Growth response, water relations and K/Na ratio in wheat under sodium and calcium interactions

A study was conducted in the glass house to observe the role of k/na ratio and moisture contents on the growth of wheat (triticum aestivum l .cv. lu-26) under nacl stress. the plants were grown under hydroponic conditions at two salinity levels of 0 and 50 mm as nacl. calcium as caso4. 2h2o was applied at 3 and 6 mm to the pots of salinity. the plants were harvested after 30 days of growth. the treatments showed a highly significant (p< 0.01) effect on the growth and ionic relations. fresh weight of shoot and root increased by 44 and 41 % respectively, with increased application of caso4 from 3 to 6 mm in the saline medium. dry mass was increased by 46% at 50 mm of nacl with the application of 6 mm of caso4.2h2o. relative water content in the root decreased with the application of caso4.2h2o in saline treatment as compared to non-saline treatment. the increased k/na ratio had a pronounced effect on the increase of dry mass of shoot by 72% at 6 mm than 3 mm of caso4.2h2o application in the saline medium.