Field experiment was conducted with seven rabi sorghum genotypes consisting of three dates of sowing viz.,
D1-1st week of October, D2-1st week of November, D3- 1st week of December at Main Agricultural Research Station,
University of Agricultural Sciences, Dharwad during rabi season to know the performance of rabi germplasm materials
under receding soil moisture condition and to understand genetic variations for drought tolerance in different genotypes.
The performance of the genotypes with respect to biophysical characters were superior during D1 (1st week of October)
were mainly due to the differences in the amount of receding soil moisture which was more during D1. The relative water
content (RWC) was maximum at 50 per cent anthesis and decreased with advancement in the crop growth. Among the
genotypes, maximum RWC was observed in BJV 44 and CSV 29 R at all the stages. Higher photosynthetic rate at flowering
gave higher grain yield in the receding soil moisture conditions. With regard to grain yield the genotypes BJV 44, CSV 29 R,
Phule Anuradha performed well under receding soil moisture conditions.