Time course changes in leaf fresh weight (g leaf−1, mean of 8 leaves per plant) (A) and Na+ concentration (mmol g−1) in root (B), main stem (C) and leaves (D) of pearl millet parental genotypes (H 77/833-2, PRLT 2/89-33) and QTL-NILs (ICMR 01029, ICMR 01040) differing for a terminal drought tolerance QTL, at three salinity levels (ECiw 2, 10 and 15 dS m−1 imposed at 45 days after sowing). Na+ concentration expressed on dry weight basis in stem and root and on fresh weight basis in leaves.