Author(s):

Anubhuti Singh, Reeshu Singh, Ankit Singh, Dr. AK Singh and Dr. AK Singh

Abstract: The present investigation was conducted during Kharif 2017-18 in laboratory, at experimental study department of Crop Physiology, Acharya Narendra Dev University of Agriculture and technology, Kumarganj, Ayodhya (U.P.). Soil salinity has become a severe threat to ensure food security , salinity-imposed limitations on plant growth are manifested through osmotic and ionic imbalances. At the present, salinity is considered as a serious constraint in increasing the rice production .Seed priming stimulates many of the metabolic processes involved in early phases of germination, resulting in an improved seed performance and provides faster and synchronized germination and more vigorous seedlings. The concentration of Glycine betaine is 50,100 & 150 ppm which influences the germination attributes under salinity. Experiment was laid out in complete randomized design (CRD) with three replications on two genotypes of rice crop i.e. Usar dhan-3 and Pusa-44 with different salinity level i.e. (50,100 & 150 mM NaCl) under anaerobic condition. Germination and seed vigour both were delayed and decreased with increasing level of salinity. The adverse effect of salt is more pronounced in susceptible variety (Pusa-44) than the tolerant (Usar dhan-3). It is evident with the result that seed priming with glycine betaine improved germination percentage significantly over control in both saline as well as non-saline conditions.

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