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Table 1 Independent variables by disease contingency for logistic regression analysis of durum wheat septoria tritici blotch in the highlands of Wollo

From: Epidemiological factors of septoria tritici blotch (Zymoseptoria tritici) in durum wheat (Triticum turgidum) in the highlands of Wollo, Ethiopia

Variable Variable class Incidence Severity Variable Variable class Incidence Severity
≤ 50 > 50 ≤ 25 > 25 ≤50 >50 ≤25 > 25
District Dessie Zuria 15 0 15 0 Plant population High 12 13 16 9
Jama 13 2 15 0 Low 14 1 15 0
Meket 7 8 8 7 Medium 28 7 31 4
Wadila 9 6 11 4 Planting date August 13 2 14 1
Woreilu 10 5 13 2 Early July 13 6 14 5
Altitude ≤ 2700 masl 32 9 38 3 June 5 7 6 6
> 2700 masl 22 12 24 10 Late July 12 3 15 0
Variety Abesha 3 3 6 0 Mid-July 11 3 13 1
Enat 6 0 6 0 Previous crop Barley 8 0 8 0
Enzosh 5 2 6 1 Legume 18 2 19 1
Firno 1 6 2 5 Tef 7 2 8 1
Gojam 3 0 3 0 Wheat 21 17 27 11
Gundile 5 1 5 1 Weed population High (> 61 weeds m2) 2 9 4 7
Key sindie 9 4 9 4 Low (< 40 weeds m2) 39 5 41 3
Laste 6 3 7 2 Medium (41–60 weeds m2) 17 7 17 3
Nesh 3 0 3 0 Soil type Red 8 10 11 7
Nich jiru 9 1 10 0 Gray 12 7 14 5
Tikur jiru 4 1 5 0 Black 34 4 37 1
Growth stage Early flower 14 3 16 1       
Flower 1 0 1 0       
Late milk 8 0 8 0       
Milk 31 18 37 12