Table 2.
Categorization of variables used in logistic regression analysis for common bean rust epidemics in 9 districts (n = 78) during the 2022 main cropping season.
| Variables | Variable class | Prevalence | Sev | INC | ||
|---|---|---|---|---|---|---|
| > 25 | ≤ 25 | > 43 | ≤ 43 | |||
| Districts | Mareko | 100 | 6 | 3 | 7 | 2 |
| Meskan | 100 | 6 | 3 | 8 | 1 | |
| Sankura | 75 | 3 | 5 | 1 | 7 | |
| Lanfuro | 66.67 | 0 | 6 | 1 | 5 | |
| Duguna Fango | 100 | 9 | 1 | 9 | 1 | |
| Damot Woide | 100 | 3 | 3 | 6 | 0 | |
| Demba Gofa | 100 | 1 | 9 | 6 | 4 | |
| Oyida | 70 | 1 | 9 | 3 | 7 | |
| Boricha | 90 | 4 | 6 | 7 | 3 | |
| Altitude (m.a.s.l)a | 1500–2000 | 88.57 | 23 | 39 | 37 | 25 |
| > 2000 | 20.51 | 10 | 6 | 12 | 4 | |
| Variety | Local | 62.82 | 26 | 23 | 36 | 13 |
| Improved | 37.12 | 8 | 21 | 12 | 17 | |
| Fertilizer application | Not | 28.20 | 16 | 6 | 19 | 3 |
| Applied | 71.79 | 18 | 38 | 29 | 27 | |
| Weed managementb | Poor | 43.58 | 10 | 24 | 27 | 7 |
| Intermediate | 38.46 | 8 | 22 | 16 | 14 | |
| Sowing method | Broad casting | 29.48 | 21 | 12 | 27 | 6 |
| Row | 57.69 | 13 | 32 | 22 | 23 | |
| Cropping systemc | Sole | 47.43 | 29 | 8 | 32 | 5 |
| Intercrop | 52.56 | 5 | 36 | 16 | 25 | |
| Common bean growth staged | Pod formation | 29.48 | 10 | 13 | 15 | 8 |
| Pod filling | 34.62 | 13 | 14 | 16 | 11 | |
| Physiological maturity | 35.89 | 11 | 17 | 18 | 10 | |
| Plant population (m−2)e | Greater than 10 | 58.97 | 25 | 21 | 33 | 13 |
| Less than 10 | 42.02 | 9 | 23 | 15 | 17 | |
| Sowing date | June end–end of July | 55.12 | 23 | 20 | 28 | 15 |
| 1st August–end of August | 44.87 | 11 | 24 | 20 | 15 | |
| Survey site | Farmers field | 91.02 | 31 | 40 | 44 | 27 |
| FTC | 3.84 | 2 | 1 | 2 | 1 | |
| Trial | 5.12 | 1 | 3 | 2 | 2 | |
| Farm size (ha) | Less than 0.25 | 67.94 | 26 | 27 | 33 | 20 |
| Greater than 0.25 | 32.05 | 8 | 17 | 15 | 10 | |
Sev. = Severity; INC = Incidence.
aAltitude ranged from 1500 to 2000 and > 2000 masl are considered as mid- and highland areas.
bWeed management practices were recorded as poor (presence of high weed infestation), intermediate (few weeds present), and good (fields free of any weed infestation).
cCropping system refers to planting only common beans as sole cropping and sowing common beans simultaneously with other crops (sorghum and maize) as intercropping.
dGrowth stage referred to as pod formation when half of the plants in the quadrat are forming pod, pod filling is when plants in the quadrat start to pod development, and maturity is when the crop reaches its physiological maturity.
ePlant population was determined in 1 m−2 quadrat as highly dense (> 10 bean plants m−2) and sparsely populated (≤ 10 bean plants m−2).
FTC = Farmers Training Center.