Table 2.
Treatment means across RILs and for each parent for leaf gas-exchange, vegetative, and reproductive traits for genotypes of B. rapa within the well-watered (WW) and drought (DR) treatments. Standard errors are indicated in parentheses
| Trait | WW RIL treatment mean (SE) | WW IMB211 parent mean | WW r500 parent mean | DR RIL treatment mean (SE) | DR IMB211 parent mean | DR r500 parent mean |
|---|---|---|---|---|---|---|
| A (μmol m-2 s-1) | 27.50 (2.85) | 25.09 | 28.40 | 26.52 (2.33) | 25.09 | 27.72 |
| Fv'/Fm' | 0.45 (0.02) | 0.47 | 0.48 | 0.44 (0.02) | 0.46 | 0.45 |
| gs (mol m-2 s-1) | 0.43 (0.04) | 0.36 | 0.42 | 0.37 (0.03) | 0.32 | 0.39 |
| W g | 69.33 (1.38) | 74.08 | 70.12 | 76.86 (1.52) | 77.0 | 75.09 |
| δ13C | -28.03 (0.28) | NA | NA | -27.87 (0.29) | NA | NA |
| LMA (g m-2) | 58.97 (0.91) | 57.55 | 55.71 | 62.04 (0.97) | 59.0 | 61.11 |
| Above-ground biomass (g) | 19.32 (2.21) | 9.77 | 67.48 | 10.09 (1.00) | 5.66 | 40.61 |
| Below-ground biomass (g) | 0.54 (0.06) | 0.30 | 2.78 | 0.37 (0.03) | 0.35 | 1.60 |
| Root:Shoot ratio | 0.029 (0.00) | 0.032 | 0.036 | 0.04 (0.002) | 0.063 | 0.041 |
| Leaf area (cm2) | 14.99 (1.07) | 13.11 | 48.48 | 11.89 (0.47) | 11.55 | 20.89 |
| Plant height (cm) | 39.46 (1.23) | 26.87 | 72.85 | 33.16 (1.31) | 24.76 | 60.95 |
| Fruit production (number of fruits) | 179.83 (12.72) | 143.03 | 306.78 | 93.06 (7.35) | 75.60 | 198.67 |
| Days to flowering | 34.91 (0.34) | 31.63 | 38.91 | 34.51 (0.28) | 31.38 | 39.48 |
A photosynthetic rate, Fv'/Fm' chlorophyll fluorescence in light, g s stomatal conductance, W g intrinsic water use efficiency (A/g s), δ 13 C carbon isotope composition, LMA leaf mass per area