Table 3.
Means (SE) leaf physiological trait values for FIL2, HAL2 and F2 Panicum hallii plants
| Trait | N | FIL2 | N | HAL2 | LRT | N | F2 | F2 range |
|---|---|---|---|---|---|---|---|---|
| SPAD | 20 | 34.4 (0.64) | 18 | 32.7 (0.69) | 3 | 207 | 30 (0.44) | 18.9–40.5 |
| A (μmol CO2 m−2 s−1) | 19 | 15.1 (2.35) | 18 | 13.6 (2.23) | 0.87 | 196 | 12.8 (2.00) | 0.2–30.4 |
| gs (mol H2O m−2 s−1) | 19 | 0.091 (0.0112) | 18 | 0.102 (0.0112) | 0.77 | 196 | 0.082 (0.0077) | 0.019–0.184 |
| ci (μmol CO2 mol−1) | 19 | 114 (17) | 18 | 155 (17) | 8.97** | 196 | 127 (21) | 17–281 |
| qP | 20 | 0.57 (0.042) | 18 | 0.53 (0.042) | 0.99 | 213 | 0.53 (0.041) | 0.14–0.87 |
| Fv'/Fm' | 20 | 0.4 (0.0138) | 18 | 0.417 (0.0141) | 1.71 | 213 | 0.386 (0.0132) | 0.26–0.55 |
| ΦPSII | 20 | 0.235 (0.024) | 18 | 0.224 (0.0246) | 0.3 | 213 | 0.207 (0.0226) | 0.034–.408 |
N, number of replicates per parental lines or total number of F2 individuals (1 replicate per F2); LRT, Likelihood ratio test 
, H0, no difference in parental means
**
P < 0.01. At ambient CO2: A, net CO2 assimilation rate; gs, stomatal conductance to water; ci, intercellular CO2 concentration; qP, photochemical quenching; Fv'/Fm', light adapted efficiency of energy harvesting by PSII; ΦPSII, quantum yield of PSII.