Table 2.
Percentage (%) of root fragments colonized by arbuscular mycorrhizal fungi (AMF) in rice plants.
| Treatments | Root fragments colonized by AMF (%) |
||
|---|---|---|---|
| Field 2013 (Mean of 4 samples each) | Exp-2 (41 dai1) Mean ± SE | Exp-2 (64 dai) Mean ± SE | Exp-3 (32 dai) Mean ± SE |
| Fungicide (F) | 1.5 ± 0.95b | 0.5 ± 0.50b | 0.5 ± 0.50b |
| Nonmycorrhizal (NM) | 4 ± 1.83ab | 1.5 ± 0.95b | 3 ± 1.29b |
| Mycorrhizal (M) | 9 ± 2.08b | 6 ± 2.16a | 7 ± 1.29a |
| F2,9 | 5.10 | 4.41 | 9.00 |
| P-value | 0.033 | 0.046 | 0.007 |
| Greenhouse 2013 (Mean of 5 samples each) | RWW2 (31 dai) Mean ± SE | FAW2 Mean ± SE | FAW3/RWW1/ ShB1 (36 dai) Mean ± SE |
| Nonmycorrhizal (NM) | 0.8 ± 0.49b | 0.4 ± 0.40b | 0 ± 0b |
| Mycorrhizal (M) | 8.4 ± 2.48a | 11.6 ± 1.72a | 13.6 ± 1.72a |
| F1,8 | 9.03 | 40.20 | 62.49 |
| P-value | 0.017 | 0.0002 | < 0.0001 |
The percentage of colonized root fragments was determined from two field experiments (Experiment-2, Experiment-3), and from five greenhouse experiments (FAW2, RWW2, and from the combined experiments FAW3/RWW1/ShB1). Means ± standard errors are shown (n = 4 or 5 for field and greenhouse, respectively). Different letters indicate significant differences between mycorrhizal levels within each mycorrhizal treatments according to Least Significant Difference mean comparisons (P < 0.05; LSD). The F, NM, and M refer to AMF treatments of F: rice seeds + fungicides + sterilized AMF, NM: rice seeds + sterilized AMF, and M: rice seeds + live AMF. 1dai, days after inoculation.