Table 9: Analysis of deviance, natural logarithms of odds ratio, and standard error of added variables in a reduced model analyzing faba bean rust percentage severity index (PSI).

Added variableResidual devianceDF LRTVariable classEstimateSEOdds Ratio
DR

Intercept329.4-4.461.310.01

District215.37114.1<0.0001Agarfa2.870.8117.64
Dinsho3.300.7227.11
Gasera5.011.54149.90
Ginir1.021.162.77
Goba2.600.8813.50
Gololcha1.601.514.95
Goro2.261.769.58
Sinana1

Previous crop183.4231.9<0.0001Cereal1.020.732.77
Legume1.640.965.16
Vegetable1

Growth stage174.9428.410.0149Flowering0.420.701.52
Late podding0.890.822.44
Podding1

Weed management129.0245.1<0.0001Good-2.140.720.12
Intermediate-1.970.570.14
Poor1

Planting date107.8217.70.0001July2.930.9918.72
August2.120.878.30
September1

DF, degrees of freedom; LRT, likelihood ratio test; DR, deviance reduction; Pr, probability of χ2 value exceeding the deviance reduction; , reference group. Variables are added into the model in order of presentation in table. Unexplained variations after fitting the model. Estimates are from the model with all independent variables added. Standard error of the estimate. Exponentiating the estimates.