Table 2.
Influence of low N nutrition on biomass in the sand culture experiment
| Cultivars | Treatment | Total clipping dry weight (mg.cm− 2) | Verdure dry weight (mg.cm− 2) | Rhizome dry weight (mg.cm− 2) | Root dry weight (mg.cm− 2) | Plant dry weight (mg.cm− 2) |
|---|---|---|---|---|---|---|
| C291 | 5 mM | 32.06 ± 0.31 ab | 29.08 ± 1.11 a | 26.20 ± 1.42 a | 6.81 ± 0.34 a | 94.15 ± 1.97 a |
| 0.5 mM | 28.72 ± 1.45 bc | 27.29 ± 1.09 a | 27.47 ± 1.44 a | 7.14 ± 0.41 a | 90.62 ± 2.32 a | |
| C716 | 5 mM | 32.70 ± 1.00 a | 16.69 ± 1.37 b | 20.16 ± 0.94 b | 6.73 ± 0.24 ab | 76.28 ± 2.42 b |
| 0.5 mM | 25.36 ± 1.05 c | 10.71 ± 1.12 c | 22.09 ± 1.18 b | 6.36 ± 0.57 b | 64.52 ± 1.92 c | |
| FA | 1.76 | 380.22** | 32.92** | 12.74* | 276.26** | |
| FN | 27.09** | 27.31** | 2.61 | 0.02 | 25.74** | |
| FA*N | 3.8 | 7.97* | 0.11 | 8.18* | 9.00* |
FA, FN, and FA*N refer to the F values of the accession, N treatment, and the interaction between the accession and N treatment, respectively. ** indicates significance at the level of P < 0.01; the letters after the numbers indicate significant differences (P < 0.05).