Na+concentration in the leaf is highly associated with the HKT1;5 allele across diverse accessions. Association of Na+ concentrations in leaves with the HKT1;5 allele. Mean (solid horizontal line) and SE (broken horizontal lines) for each allele group are indicated. Lines carrying the Aromatic allele generally showed the greatest exclusion, followed by the Aus and Hasawi alleles. Lines carrying the Japonica allele generally showed the least exclusion, followed by lines with the IR29 allele.