TABLE 2.
Results of greenhouse trials (n = 134) and nitrogenase assays (n =30) for S. lydicus WYEC108-colonized and noncolonized pea plants after 30 days of growth
| Response variable | Value for variable (mean ± SD)
|
t ratio | P | |
|---|---|---|---|---|
| Control | Test | |||
| Avg shoot length (cm) | 26.15 ± 7.25 | 35.08 ± 8.42 | −6.23 | 0.0001 |
| Avg root length (cm) | 13.66 ± 4.84 | 17.29 ± 5.79 | −3.54 | 0.0001 |
| Avg plant wet wt (g) | 1.90 ± 0.74 | 2.96 ± 1.09 | −6.15 | 0.0001 |
| Avg root wet wt (g) | 0.98 ± 0.46 | 1.49 ± 0.78 | −4.35 | 0.0001 |
| Avg no. of nodules | 23.32 ± 20.55 | 37.82 ± 26.53 | −3.36 | 0.0011 |
| Avg nodule wet wt (g) | 0.01 ± 0.0105 | 0.036 ± 0.0359 | −5.48 | 0.0001 |
| Avg nitrogenase activity (μmol of ethylene produced/h/plant) | 0.91 ± 1.64 | 8.07 ± 7.85 | −3.46 | 0.0018 |