Plot-level reference observations from Ethiopia used for model calibration/validation and retrospective analyses.
Format
A data frame with the following variables:
- site
Character. Site identifier (e.g., `"Hossana"`, `"Agecha"`).
- variety
Character. Wheat variety name (e.g., `"Alidoro"`).
- fungicide
Factor. Fungicide treatment (`"no"`, `"2"`, `"3"`, `"7"`).
- year
Integer. Calendar year of observation.
- DOY
Integer. Day of year (1–366).
- Disease
Numeric. Observed disease severity (percent).
- YieldActual
Numeric. Actual measured yield (kg/ha).
- YieldAttainable
Numeric. Attainable yield (kg/ha) under control, fixed at 6000 kg ha-1.
Source
Trial data compiled from https://core.ac.uk/download/pdf/234661852.pdf.
Details
Data digitized from fungicide trial results in Ethiopia. `YieldActual` and `YieldAttainable` values may be `NA` where not reported.
Examples
data(reference_ethiopia)
head(reference_ethiopia)
#> site variety fungicide year DOY Disease YieldActual YieldAttainable
#> 1 Hossana Alidoro no 2012 201 0.00 NA NA
#> 2 Hossana Alidoro no 2012 246 0.78 NA NA
#> 3 Hossana Alidoro no 2012 253 2.63 NA NA
#> 4 Hossana Alidoro no 2012 260 5.60 NA NA
#> 5 Hossana Alidoro no 2012 267 11.81 NA NA
#> 6 Hossana Alidoro no 2012 274 22.51 NA NA