Effect of seed hardening chemicals on morpho-physiological attributes in green gram (Vigna radiata L.)

Abstract

The present investigation was carried out to study the effect of seed hardening on morpho-physiological parameters in green gram. The green gram var. GAM-5 was imposed with various seed hardening treatments i.e., 2% CaCl2, 500 ppm Cycocel, 1000 ppm Cycocel, 25 ppm NAA, 50 ppm NAA, water soaked control and absolute control. The above treated seeds along with control were evaluated for their seed quality parameters, morpho-physiological parameters under laboratory condition. The study revealed that seeds hardened with CaCl2 @ 2% recorded higher germination per cent, root length, fresh weight of shoot, turgor shoot weight, shoot dry weight, root fresh weight, root turgor weight, root dry weight, seed vigour index I & II and root to shoot ratio. The treatments CaCl2 2% followed by Cycocel 1000 ppm were found to be superior for most physiological parameters as compared to other treatments and control on the basis of lab studies.