Research Article
Modelling Soil Water Retention for Weed Seed Germination Sensitivity to Water Potential
Table 5
Mean water content for water potential intervals based on weed seed germination sensitivity to water potential.
| | Mean water content | | Water potential interval (MPa) | Main effect | Full | A | B | C | D | | −0.01 to −1.5 | −0.01 to −0.1 | −0.1 to −0.5 | −0.5 to −1.0 | −1.0 to −1.5 | | (cm3/cm3) |
| Hillslope | | | | | | SW | 0.158 | 0.202 | 0.132 | 0.108 | 0.098 | NE | 0.150 | 0.190 | 0.126 | 0.102 | 0.092 | Hillslope position | | | | | | Summit | 0.124b | 0.164b | 0.099b | 0.080b | 0.072b | Backslope | 0.141b | 0.185b | 0.114b | 0.091b | 0.082b | Toeslope | 0.196a | 0.239a | 0.175a | 0.145a | 0.132a | Model | | | | | | CA | 0.153c | 0.202a | 0.125d | 0.095c | 0.083c | BC | 0.153bc | 0.198b | 0.126c | 0.100b | 0.090b | VG5 | 0.153bc | 0.199b | 0.126c | 0.100b | 0.089b | VG4 | 0.153b | 0.198b | 0.126c | 0.101b | 0.091b | TA | 0.156a | 0.189d | 0.137a | 0.118a | 0.109a | RU | 0.156a | 0.191c | 0.135b | 0.116a | 0.108a | Source of variation | | | | | | Hillslope () | 0.216 | 0.189 | 0.313 | 0.243 | 0.222 | Position () | <.001 | <.001 | <.001 | <.001 | <.001 | | 0.360 | 0.414 | 0.161 | 0.095 | 0.078 | Model () | <.001 | <.001 | <.001 | <.001 | <.001 | | 0.001 | <.001 | <.001 | 0.003 | 0.013 | | <.001 | 0.010 | 0.429 | <.001 | <.001 | | <.001 | 0.431 | 0.682 | 0.411 | 0.309 |
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Means within a column and main effect, followed by different letters are significantly different at according to Fisher’s protected LSD.
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