cultivars with different types of growth (Perola'': type III/II, Apore'': type III and BRS Radiante'': type I) in combination with two types of management of weed species: cultivated with and without weed. It was concluded that in the cerrado'' during the rainy season, the problems of the common bean with the weed species aggravated, especially in relation to Brachiaria ssp., Cenchrus echinatus, Digitaria horizontalis and Eleusine indica. The common bean genotypes with semi-erect (Perola'') and prostrated (Apore') growth habits were more competitive against the weed plant community.