Table 1.
Effect of varied K supply on total dry matter (g pot−1), leaf K concentration (mg g−1 DM) and assimilation rate AN (µmol CO2 m−2 s−1) of two barley cultivars (Sahin-91 and Milford) under two K application levels (low K: 0.04 and adequate K: 0.8 mM K) and two osmotic stress conditions (no stress: −PEG and with stress: +PEG). The numeric values are the means of treatments provided with standard error (±). Small letters show significance at the level of p < 0.05 (n = 3) calculated within each cultivar. For detailed and extensive information on this table please refer to [40].
| Cultivar | K Application | PEG | Total Plant DM (g pot−1) |
K Conc. (mg g−1 DM) |
AN (µmol CO2 m−2 s−1) |
gs (mmol m−2 s−1) |
|---|---|---|---|---|---|---|
| Sahin-91 | low K | - | 10.1 ± 1.9 c | 21.9 ± 0.5 b | 24.0 ± 2.5 ab | 383.5 ± 53.1 a |
| + | 4.9 ± 1.1 d | 24.8 ± 3.7 b | 0.7 ± 0.1 c | 8.8 ± 0.3 c | ||
| adequate K | - | 29.8 ± 0.8 a | 42.4 ± 1.8 a | 26.4 ± 2.3 a | 437.7 ± 32.0 a | |
| + | 15.8 ± 0.5 b | 44.4 ± 1.5 a | 17.3 ± 2.42 b | 146.3 ± 21.7 b | ||
| Milford | low K | - | 18.1 ± 1.7 b | 13.2 ± 1.2 b | 28.7 ± 2.0 a | 408.6 ± 26.4 b |
| + | 8.5 ± 1.8 c | 17.6 ± 0.1 b | 4.3 ± 2.1 c | 38.5 ± 19.4 d | ||
| adequate K | - | 38.9 ± 5.7 a | 40.8 ± 1.3 a | 28.1 ± 1.0 a | 534.6 ± 60.3 a | |
| + | 26.3 ± 2.6 b | 39.4 ± 1.8 a | 18.7 ± 1.2 b | 178.2 ± 19.1 c |