Standardization of seed primingon seed quality parameters in rice

Abstract

Laboratory experiment was conducted to study standardization of seed priming with chemicals, bio control agents as well as plant growth regulators on seed quality parameters of rice. Seed priming, an effective seed invigouration method, has become a common seed treatment to increase the rate and uniformity of emergence and crop establishment in most vegetable and flower crops especially in advanced countries. The seeds of rice were given priming treatments viz., CaCl2, CaSO4,ZnSO4, FeSO4, Pseudomonas fluorescens, Azophos and Pungam leaf extract at 0.5 and 1.0% each and with GA3, IBA at both 10 and 20 ppm concentrations for 12 and 18h soaking durations and sown along with control under laboratory condition. The results revealed that seed priming with Azophos 1.0%, ZnSO4 1.0%, GA3 20ppm, Pseudomonas fluorescens 1.0%, CaSO4 1.0% and FeSO4 1.0% for 18h could be recommended as suitable priming treatments for enhancing germination and vigour of rice.