TABLE 1.
Effects of Mg and IAA on maximum relative electron transport rate (rETRmax) and minimum saturating irradiance (Ik) in PSI and PSII under Al stress.
| pH4.5 | pH4.5+Al | pH4.5+Al+Mg | pH4.5+Al+IAA | pH4.5+Al+Mg+IAA | |||
| 3 days | PSI | rETRmax | 250.7 ± 5.5a | 198.4 ± 15.1d | 301.63 ± 10.8bc | 261.6 ± 16.4c | 318.8 ± 13.5ab |
| Ik | 953.5 ± 40.3a | 543.4 ± 72.1c | 740.9 ± 13.9b | 642.9 ± 25.5bc | 917.7 ± 77.1a | ||
| PSII | rETRmax | 249.7 ± 20.5a | 115.5 ± 4.1d | 224.1 ± 7.0ab | 182.6 ± 14.3c | 207.2 ± 8.3bc | |
| Ik | 827.7 ± 50.1a | 405.7 ± 38.1c | 710.4 ± 32.1b | 634.3 ± 25.9b | 662.4 ± 38.6b | ||
| 6 days | PSI | rETRmax | 247.5 ± 7.5ab | 220.5 ± 23.8b | 286.8 ± 4.4a | 296.7 ± 28.1a | 305.6 ± 16.1a |
| Ik | 679.4 ± 59.4bc | 657.1 ± 66.8c | 768.8 ± 44.1a | 758.2 ± 51.5a | 727.7 ± 32.5ab | ||
| PSII | rETRmax | 151.8 ± 13.7b | 152.7 ± 20.3b | 223.2 ± 6.1a | 217.4 ± 14.6a | 212.2 ± 7.2a | |
| Ik | 655.9 ± 76.8ab | 507.1 ± 91.5b | 718.6 ± 35.1a | 711.7 ± 52.6a | 690.9 ± 15.3a |
Data are the means ± SE. Values followed by different letters are significantly different at p ≤ 0.05.