Advances in Agriculture / 2018 / Article / Tab 4

Research Article

Association of Chocolate Spot and Faba Bean Rust Epidemics with Climate Change Resilient Cultural Practices in Bale Highlands, Ethiopia

Table 4

Independent variables used in logistic regression modeling of chocolate spot incidence and percentage severity index (PSI) and likelihood ratio test (LRT) for ten variables entered first and last into a model.

Independent variableDFChocolate spot incidence, LRTChocolate spot PSI, LRT

Districts751.7<0.000147.8<0 .000167.3<0.000131.2<0.0001
Planting date218.8<0.00019.60.008030.3<0.000132.7<0.0001
Previous crop243.5<0.000131.0<0 .000167.3<0.000117.40.0002
Cropping system121.9<0.000121.9<0.00016.90.00856.90.0085
Growth stage22.20.34007.60.02203.30.19520.20.8900
Weed management217.20.000112.90.001636.3<0.000115.70.0004
Soil type20.01.000026.4<0.00012.70.25953.30.1889

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.

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