Table 3.
Effect of B. subtilis PM32 on length of shoot and root, number of stems, fresh weight, relative water contents, electrolyte leakage chlorophyll a, b, and carotenoids content of potato plants under green house
| Treatments | Shoot length (cm) | Root length (cm) | No of stems | Fresh weight (gram) | Relative water content (%) | Electrolyte leakage (%) | Chlorophyll content | ||
|---|---|---|---|---|---|---|---|---|---|
| Chlorophyll a (mg/g) | Chlorophyll b (mg/g) | Carotenoids (mg/g) | |||||||
| Control | 61.01 ± 0.81b | 3.77 ± 0.52b | 2.66 ± 2.39b | 56.60 ± 0.47c | 51.36 ± 1.06c | 41.40 ± 2.79b | 0.43 ± 0.01c | 0.65 ± 0.02b | 3.93 ± 0.12c |
| T1 | 76.66 ± 0.47a | 7.53 ± 0.41a | 4.33 ± 1.81a | 76.13 ± 0.47a | 62.23 ± 2.00a | 35.20 ± 0.91c | 0.72 ± 0.03a | 0.84 ± 0.02a | 4.66 ± 0.20a |
| T2 | 69.01 ± 1.63ab | 6.66 ± 0.47a | 3.66 ± 2.09a | 56.96 ± 0.47c | 59.4 ± 1.47ab | 33.80 ± 1.07c | 0.55 ± 0.03b | 0.67 ± 0.02b | 4.26 ± 0.08b |
| T3 | 51.80 ± 1.88c | 2.66 ± 0.30c | 1.66 ± 0.94c | 38.66 ± 0.47d | 46.83 ± 1.16d | 57.66 ± 3.29a | 0.33 ± 0.02d | 0.33 ± 0.03c | 2.83 ± 0.12d |
| T4 | 70.84 ± 5.51a | 6.99 ± 0.24a | 4.01 ± 1.94a | 65.99 ± 0.00b | 58.63 ± 1.38b | 33.40 ± 1.44c | 0.60 ± 0.01b | 0.83 ± 0.04a | 4.77 ± 0.08a |
Effects of different treatments on growth of potato plants in green house. Control= uninoculated; T1 = B. subtilis PM32 inoculation; T2 = B. subtilis PM32 and R. solani inoculation; T3 = R. solani inoculation; T4 = R. solani + Fungicide (KOCIDE 3000). The treatments exhibit dissimilar letters within rows represent significance at P ≤ 0.05 level