Table 2.
Comparison of tobacco growth and morphological traits (e.g., plant height and leaf area) between the control and inoculation groups.
| Plant growth parameters | Treatments | |||
|---|---|---|---|---|
| HCH2-3 | FGD5-2 | MTD4-1 | Control | |
| Plant height (cm) | 5.08 ± 0.07b | 5.83 ± 0.09a | 4.88 ± 0.05b | 3.05 ± 0.04c |
| Maximum leaf area (cm2) | 38.08 ± 2.30b | 46.40 ± 1.17ab | 49.01 ± 2.28a | 27.51 ± 2.17c |
| Numbers of effective leaves | 4.67 ± 0.19a | 4.67 ± 0.19a | 5.00 ± 0.00a | 4.00 ± 0.00b |
| Fresh weight (mg) | 261.00 ± 6.24a | 249.67 ± 2.88a | 236.67 ± 5.97ab | 214.33 ± 2.33b |
| Dry weight (mg) | 105.67 ± 3.34a | 96.67 ± 3.81a | 84.00 ± 2.16b | 48.33 ± 1.96c |
| Chlorophyll-a (mg/g FW) | 1.95 ± 0.04a | 2.02 ± 0.05a | 1.86 ± 0.04a | 0.91 ± 0.03b |
| Chlorophyll-b (mg/g FW) | 1.01 ± 0.03a | 0.84 ± 0.02b | 0.75 ± 0.02c | 0.39 ± 0.03d |
Mean values of the growth-promoting indexes in leaves were evaluated after 25days of the last inoculation. Values were analyzed and expressed as mean ± standard error (n= 6), and data sharing the different letters were significantly different (p< 0.05). HCH2-3, P. koreensis HCH2-3; FGD5-2, P. lurida FGD5-2; and MTD4-1, P. rhodesiae MTD4-1.