Table 3.
Results from one-way ANOVA on the effect of arbuscular mycorrhizal fungi (AMF) on the shoot and root dry weight biomass and root: shoot ratio of 75 and 30 day-old rice plants from a field (Exp-2) and a greenhouse experiment (PB1) in 2013.
| Treatments | Shoot DW (g) | Root DW (g) | Root DW/ Shoot DW |
|---|---|---|---|
| Field 2013 (Exp-2) | Mean ± SE | Mean ± SE | Mean ± SE |
| Fungicide (F) | 2.17 ± 0.38b | 1.02 ± 0.08b | 0.50 ± 0.07a |
| Nonmycorrhizal (NM) | 2.65 ± 0.48b | 1.19 ± 0.27a | 0.45 ± 0.04a |
| Mycorrhizal (M) | 3.94 ± 0.36a | 1.25 ± 0.21a | 0.34 ± 0.08a |
| (32.7%)∗ | (4.8%)∗ | (-32.4%)∗ | |
| F2,6 | 12.15 | 0.38 | 2.15 |
| P-value | 0.008 | 0.699 | 0.198 |
| GH 2013 (PB1) | |||
| Nonmycorrhizal (NM) | 0.88 ± 0.05b | 0.51 ± 0.05a | 0.57 ± 0.05a |
| Mycorrhizal (M) | 1.09 ± 0.06a | 0.60 ± 0.04a | 0.56 ± 0.04a |
| (19.3%)∗ | (15.0%)∗ | (-1.8%)∗ | |
| F1,11 | 6.53 | 2.46 | 0.02 |
| P-value | 0.027 | 0.145 | 0.901 |
DW = Dry Weight. Mean values followed by different letters within columns indicate a significant difference among treatments by Least Significant Difference mean comparisons (P < 0.05; LSD). Significant P-values are in bold. 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. ∗The relative change (%) in root, shoot and ratio was calculated by dividing the difference of AMF and non-AMF by AMF treatment.