Table 7: Independent variables used in logistic regression modeling of faba bean rust incidence and percentage severity index (PSI) and likelihood ratio test (LRT) for ten variables entered first and last into a model.

Independent variableRust incidence, LRTRust PSI, LRT
DF VEF VEL VEF VEL
DRDRDRDR

Districts7117.8<0.000169.5<0.0001114.1<0.000119.20.0067
Planting date234.9<0.00013.10.2192104.9< 0.000117.50.0002
Previous crop212.60.00182.80.250034.9< 0.00010.01.0000
Altitude20.70.71101.50.47714.50.01000.50.7800
Cropping system13.20.07620.40.52000.40.56000.20.7100
Growth stage217.30.00022.30.318052.5<0.00010.80.6800
Weed management251.4<0.000123.4<0.0001123.2<0.00011.10.5900
Soil type26.10.04813.90.14005.50.06500.01.0000
Fertilizer10.10.81500.010.91000.10.81400.20.7100
Fungicides12.60.10470.001.00001.20.27503.70.0530

DF, degrees of freedom; LRT, likelihood ratio test; DR, deviance reduction; Pr, probability of χ2 value exceeding the deviance reduction; VEF, variable entered first into model; VEL, variable entered last into model.