Table 1.
Biomass accumulation in control and transgenic poplars under nitrate nutrition
| WT | Transgenic | ||||||
|---|---|---|---|---|---|---|---|
| Sample | Nitrate (mm) | Length (cm) | FW (g) | DW (g) | Length (cm) | FW (g) | DW (g) |
| Aerial Plant | 10 | 31.84 ± 0.70 | 5.40 ± 0.12cde | 2.28 ± 0.07cd | 39.16 ± 1.03 | 7.61 ± 0.19bc | 3.10 ± 0.10bc |
| Main Roots | 2.10 ± 0.28 | 0.78 ± 0.10 | 2.36 ± 0.98 | 1.04 ± 0.43 | |||
| Lateral Roots | 6.32 ± 1.47cd | 1.33 ± 0.42 | 4.72 ± 0.97 | 1.50 ± 0.59 | |||
| Aerial Plant | 50 | 51.62 ± 1.09 | 10.02 ± 0.30b | 3.51 ± 0.16b | 63.63 ± 1.20a | 22. 35 ± 1.12a | 8.42 ± 0.27a |
| Main Roots | 3.78 ± 0.65 | 0.82 ± 0.30 | 4.00 ± 0.82 | 1.71 ± 0.50 | |||
| Lateral Roots | 5.31 ± 0.44cde | 1.12 ± 0.50 | 6.23 ± 1.44cde | 1.54 ± 0.46 | |||
The parameters length, fresh weight (FW) and dry weight (DW) were compared between WT and transgenics grown under different concentrations of nitrate. Means with different lowercase letters are significantly different, P < 0.01 (ANOVA and Tukey's test).