Adaptability of a genotype over diverse environments is usually tested by the degree of its interaction with different environments under which it is planted. A genotype or variety is considered to be more adaptive or stable if it has high mean yield but a low degree of fluctuation in yielding ability when grown over diverse environments. The study was undertaken to evaluate the performance of Lablab purpureus genotypes under diverse environmental conditions. Field trials of forty five (45) accessions collected from Rift Valley, Eastern, Coast and Central regions of Kenya were established in three locations with different agro-ecological environments; Nakuru, Uasin Gishu and Bungoma. Accessi
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