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Effect of salinity on growth and germination of five rice varieties cultivated in Ampara district

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dc.contributor.author Thomas, I. B. K.
dc.contributor.author Rizvi, E. M. J. M.
dc.contributor.author Mayazir, N. N.
dc.date.accessioned 2019-06-06T07:00:07Z
dc.date.available 2019-06-06T07:00:07Z
dc.date.issued 2018
dc.identifier.citation 8th International Symposium 2018 on “Innovative Multidisciplinary Research for Green Development”. 17th - 18th December, 2018. South Eastern University of Sri Lanka, University Park, Oluvil, Sri Lanka. pp. 61-70. en_US
dc.identifier.isbn 978-955-627-141-6
dc.identifier.uri http://ir.lib.seu.ac.lk/handle/123456789/3529
dc.description.abstract Five new improved rice varieties released by Rice Research and Development Institute, Bathalagoda were screened against salt tolerance for seed germination and early seedling growth using five different salinity levels (0, 4, 8, 12, and 16 dS/m). Measurements were taken for root length, shoot length, fresh weight of seedlings, dry weight of seedlings, germination energy, speed of germination and final germination percentage. All the tested variables, except dry weight of seedlings, decreased with increasing salinity and had a significant difference (p<0.05) between salinity levels. Osmotic stress due to increasing salinity and toxic effect due to high sodium ion concentration interfere water absorption by plants and affect physiological activities in seeds and seed germination. Among the rice varieties used, Bg 357 rice variety had a higher root length, shoot length, fresh weight of seedlings, germination energy, speed of germination and final germination percentage and was considered as tolerant to salt. All the other rice varieties had different degrees of sensitivity to salinity. en_US
dc.language.iso en_US en_US
dc.publisher South Eastern University of Sri Lanka, University Park, Oluvil, Sri Lanka. en_US
dc.subject Salt tolerance en_US
dc.subject Germination en_US
dc.subject Seedling growth en_US
dc.subject Osmotic stress en_US
dc.title Effect of salinity on growth and germination of five rice varieties cultivated in Ampara district en_US
dc.type Article en_US


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