Table 2.
Influence of Nectria haematococca on root characteristics of tomato plants under drought stress conditions in unsterilized soil
| Treatment | Total root length (cm) | Primary root diameter (µm) | Lateral root | Root hairs | |||||
|---|---|---|---|---|---|---|---|---|---|
| Number (per plant) | Diameter (µm) | Number (per cm root) | Length (µm) | Diameter (µm) | |||||
| 1st order | 2nd order | 1st order | 2nd order | ||||||
| NC | 21.92 ± 1.31a | 294.00 ± 17.04b | 26.55 ± 2.14a | 17.50 ± 1.73b | 162.67 ± 9.51a | 104.00 ± 6.78b | 122.67 ± 24.62b | 129.20 ± 3.09a | 11.33 ± 0.82a |
| PC | 24.40 ± 1.52ab | 216.00 ± 6.09a | 29.20 ± 1.83a | 15.40 ± 1.96b | 146.00 ± 20.37a | 88.80 ± 2.98a | 103.33 ± 39.48b | 130.40 ± 1.33a | 10.67 ± 0.66a |
| NH | 27.71 ± 0.93a | 309.33 ± 20.02b | 32.80 ± 1.65a | 47.25 ± 2.05a | 176.17 ± 20.56a | 104.17 ± 9.71b | 384.33 ± 88.57a | 168.80 ± 2.96b | 15.50 ± 2.26a |
| (F2,14) | 5.143* | 10.314** | 2.783 ns | 85.974*** | 0.738ns | 10.970** | 7.383* | 75.952*** | 3.308ns |
Means in a column followed by a same letter(s) are not significantly (P > 0.05) different according to Duncan’s Multiple Range Test
NC Negative control, PC Positive control, NH-N. haematococca inoculated
***Significant at 0.1% level, *Significant at 5% level, ns non significant