International Research journal of Management Science and Technology

  ISSN 2250 - 1959 (online) ISSN 2348 - 9367 (Print) New DOI : 10.32804/IRJMST

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SALINITY EFFECTS ON ROSELLE (HIBISCUS SABDARIFFA L.)

    3 Author(s):  RATHNAM. K , SHANKAR. A , SIVA RAJ. N

Vol -  6, Issue- 3 ,         Page(s) : 192 - 201  (2015 ) DOI : https://doi.org/10.32804/IRJMST

Abstract

Roselle (Hibiscus sabdariffa L.) is an important leafy vegetable in the country and used for medicinal and industrial purposes. Knowledge on physiological basis of salt tolerance in Hibiscus sabdariffa plant species is an essential pre-requisite not only for success of efforts aimed at selecting salt tolerant landraces, but also for perpetuation of their biodiversity as well as their sustainability. Effect of salinity stress using different concentrations (0.15%, 0.30% and 0.45%) of various salts (NaCl, Na2SO4, Na2CO3, NaCl+ Na2SO4, NaCl+ Na2CO3, Na2SO4+ Na2CO3, NaCl+ Na2SO4+ Na2CO3) was studied in three landraces (R.K.S.I, R.K.S.II and R.K.S.III) of Roselle (Hibiscus sabdariffa L.) at 30 and 90 days after sowing. Salinity stress effects on reducing sugars, total proteins, alpha amylase and proline, of the landraces were studied. Based on the present study, the roselle landrace R.K.S. II (Hibiscus sabdariffa L.) was found to be more salt tolerant than the other two landraces (R.K.S.I and R.K.S.III).

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