Plant introduction is the oldest and simplest method of crop improvement, as well as an effective means to overcome the narrow genetic diversity observed in certain parts of the world. Genetic base of pulse varieties is narrow and needs immediate corrective measures by involving unadapted germplasm accessions, exotics and wild relatives in breeding programme. Over a period of time, several promising exotics of pulses were introduced in India from different countries. A total of 8 exotics of chickpea, two of pigeonpea, eleven of mungbean, one of lentil, five of fieldpea and four of Rajmash have contributed in the development of 52 cultivars of different pulse crops released in India. Rate of infusion of new exotics in pulse breeding programme has been slow. Several exotic accessions with useful traits are yet to be exploited in breeding programmes. Access to unique and potential valuable germplasm is key to sustained pulse improvement programme. The present paper describes the analysis of genetic base of the released cultivars, status of utilization of exotics, target traits for introduction, availability of useful exotic germplasm and possible approaches and strategies for their utilization in pulse improvement programme.
Pulses, Introduction, Varietal development, Genetic base, Released cultivars
