Morpho-physiological characters associated with grain yield of rabi sorghum genotypes under shallow soils

A field experiment was conducted on shallow soils at Regional Agricultural Research Station, Bijapur, University of Agricultural Sciences, Dharwad (Karnataka) during rabi season. Among the genotypes, RSLG-1119, RSLG-871, RSV-423 and Maulee gave higher yields compared to other genotypes. The factors that favoured the higher yields were leaf area index, chlorophyll content, relative water content and panicle dry weight. The production of dry matter alone did not help in realizing the higher yield. In case of high yielder, there was an efficient dry matter production as well as translocation from source to sink. Less member of factors in moderate and only few factors had favoured the low yielders. It was observed that the differential performance of genotypes was due to difference in the dry matter partitioning efficiency.