Table 2.
List of growth and architectural variables of CS/1103P and CS/RGM plants cultivated in greenhouse during 45 days in the HN condition
| Growth parameters | CS/1103P | CS/RGM | Statistical significance |
|---|---|---|---|
| Root DW (g) | 10.61 ± 1.39 | 11.33 ± 1.03 | ns |
| Trunk DW (g) | 14.30 ± 1.20 | 9.39 ± 0.52 | * |
| Shoot DW (g) | 28.87 ± 1.75 | 27.37 ± 2.05 | ns |
| Plant DW (g) | 57.45 ± 3.81 | 52.27 ± 3.04 | ns |
| Leaf number | 99.87 ± 4.82 | 82.33 ± 3.62 | ns |
| Leaf surface (cm2) | 3685 ± 177 | 3337 ± 155 | ns |
| Shoot branching parameters | |||
| Total main stem length (cm) | 215.1 ± 12.0 | 177.8 ± 14.7 | ns |
| Main stem number | 2.14 ± 0.21 | 1.40 ± 0.13 | * |
| Node number | 52.93 ± 3.39 | 39.87 ± 3.22 | ns |
| Internode length (cm) | 4.04 ± 0.13 | 4.37 ± 0.15 | ns |
| Node number/total main stem length (cm–1) | 0.25 ± 0.01 | 0.23 ± 0.01 | ns |
| LB I number | 13.00 ± 1.01 | 7.00 ± 1.00 | ** |
| LB I length (cm) | 56.61 ± 11.81 | 50.67 ± 11.44 | ns |
| LB I number/node number | 0.26 ± 0.02 | 0.19 ± 0.03 | ** |
| LB I length/total main stem length (cm cm–1) | 0.28 ± 0.07 | 0.35 ± 0.09 | ns |
Data are represented as means ±SE, n=15 individual plants. For each variable, asterisks indicate significant differences between both genotypes as determined with Student’s t-test (with Bonferroni correction): *P<0.05, **P<0.01; ns, not significant. For main stem number a Fisher test was used and for the LB I number/node number a chi-squared test was used. DW, dry weight; LB, lateral branches.