Pigeon pea [Cajanus cajan (L.) Millspaugh] is among the top ten legumes grown globally, along with common beans, pea, chickpea, broad beans and lentils. More than any other legume adapted to different agroclimatic zones, pigeon pea uniquely combines optimal nutritional profiles, high tolerance to environmental stresses, high biomass productivity and most nutrient and moisture contributions to the soil. It is a tropical grain legume grown mainly in India. Pigeon pea is nodulated by a wide range ...