Seetharama, N and Flower, D J and Jayachandran, R and Krishna, K R and Peacock, J M and Singh, S and Soman, P and Rani, A U and Wani, S P  (1990) Assessment of Genotypic Differences in Sorghum Root Characteristics.  In: Proceedings of the International Congress of Plant Phlsiology, 15-20 Feb. 1988, New Delhi, India.