EFFECT OF PRESOWING CHEMICAL AND ORGANIC SEED HARDENING ON SEED QUALITY, GROWTH AND YIELD CHARACTERS IN RICE cv. IR 36

Rice cv. IR 36 seeds were given chemical and organic seed hardening treatment with 1% CaCl2, l% KCl, 1% KNO3, l% NaCl, 10% Cow dung and 3% Panchakavya of seed. The hardened seeds were evaluated initially both under laboratory and field experiments for seed quality, growth and yield attributing characters along with control. The results reveals that seeds hardened with 1% CaCl2 recorded higher values for initial seed quality characters such as germination percentage, speed of germination, root length, shoot length, seedling length, dry matter production, vigour index I and vigour index II under laboratory evaluation and the same treated seeds sown in field condition recorded higher values in growth and yield characters.

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