Table 1.
Characteristics of the net photosynthetic rate and chlorophyll fluorescence parameters of rice leaves sprayed with DTT (NPQ inhibitor), ASA (NPQ promoter) or 0.005% (v/v) Tween-80 (control) in two rice genotypes (Chl-8 and Zhefu802) in the moderate light treatment.
| Genotypes | Treatments | Pn | Fv/Fm | ΦPSII | qP |
|---|---|---|---|---|---|
| Control | 17.73d | 0.719c | 0.334d | 0.499bc | |
| Zhefu802 | DTT | 15.96e | 0.714c | 0.303e | 0.444c |
| ASA | 20.00c | 0.744b | 0.401c | 0.603a | |
| Control | 23.26b | 0.788a | 0.458a | 0.642a | |
| Chl-8 | DTT | 19.92c | 0.750b | 0.394c | 0.526b |
| ASA | 24.55a | 0.791a | 0.420bc | 0.604a |
Net photosynthetic rate and chlorophyll fluorescence parameters were determined on leaves attached to the plants 1 day after foliage was sprayed (n = 6). Different letters denote significant difference (P < 0.05) within the same rice genotype.