Table 1.
Leaf pigment contents of wheat varieties grown under control and heat stress conditions.
| Variety | Growing Condition | Chl a (mg g−1 FW) |
Chl b (mg g−1 FW) |
Total Chl (mg g−1 FW) |
Chl a/b Ratio |
Carotenoid (mg g−1 FW) ǂ |
Anthocyanin (µg g−1 FW)¶ |
|---|---|---|---|---|---|---|---|
| BG23 | Control | 0.49 ± 0.01 a,b | 0.26 ± 0.01 c,e | 0.75 ± 0.01 a–c | 1.88 ± 0.13 a | 0.09 ± 0.008 b–d | 71.51 ± 0.55 b |
| Heat stress | 0.42 ± 0.01 c | 0.23 ± 0.01 e | 0.65 ± 0.01 d,e | 1.83 ± 0.12 a,b | 0.07 ± 0.012 c–e | 55.73 ± 0.47 d | |
| (85.6 ± 1.45) | (88.8 ± 1.58) | (86.7 ±1.24) | (77.8 ± 5.88) | (78.0 ± 1.25) | |||
| BG25 | Control | 0.50 ± 0.02 a | 0.32 ± 0.02 a,b | 0.83 ± 0.02 a | 1.57 ± 0.12 a–c | 0.13 ± 0.015 a,b | 80.40 ± 0.67 a |
| Heat stress | 0.42 ± 0.01 c | 0.28 ± 0.01 b–e | 0.70 ± 0.02 c,d | 1.50 ± 0.01 b,c | 0.11 ± 0.012 b,c | 67.40 ± 0.50 c | |
| (83.5 ± 0.83) | (87.2 ± 5.61) | (84.7 ± 1.67) | (84.6 ± 1.04) | (83.9 ± 1.26) | |||
| BG26 | Control | 0.44 ± 0.01 b,c | 0.35 ± 0.01 a | 0.79 ± 0.01 a,b | 1.26 ± 0.03 c | 0.17 ± 0.009 a | 79.25 ± 0.83 a |
| Heat stress | 0.38 ± 0.01 c,d | 0.31 ± 0.01 a–c | 0.70 ± 0.01 c,d | 1.23 ± 0.08 c | 0.15 ± 0.014 a,b | 67.56 ± 0.59 c | |
| (87.2 ± 2.58) | (89.5 ± 2.61) | (88.2 ± 0.35) | (88.2 ± 8.48) | (85.3 ± 0.77) | |||
| Pavon | Control | 0.43 ± 0.01 b,c | 0.30 ± 0.01 a–d | 0.73 ± 0.02 b,c | 1.42 ± 0.05 c | 0.05 ± 0.012 d,e | 71.21 ± 0.74 b |
| Heat stress | 0.32 ± 0.02 d | 0.25 ± 0.01 d,e | 0.58 ± 0.02 e | 1.28 ± 0.10 c | 0.03 ± 0.009 e | 50.74 ± 0.65 e | |
| (75.3 ± 4.41) | (83.6 ± 4.88) | (78.6 ± 1.62) | (60.0 ± 8.45) | (71.3 ± 0.91) |
Values represent as mean ±SE. Figures in the parentheses indicate stability of that pigment. Values in a column with different letter(s) are significantly different at p ≤ 0.05. ǂ lutein equivalent, and cyanidin-3-glucoside equivalent.