Table 4 Parameters derived from the light response curves of CO2 fixation, the maximal Pn at light saturation point (Pnmax), apparent quantum yield (AQY) and dark respiration rate (Rd). The ambient CO2 concentration during measurements was 380–400 ppm in EMS (Early milk stage) (A) and 385 ppm in LMS (late milk stage) (B). Maximum rates of carboxylation at both CO2 and RuBP saturation (Vcmax) and maximum rate of electron transport (Jmax) derived from the CO2 response curves of photosynthetic CO2 uptake rate measured in 2013. n = 3
From: Architectural and Physiological Features to Gain High Yield in an Elite Rice Line YLY1
Pnmax (μmol m− 2 s−1) | AQY | Vcmax (μmol m− 2 s−1) | Jmax (μmol m− 2 s− 1) | |||
|---|---|---|---|---|---|---|
A | B | A | B | |||
YLY1 | 46.03 ± 3.14 | 37.28 ± 3.88 | 0.09 ± 0.01 | 0.07 ± 0.004 | 105.91 ± 4.35 | 191.66 ± 1.99 |
LYP9 | 39.72 ± 7.79 | 34.49 ± 2.81 | 0.08 ± 0.02 | 0.06 ± 0.005 | 92.33 ± 7.32 | 177.15 ± 7.19 |
P | 0.17 | 0.325 | < 0.05 | 0.33 | < 0.05 | < 0.05 |
Difference | 15.89% | 8.11% | 12.99% | 4.42% | 14.71% | 8.19% |