Table 1  Means, quantitative genetic partitioning, and significance of effects for ecophysiological and phenological traits for 150 RILs of B. rapa in each treatment in which the trait was measured
TraitTreatmentMean (SE)VG (SE)VG/VP
A (µmol m−2 sec−1)WL18.95 (0.2445)6.0043 (1.0076)****0.3466
Fv′/FmWL0.4427 (0.0086)0.0015 (0.0002)****0.5564
gs (mol m−2 sec−1)WL0.4513 (0.0496)0.0035 (0.0008)****0.1209
E (mmol m−2 sec−1)WL8.5765 (0.8372)0.9133 (0.2262)****0.1090
Wg (A gs−1)WL47.5810 (5.4830)58.54 (13.0246)****0.1489
Δ13CWL24.2650 (0.1340)0.2743 (0.0676)****0.1889
CL23.2048 (0.1359)0.4279 (0.0.1032)****0.2747
CS23.9644 (0.1352)0.6644 (0.09571)****0.6261
Narea (g m−2)WL1.7496 (0.02994)0.0324 (0.0093)***0.1724
CL2.4315 (0.03169)0.05839 (0.0202)**0.1541
CS2.1822 (0.03112)0.0771 (0.0156)****0.3294
Days to floweringWL40.6675 (2.3888)43.1109 (5.9667)****0.5143
CL70.0479 (2.3961)34.2299 (8.1085)****0.1561
CS78.7036 (2.3925)79.129 (12.4583)****0.3388
LMA (g m−2)WL26.5130 (0.6258)16.7614 (2.8080)****0.3092
CL35.0710 (0.6458)5.7805 (4.2830)0.0398
CS31.9813 (0.6378)18.9177 (4.3201)****0.1974
  • Standard errors are indicated in parentheses. VG, among-genotypic variance; VG/VP, among-genotypic variance divided by total phenotypic variance; A, photosynthetic rate; Fv′/Fm′, chlorophyll fluorescence in light; gs, stomatal conductance; E, transpiration rate; Wg, intrinsic water-use efficiency (A/gs); Δ13C, carbon isotope discrimination; Narea, nitrogen concentration on a leaf area basis; LMA, leaf mass per area. *P < 0.05; **P < 0.01; ***P < 0.001; ****P < 0.0001.