Table 2.
Sample | Y | NPQ | ETR | F0 | Fm | Fv/Fm |
---|---|---|---|---|---|---|
O/CH | 0.252 ± 0.026 a | 1.530 ± 0.130 abc | 35.17 ± 3.87 a | 255.0 ± 3.6 a | 1117 ± 25 ab | 0.771 ± 0.015 ab |
O/CL | 0.181 ± 0.004 bc | 1.967 ± 0.015 ab | 25.03 ± 0.56 bc | 261.0 ± 8.6 a | 1174 ± 55 a | 0.773 ± 0.009 ab |
O/DH | 0.120 ± 0.021 d | 2.100 ± 0.409 a | 20.80 ± 2.13 cd | 253.0 ± 35.0 a | 1047 ± 107 ab | 0.756 ± 0.024 b |
O/DL | 0.113 ± 0.003 d | 1.507 ± 0.289 abc | 15.73 ± 0.50 d | 264.7 ± 20.0 a | 1076 ± 16 ab | 0.766 ± 0.015 ab |
N/CH | 0.264 ± 0.007 a | 0.920 ± 0.242 c | 36.83 ± 1.07 a | 236.3 ± 8.3 a | 1111 ± 14 ab | 0.787 ± 0.007 a |
N/CL | 0.206 ± 0.022 b | 1.593 ± 0.320 abc | 28.23 ± 2.77 b | 246.3 ± 12.2 a | 1128 ± 52 ab | 0.781 ± 0.002 ab |
N/DH | 0.165 ± 0.015 bc | 1.950 ± 0.134 ab | 23.00 ± 2.17 bc | 223.3 ± 3.2 a | 1095 ± 29 ab | 0.776 ± 0.040 a |
N/DL | 0.152 ± 0.006 cd | 1.280 ± 0.204 bc | 21.13 ± 0.68 cd | 228.7 ± 4.0 a | 999 ± 41 b | 0.782 ± 0.011 ab |
a–d different letters in columns indicate statistically different mean values (p < 0.05). Y—quantum yield of photosynthetic energy; NPQ—non-photochemical quenching; ETR—electron transport rate; F0—minimum fluorescence; Fm—maximum fluorescence; Fv/Fm—maximum photochemical efficiency of photosystem II.