BIOCHEMICAL CHARACTERIZATION AND EFFECTS OF OSMOPROTECTANTS UPON SODIUM CHLORIDE SALINITY STRESS IN RICE CULTIVARS
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Date
2006
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Anand Agricultural University, Anand
Abstract
Salinity 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 ions
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Keywords
Biochemistry, Study