Short-term NaCl exposure and K⁺ efflux and retention.

Effect of sudden application of 160 mM NaCl to K+ efflux and K+ content loss (from the cytosol and total tissue) from roots of three rice (Oryza sativa L.) cultivars grown under varying nutritional conditions. Letters indicate significantly different means (one-way ANOVA with Bonferroni post-test, P<0.05) between cultivars within an N regime. Asterisks denote different levels of significance between control and treatment pairs used to determine K+tissue loss (ns: not significant, *: 0.01t-test). 1cytosolic K+; 2total tissue K+; 3not determined.