Table 3.
Coefficient of variation of physiological traits and flowering time in B. distachyon diploid (within each cell, data above = D) and B. hybridum allotetraploid (within each cell, data below = T) lines under two watering regimes. A summary of the results of the general or generalized linear mixed analyses conducted to test for broad-sense genetic variation within and between populations in these traits is also shown. Significant values (P < 0.05) are in bold.
| Well watered | ||||||
|---|---|---|---|---|---|---|
| Source | Line (Population) | Population | ||||
| Trait | Coefficient of variation (%) |
Z | P | DF | F | P |
| A (µmol CO2 m−2s−1) | D: 69.19 T: 73.64 |
0.02 1.01 |
0.983 0.312 |
13,87 14,79 |
5.19 3.92 |
<0.0001 <0.0001 |
| gs (mmol m−2s1) | D: 152.85 T: 131.50 |
0.6 0.24 |
0.549 0.814 |
13,83 14.77 |
7.3 6.19 |
<0.0001 <0.0001 |
| Integrated WUE (δ13C ‰) | D: 3.34 T: 3.26 |
0.07 1.88 |
0.946 0.029 |
13,28 14,31 |
8.97 1.40 |
<0.0001 0.211 |
| Flowering time (# of days) |
D: 48.29 T: 54.66 |
5.0 4.21 |
<0.0001 <0.0001 |
13,74 14,81 |
19.87 17.85 |
<0.0001 <0.0001 |
| Water restricted | ||||||
| A (µmol CO2 m−2s−1) | D: 107.6 T: 98.6 |
1.11 0.87 |
0.268 0.384 |
13,75 14,66 |
2.27 4.34 |
0.014 <0.0001 |
| gs (mmol m−2s1) | D: 125.79 T: 125.33 |
0.31 0.47 |
0.758 0.635 |
13,72 14,72 |
3.55 6.11 |
0.0003 <0.0001 |
| Integrated WUE (δ13C ‰) | D: 4.01 T: 4.34 |
0.97 1.74 |
0.333 0.041 |
13,33 14,34 |
7.80 2.25 |
<0.0001 0.027 |
| Flowering time (# of days) |
D: 54.54 T: 58.74 |
2.93 3.62 |
0.0034 0.0003 |
12,40 13,48 |
5.53 2.94 |
<0.0001 0.0032 |