Table 1. Variance Component Estimates and Summary Statistics for the Phenotypic Traits Measured.
| Phenotype (Units or Calculation) | Abbreviation | Environment | Mean | sd | VarEnv (%) | VarRILxEnv (%) | |
|---|---|---|---|---|---|---|---|
| Growth | Leaf area (cm2) | LA | Wet, dry, plast. | 18.40 | 9.160 | 66 | 1 |
| Growth rate (LAharvest/LApretreatment) | GR | Wet, dry, plast. | 5.44 | 7.660 | 72 | NA | |
| Relative GR [ln(LA)-ln(GR-LA)] | RGR | Wet, dry, plast. | 0.07 | 0.090 | 71 | NA | |
| Leaf wilting (%) | Wilt | Dry | 3.16 | 2.350 | NA | NA | |
| Leaf rolling (%) | Roll | Dry | 3.93 | 2.280 | NA | NA | |
| Biomass | Shoot fresh mass (g) | SFM | Wet, dry, plast. | 0.68 | 0.490 | 72 | 2 |
| Shoot dry mass (g) | SDM | Wet, dry, plast. | 0.06 | 0.026 | 36 | 0 | |
| Root dry mass (g) | RDM | Wet, dry, plast. | 0.01 | 0.004 | 5 | 0 | |
| Shoot:root ratio (SDM/RDM) | SR | Wet, dry, plast. | 6.02 | 1.860 | 42 | 0 | |
| Root mass ratio [RDM/(RDM+SDM)] | RMR | Wet, dry, plast. | 0.15 | 0.033 | 46 | 0 | |
| Grav. water content (SFM-SDM/SFM) | WC | Wet, dry, plast. | 87.80 | 5.540 | 83 | 2 | |
| Physiology | ABA conc. (μmol/g SDM) | ABA | Wet, dry, plast. | 5.92 | 5.960 | 1 | 0 |
| ABA (aqueous) (μmol/g SDM)* | Wet, dry, plast. | 0.72 | 1.100 | 35 | 0 | ||
| Water use efficiency (δ13C) | WUE | Wet, dry, plast. | −29.80 | 0.890 | 76 | 1 | |
| Proline conc. (μmol/g SFM) | Proline | Wet, dry, plast. | 93.60 | 102.500 | 85 | 4 | |
| Flowering time (days) | FT | Wet | 23.70 | 4.580 | NA | NA |
Genotype effects cannot be estimated for the growth rate traits because a single replicate was measured within each treatment. Environmental contributions cannot be estimated for the single environment phenotypes, wilting, rolling, and FT. Those traits that were not used for QTL mapping are indicated with an asterisk. SDM, shoot dry mass; SFM, shoot fresh mass.