Abstract
Aims: The study was conducted to determine the effectiveness of pyramided genes in improving angular leaf spot (ALS) resistance in susceptible common bean cultivars. Study Design : The experiment was set in randomized block design with three replications . Place and Duration of Study: The experiment was conducted at Internatio nal Centre for Tropical Agriculture ( CIAT ) at Kawanda, Uganda in 2010 - 2014. Methodology: Crosses among three Pseudocercospora griseola resistant lines of common bean ( Phaseolus vulgaris) were developed. The crosses involved five inbred lines, AND277, Mexi co 54, G5686 and two susceptible cultivars, K132 and Kanyebwa. The resistant lines were crossed in cascading pyramiding scheme to develop triple crosses (TC). The TC F 1 and each of the resistant parents were crossed with each of the two susceptible cultiva rs to generate four parent crosses
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