Effect of Chemo Priming on Plant Growth and Bulb Yield in Onion

Onion (Allium cepa L.) is one of the important commercial vegetable crop and it is a condiment cum bulb vegetable, the onion seeds exhibit orthodox storage and its seed deterioration is inevitable, its rate could be slowed down by chemo priming. Chemo priming technology was adopted under specific regime to improve the performance of seeds which differ with vigour and viability, physiological and chemical composition of the seeds. Priming is a technique accompanied by imbibing the seeds in an osmoticum that allows the seeds to imbibe water to a level that permits initial steps of germination and prevents radicle emergence. Thus the study was under taken to elucidate the effect of chemo priming on productivity. The purpose of the treatment is to shorten the time between planting and emergence and protect the seeds from biotic and abiotic factors at critical stages.