Table 1 Quantitative genetic partitioning and significance of effects 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 VG (SE) | WW block effect (SE) | WW VG/VP | DR treatment VG (SE) | DR block effect (SE) | DR VG/VP |
|---|---|---|---|---|---|---|
A (μmol m-2 s-1) | 21.10 (3.71)** | 1.16 (0.88) NS | 0.21 | 25.24 (4.66)** | 1.09 (0.96) NS | 0.24 |
Fv'/Fm' | 0.004 (0.00)** | 0.000 (0.000) NS | 0.54 | 0.005 (0.0007)** | 0.00003 (0.00003) NS | 0.67 |
gs (mol m-2 s-1) | 0.003 (0.0008)** | 0.001 (0.001) NS | 0.09 | 0.004 (0.0009)** | 0.0009 (0.0006) NS | 0.14 |
W g | 34.49 (16.63)** | 6.79 (6.96) NS | 0.05 | 60.72 (17.20)** | 10.29 (7.59) NS | 0.14 |
δ13C | 1.29 (0.49)** | 0.004 (0.04) NS | 0.64 | 1.31 (0.4835)** | 0.05 (0.05) NS | 0.75 |
LMA (g m-2) | 29.57 (8.52)** | 1.77 (2.23) NS | 0.13 | 17.641 (7.08)** | 3.02 (3.03) NS | 0.09 |
Above-ground biomass (g) | 118.53 (17.46)** | 30.05 (16.6)‡ | 0.46 | 42.52 (6.12)** | 4.84 (2.74)‡ | 0.57 |
Below-ground biomass (g) | 0.16 (0.02)** | 0.02 (0.008)‡ | 0.48 | 0.06 (0.008)** | 0.005 (0.003)‡ | 0.61 |
Root:Shoot ratio | 0.00003 (0.000008)** | 0.00002 (0.00001)‡ | 0.13 | 0.0001 (0.00002)** | 0.00002 (0.00001) NS | 0.20 |
Leaf area (cm2) | 39.14 (6.66)** | 4.38 (3.13) NS | 0.36 | 10.96 (2.39)** | 0.47 (0.49) NS | 0.25 |
Plant height (cm) | 103.84 (15.65)** | 4.30 (2.87) NS | 0.46 | 84.3845 (15.0446)** | 6.21 (4.31) NS | 0.31 |
Fruit production (number of fruits) | 10672 (1502.06)** | 526.17 (317.08)‡ | 0.57 | 3095.72 (441.96)** | 206.77 (121.81)‡ | 0.57 |
Days to flowering | 3.91 (0.66)** | 0.57 (0.34)‡ | 0.30 | 4.76 (0.77)** | 0.23 (0.16) NS | 0.39 |