Seed priming is controlled hydration of seeds to a level that allow pre-germinative metabolic activity to continue, but interrupt the emergence of the radicle. Seed priming improves seed performance, ensures uniformity and better establishment, enhances the yield in diverse environments, greater tolerance to environmental stress and helps to overcome dormancy. Change in seed water content, cell cycle regulation, modification of seed ultrastructure, management of oxidative stress and reserve mobilization are the major physiological and biochemical changes takes places during seed priming. Priming methods adopted should be simple and affordable for its easy spread and adaptability. Seed priming should be influenced by factors such as light, aeration, temperature, time and seed quality. Different methods of priming are hydropriming, osmopriming, halopriming, solid matrix priming, biopriming and hormonal priming. Seed priming had significant effect on agriculture. It will hasten and synchronize the germination, enhances the plant growth, have better stress resistance, increase the use efficiency of nutrients and water and have better weed suppression effect. The review paper discusses about seed priming, physiological and biochemical changes in seed priming, different methods of seed priming and its role in sustainable agriculture.
Seed priming, Seed priming methods, Physiological and biochemical changes in seed priming, Seed priming in agriculture
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