Table 2.
Mean (±SE) of different fluorescence parameters: quantum yield of PSII (ФII), quantum yield of non‐photochemical quenching (фNPQ), quantum yield of other unregulated (non‐photochemical) losses (фNO), maximum quantum yield of PSII in light‐adapted state (Fv'/Fm') and linear electron flux (LEF) in P. lanceolata plants under different levels of water reduction (W100 = field capacity, W50 = 50% field capacity, W25 = 25% field capacity) and light reduction (direct light, shade).
| W100 | W50 | W25 | ||||
|---|---|---|---|---|---|---|
| AMnat | AMinv | AMnat | AMinv | AMnat | AMinv | |
| Water reduction | ||||||
| фII | 0.48 (±0.02) a | 0.49 (±0.019) | 0.48 (±0.02) a | 0.46 (±0.01) | 0.40 (±0.03) b | 0.45 (±0.02) |
| фNPQ | 0.18 (±0.09) | 0.14 (±0.01) B | 0.13 (±0.0.02) | 0.16 (±0.02) AB | 0.20 (±0.05) | 0.22 (±0.06) A |
| фNO | 0.35 (±0.07) | 0.36 (±0.06) | 0.35 (±0.08) | 0.38 (±0.04) | 0.41 (±0.09) | 0.33 (±0.04) |
| Fv'/Fm' | 0.77 (±0.02) | 0.78 (±0.01) A | 0.78 (±0.01) | 0.77 (±0.01) A | 0.76 (±0.03) | 0.75 (±0.03) B |
| LEF | 67.20 (±12.6) a | 61.10 (±12.4) | 46.9 (±6.7) b | 66.20 (±24.2)* | 41.80 (±8.4) b | 48.50 (±5.9) |
| Light | Shade | |||
|---|---|---|---|---|
| AMnat | AMinv | AMnat | AMinv | |
| Light reduction | ||||
| фII | 0.48 (±0.02) | 0.49 (±0.02) | 0.43 (±0.02)** | 0.50 (±0.015) |
| фNPQ | 0.18 (±0.03) | 0.14 (±0.005) | 0.18 (±0.01) | 0.15 (±0.01) |
| фNO | 0.35 (±0.02) | 0.36 (±0.02) | 0.39 (±0.01)* | 0.35 (±0.01) |
| Fv'/Fm' | 0.77 (±0.006) | 0.78 (±0.003) | 0.77 (±0.004) | 0.77 (±0.003) |
| LEF | 67.23 (±4.23) a | 61.07 (±4.14) A | 41.20 (±1.7) b,*** | 31.30 (±1.48) B |
Capital letters indicate significant differences between plants inoculated with AMinv and lowercase letters indicate significant differences in plants inoculated with AMnat after ANOVA using Tukey’s HSD or Student's t‐test at P ≤ 0.05. Asterisks indicate significant differences between AMnat and AMinv plants within the same stress level at *P ≤ 0.05, **P ≤ 0.01 and ***P ≤ 0.001.