1. Abrams R (1967) Studies on natural cross-pollination in pigeonpea (Cajanus cajan). J Agric Univ P R 51: 1–4
2. Agrawal RL (1980) Seed technology. Oxford and IBH Pub, New Delhi, India, 685 pp
3. Ali M (1990) Pigeonpea: cropping systems. In: Nene YL, Hall SD, Sheila VK (eds) The pigeonpea. CAB International, Oxon, UK, pp 279–302
4. Ariyanayagan RP (1976) Outcrossing and isolation in pigeonpea. Trop Grain Legume Bull 5: 14–17
5. Ariyanayagan RP, Nageshwar Rao A, Zaveri PP (1995) Cytoplasmic-genic male sterility in interspecific matings of Cajanus. Crop Sci 35: 981–985