Table 2 Prevalence, mean incidence, and severity of septoria tritici blotch on durum wheat under different independent variables
Variable | Variable class | Prevalence (%) | Septoria tritici blotch | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
Incidence | Severity | |||||||||
Mean | SD | Min | Max | Mean | SD | Min | Max | |||
District | Dessie Zuria | 40 | 16.7 | 21.9 | 0 | 50 | 2.5 | 3.6 | 0 | 9.9 |
Jama | 80 | 34.0 | 22.0 | 0 | 70 | 6.2 | 5.2 | 0 | 14.8 | |
Meket | 80 | 55.3 | 40.7 | 0 | 100 | 21.7 | 22.1 | 0 | 59.3 | |
Wadila | 87 | 42.7 | 27.1 | 0 | 90 | 14.2 | 12.7 | 0 | 39.5 | |
Woreilu | 80 | 38.0 | 26.2 | 0 | 80 | 12.3 | 13.2 | 0 | 49.4 | |
Altitude | ≤ 2700 masl | 75.6 | 35.36 | 25.40 | 0 | 80 | 8.35 | 9.72 | 0 | 49 |
> 2700 masl | 70.6 | 39.70 | 35.80 | 0 | 100 | 15.0 | 18.0 | 0 | 59 | |
Variety | Abesha | 100 | 50.0 | 12.6 | 30 | 60 | 11.0 | 4.7 | 3.7 | 17.3 |
Enat | 33 | 10.0 | 15.5 | 0 | 30 | 0.8 | 1.3 | 0 | 2.5 | |
Enzosh | 71 | 32.9 | 29.3 | 0 | 70 | 9.9 | 10.8 | 0 | 29.6 | |
Firno | 100 | 74.3 | 17.2 | 50 | 100 | 28.4 | 13.0 | 9.9 | 49.4 | |
Gojam gura | 33 | 10.0 | 17.3 | 0 | 30 | 0.8 | 1.4 | 0 | 2.5 | |
Gundile | 67 | 31.7 | 27.1 | 0 | 70 | 11.1 | 11.9 | 0 | 29.6 | |
Key sindie | 77 | 41.5 | 37.8 | 0 | 100 | 16.2 | 20.8 | 0 | 59.3 | |
Laste | 89 | 51.1 | 28.5 | 0 | 100 | 16.7 | 18.8 | 0 | 49.4 | |
Nech | 33 | 6.7 | 11.5 | 0 | 20 | 0.8 | 1.4 | 0 | 2.5 | |
Nech jiru | 70 | 28.0 | 24.4 | 0 | 60 | 5.6 | 5.8 | 0 | 14.8 | |
Tikur jiru | 80 | 34.0 | 26.1 | 0 | 70 | 5.2 | 4.5 | 0 | 12.3 | |
Planting date | August | 53 | 24.0 | 25.9 | 0 | 70 | 6.2 | 8.8 | 0 | 29.6 |
Early July | 84 | 43.2 | 28.7 | 0 | 100 | 13.7 | 14.5 | 0 | 49.4 | |
June | 92 | 66.7 | 32.0 | 0 | 100 | 27.1 | 21.0 | 0 | 59.3 | |
Late July | 67 | 28.7 | 23.9 | 0 | 60 | 4.6 | 5.3 | 0 | 17.3 | |
Mid-July | 71 | 27.9 | 26.4 | 0 | 70 | 7.6 | 8.6 | 0 | 29.6 | |
Previous crop | Barley | 50 | 17.5 | 20.5 | 0 | 50 | 2.6 | 37 | 0 | 9.9 |
Legume | 50 | 17.5 | 23.4 | 0 | 80 | 4.0 | 6.5 | 0 | 25.9 | |
Tef | 67 | 30.0 | 28.7 | 0 | 70 | 7.4 | 9.1 | 0 | 25.9 | |
Wheat | 92 | 53.7 | 27.0 | 0 | 100 | 18.0 | 16.7 | 0 | 59.3 | |
Growth stage | Early flower | 65 | 27.1 | 24.9 | 0 | 70 | 6.1 | 8.1 | 0 | 29.6 |
Flower | 100 | 30.0 | 30 | 30 | 7.4 | 7.4 | 7.40 | |||
Late milk | 37 | 17.5 | 24.3 | 0 | 50 | 3.1 | 4.3 | 0 | 9.9 | |
Milk | 82 | 44.3 | 31.3 | 0 | 100 | 14.6 | 16.2 | 0 | 59.3 | |
Plant population | High (> 210 plants m−2) | 100 | 60.0 | 23.2 | 20 | 100 | 18.9 | 17.2 | 2.5 | 59.3 |
Low (< 140 plants m−2) | 47 | 26.5 | 29.2 | 0 | 70 | 6.0 | 8.8 | 0 | 25.9 | |
Medium (141–210 m−2) | 66 | 32.3 | 32.2 | 0 | 100 | 10.7 | 16.0 | 0 | 59.3 | |
Weed population | High (> 61 weeds m−2) | 100 | 73.6 | 22.9 | 30 | 100 | 29.7 | 17.6 | 7.4 | 59.3 |
Low (< 40 weeds m−2) | 59 | 23.4 | 23.6 | 0 | 70 | 5.4 | 7.8 | 0 | 29.6 | |
Medium (41–60 weeds m−2) | 90 | 48.0 | 27.1 | 0 | 100 | 14.5 | 14.9 | 0 | 49.4 | |
Soil type | Red | 94 | 58.3 | 30.0 | 0 | 100 | 18.9 | 15.7 | 0 | 49.4 |
Gray | 79 | 44.2 | 31.5 | 0 | 100 | 17.3 | 18.8 | 0 | 59.3 | |
Black | 60 | 23.9 | 23.1 | 0 | 70 | 4.8 | 6.4 | 0 | 29.6 | |