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. 2024 Oct 9;14:23642. doi: 10.1038/s41598-024-72576-9

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.