Major problem in agriculture is adequate seed storage due to difficulties in maintaining seed viability and vigour. Fifty French bean genotypes were taken to study the physiological basis of seed deterioration. The seeds were aged for 45°C and 100% RH and physiological parameters were recorded. Moisture content ranged from % to %. There was increase in moisture content across treatments. The speed of germination differed significantly among the different treatments. The fresh seed lot recorded significantly higher speed of germination. | Physiological manifestation during seed deterioration in Phaseolus vulgaris germplasm
