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 variable	DF	Chocolate spot incidence, LRT				Chocolate spot PSI, LRT
		VEF		VEL		VEF		VEL
		DR		DR		DR		DR

Districts	7	51.7	<0.0001	47.8	<0 .0001	67.3	<0.0001	31.2	<0.0001
Planting date	2	18.8	<0.0001	9.6	0.0080	30.3	<0.0001	32.7	<0.0001
Previous crop	2	43.5	<0.0001	31.0	<0 .0001	67.3	<0.0001	17.4	0.0002
Altitude	2	4.4	0.1100	22.8	<0.0001	4.7	0.9700	12.2	0.0023
Cropping system	1	21.9	<0.0001	21.9	<0.0001	6.9	0.0085	6.9	0.0085
Growth stage	2	2.2	0.3400	7.6	0.0220	3.3	0.1952	0.2	0.8900
Weed management	2	17.2	0.0001	12.9	0.0016	36.3	<0.0001	15.7	0.0004
Soil type	2	0.0	1.0000	26.4	<0.0001	2.7	0.2595	3.3	0.1889
Fertilizer	1	8.0	0.0050	0.0	1.0000	2.6	0.1055	2.0	0.1549
Fungicides	1	0.0	1.0000	0.1	0.8081	0.7	0.3987	0.3	0.6090

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.

Advances in Agriculture

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

Table 4