Association of Chocolate Spot and Faba Bean Rust Epidemics with Climate Change Resilient Cultural Practices in Bale Highlands, Ethiopia
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 variable
Rust incidence, LRT
Rust PSI, LRT
DF
VEF
VEL
VEF
VEL
DR
DR
DR
DR
Districts
7
117.8
<0.0001
69.5
<0.0001
114.1
<0.0001
19.2
0.0067
Planting date
2
34.9
<0.0001
3.1
0.2192
104.9
< 0.0001
17.5
0.0002
Previous crop
2
12.6
0.0018
2.8
0.2500
34.9
< 0.0001
0.0
1.0000
Altitude
2
0.7
0.7110
1.5
0.4771
4.5
0.0100
0.5
0.7800
Cropping system
1
3.2
0.0762
0.4
0.5200
0.4
0.5600
0.2
0.7100
Growth stage
2
17.3
0.0002
2.3
0.3180
52.5
<0.0001
0.8
0.6800
Weed management
2
51.4
<0.0001
23.4
<0.0001
123.2
<0.0001
1.1
0.5900
Soil type
2
6.1
0.0481
3.9
0.1400
5.5
0.0650
0.0
1.0000
Fertilizer
1
0.1
0.8150
0.01
0.9100
0.1
0.8140
0.2
0.7100
Fungicides
1
2.6
0.1047
0.00
1.0000
1.2
0.2750
3.7
0.0530
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.
