Dr. Y.M. ShuklaMUNGARA BALAKRISHNA2017-10-032017-10-032006http://krishikosh.egranth.ac.in/handle/1/5810032054Salinity is one of the severe abiotic stresses among the different stresses of paddy crop. Four varieties of paddy procured from Main Rice Research Station, Anand Agricultural University, Nawagam were : Jaya, Dandi, CSR-27 – all tolerant and GR-3 – susceptible. These varieties were differing in their degree of salt tolerance. All the varieties were grown in earthen pots up to 15 days following the normal practice of pot culture. Fifteen DAG seedlings after gently uprooting were treated with 100, 150 and 200 mM sodium chloride solution for 24, 48 and 72 h time intervals. Various physiological and biochemical observations were recorded for germination percentage, root length, shoot length, seedling vigour index, chlorophyll, total soluble sugars, proteins, SDS-PAGE, proline content, antioxidants enzymes such as super oxidase dismutase, peroxidase, polyphenol oxidase, catalase, esterase and their isoenzymes and sodium, potassium ionsenBiochemistryStudyThesis