Table 6.
Plant growth promotion in A. abyssinica treated with different PGPRs individually and consortium under control and drought stress conditions.
Treatment | SH (cm)/pot | RL (cm)/pot | No. of leaves/pot | SDW (g)/pot | RDW (g)/pot |
---|---|---|---|---|---|
Control | 38.3 ± 2.9i | 10.0 ± 2.6i-k | 14.0 ± 2.6f-i | 0.9 ± 0.2jk | 0.12 ± 0.01jk |
Control + D | 31.7 ± 2.1j | 7.0 ± 2.6k | 9.3 ± 1.5j | 0.6 ± 0.1k | 0.1 ± 0.02k |
BS-27 | 50.7 ± 0.6d | 14.0 ± 2f-h | 17.3 ± 1.2c-e | 1.9 ± 0.4b-e | 0.4 ± 0.06d-i |
BS-27 +D | 43.3 ± 1.5f-h | 11.0 ± 1h-j | 11.0 ± 2ij | 1.5 ± 0.2e-i | 0.3 ± 0.04g-j |
FB-50 | 52.0 ± 2.6d | 17.7 ± 1.5b-e | 18.0 ± 3b-e | 1.9 ± 0.3b-e | 0.4 ± 0.11d-i |
FB-50 +D | 46.3 ± 3.1ef | 11.7 ± 2.1h-j | 15.7 ± 2.5d-g | 1.7 ± 0.1g-j | 0.5 ± 0.05g-i |
RS-65 | 46.7 ± 3.2ef | 16.0 ± 1d-f | 21.3 ± 3.1ab | 1.5 ± 0.4e-i | 0.3 ± 0.09e-i |
RS-65 +D | 39.3 ± 2.5hi | 11.0 ± 2h-j | 18.0 ± 2b-e | 1.1 ± 0.2ij | 0.2 ± 0.05j-k |
FB-49 | 61.0 ± 1.7b | 20.3 ± 1.5ab | 21.3 ± 2.1ab | 2.2 ± 0.4bc | 0.60.03bc |
FB-49 +D | 51.7 ± 1.5d | 18.7 ± 1.5b-d | 17.7 ± 1.5c-e | 1.8 ± 0.1d-h | 0.55 ± 0.07c-f |
RS-72 | 51.7 ± 2.1d | 16.7 ± 1.5c-f | 18.3 ± 2.5b-d | 2.1 ± 0.4b-d | 0.5 ± 0.12cd |
RS-72 +D | 44.0 ± 2fg | 11.3 ± 1.5h-j | 13.7 ± 1.5f-i | 1.3 ± 0.1g-i | 0.4 ± 0.1e-h |
BS-19 | 48.3 ± 1.5de | 14.0 ± 1f-h | 18.7 ± 3.1b-d | 2.2 ± 0.3bc | 0.5 ± 0.14c-e |
BS-19 +D | 40.3 ± 2.5g-i | 10.3 ± 1.5ij | 13.0 ± 2j-i | 1.6 ± 0.3d-h | 0.4 ± 0.04d-f |
RS-79 | 43.3 ± 2.5f-h | 12.7 ± 2.1g-i | 15.3 ± 1.5d-g | 1.9 ± 0.3c-f | 0.4 ± 0.11d-h |
RS-79 +D | 39.3 ± 1.5hi | 8.7 ± 1.5jk | 11.3 ± 1.5i-j | 1.4 ± 0.2f-i | 0.3 ± 0.08g-j |
PS-16 | 46.0 ± 2ef | 11.0 ± 1h-j | 20.3 ± 2.5bc | 1.8 ± 0.5c-f | 0.3 ± 0.12g-i |
PS-16 +D | 39.7 ± 2.5hi | 8.4 ± 2.1jk | 15.7 ± 2.5d-g | 1.4 ± 0.2g-i | 0.2 ± 0.06g-j |
BS-45 | 51.0 ± 2d | 11.3 ± 1.5h-j | 14.7 ± 1.5e-h | 2.4 ± 0.2b | 0.4 ± 0.15d-i |
BS-45 +D | 42.7 ± 2.1f-h | 9.3 ± 1.5i-k | 11.0 ± 1ij | 1.4 ± 0.1g-i | 0.2 ± 0.08h-k |
PS-2 | 41.3 ± 1.5g-i | 10.0 ± 1i-k | 18.3 ± 1.5b-d | 1.4 ± 0.1g-i | 0.2 ± 0.07g-j |
PS-2 +D | 38.7 ± 2.1i | 8.3 ± 1.5jk | 11.7 ± 2.1h-j | 1.2 ± 0.1h-i | 0.2 ± 0.02i-k |
Consortia | 70.3 ± 1.5a | 22.3 ± 2.1a | 23.7 ± 1.5a | 2.9 ± 0.3a | 0.9 ± 0.12a |
Consortia +D | 57.3 ± 1.5c | 19.3 ± 2.5bc | 16.7 ± 2.8d-f | 2.1 ± 0.2b-d | 0.8 ± 0.07ab |
Means with the same letter down the column are not significantly different at (p ≤ 0.05) by using DMRT. Mean ± SD (n = 3); D represents drought. Consortia = FB-50 + BS-27 + BS-19 + FB-49. SH = shoot height, RL = root length, SDW = shoot dry weight, RDW = root dry weight.