Table 2 Effects of pH on IAA production
From: Plant growth promotion using microbial IAA producers in conjunction with azolla: a novel approach
Culture samples | pH range | Concentration of IAA (in µg/ml) | |||
|---|---|---|---|---|---|
24 h | 48 h | 72 h | 96 h | ||
F1 | 5 | 0.9 (±0.1) | 3.6 (±0.4) | 1.4 (±0.2) | 1.1 (±0.1) |
7 | 7.3 ( 0.4) | 10.1 (±0.5) | 0.9 (±0.1) | 8.1 (±0.4) | |
9 | 15.2 (±0.8) | 13.1 (±0.5) | 12.6 (±0.5) | 0.9 (±0.1) | |
11 | 0.5 (±0.1) | 5 (±0.4) | 0.9 (±0.1) | 1 (±0.1) | |
G2 | 5 | 0.6 (±0.1) | 1.1 (±0.1) | 1.1 (±0.1) | 1.1 (±0.1) |
7 | 8.6 (±0.4) | 12 (±0.5) | 14.8 (±0.6) | 14.6 (±0.6) | |
9 | 10.5 (±0.5) | 17.1 (±0.6) | 19.5 (±0.8) | 18.2 (±0.8) | |
11 | 1.3 (±0.1) | 5.3 (±0.4) | 17.5 (±0.8) | 14.8 (±0.6) | |
FC | 5 | 0.7 (±0.1) | 1.9 (±0.2) | 6.6 (±0.4) | 6.7 (±0.4) |
7 | 4.6 (±0.4) | 7.9 (±0.4) | 7.9 (±0.4) | 6.8 (±0.4) | |
9 | 9.6 (±0.4) | 15.9 (±0.8) | 13.5 (±0.8) | 8.7 (±0.4) | |
11 | 0.9 (±0.1) | 8.2 (±0.4) | 15.1 (±0.8) | 14.5 (±0.6) | |
GC | 5 | 1.1 (±0.1) | 0.8 (±0.1) | 1.5 (±0.1) | 3.6 (±0.4) |
7 | 1 (±0.1) | 3.4 (±0.4) | 7 (±0.4) | 6.7 (±0.4) | |
9 | 6.7 (±0.4) | 9.9 (±0.4) | 9.4 (±0.4) | 6.2 (±0.4) | |
11 | 1.1 (±0.1) | 6.5 (±0.4) | 13.1 (±0.8) | 12.3 (±0.8) | |