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Salinity Tolerance of Rice as Affected by Zn Application


Author(s) : Akhtar J. Ranjha A. M. M. Aslam Iqbal M., 
Publisher : N/A
Publication Date : 2000
ISSN : N/A
Abstract : In a solution culture study two rice varieties i.e. KS-282 (salt tolerant) and BG 402-4 (salt sensitive) were grown to determine the effect of Zn applied @ 1, 10, 100 and 1000 nM ZnSO4 on shoot fresh weight and concentration of Na, K, Cl, Zn and P, when exposed to NaCl salinity (0 and 70 mol m-3 NaCl). Addition of Zn caused increase in shoot fresh weight under both saline and non-saline conditions, however growth was higher under O salinity. Concentration of Zn, P and K were increased while those of Na and Cl decreased in shoot under saline conditions. Salt tolerance rice maintained low concentration of Na, Cl and P but higher that of Zn and K., In a solution culture study two rice varieties i.e. KS-282 (salt tolerant) and BG 402-4 (salt sensitive) were grown to determine the effect of Zn applied @ 1, 10, 100 and 1000 nM ZnSO4 on shoot fresh weight and concentration of Na, K, Cl, Zn and P, when exposed to NaCl salinity (0 and 70 mol m‾3 NaCl). Addition of Zn caused increase in shoot fresh weight under both saline and non-saline conditions, however growth was higher under 0 salinity. Concentration of Zn, P and K were increased while those of Na and Cl decreased in shoot under saline conditions. Salt tolerant rice maintained low concentration of Na, Cl and P but higher that of Zn and K.,