Skip to contents

Reference wheat data from Brazil (BRILHANTE cultivar, Sertaozinho site)

Source: R/dataBrazil_docs.R
reference_brazil.Rd

A dataset with experimental reference observations for the BRILHANTE variety grown in Sertaozinho, Brazil. These data come from EPAMIG trials and were processed in `data-raw/build_referenceBrazil.R`.

Usage

reference_brazil

Format

A data frame with one row per planting period × year, containing:

year

integer. Growing season year.

variety

character. Cultivar name (always `"BRILHANTE"`).

planting_period

integer. Planting period index.

Disease

numeric. Disease severity (DHS), if available; otherwise `NA`.

yieldActual

numeric. Yield (kg/ha), if available; otherwise `NA`.

site

character. Site name (always `"Sertaozinho"`).

doy

numeric. Day of year of the event (heading or harvest).

fint

numeric. Indicator of event type: 1 for heading (no yield/disease), 0.1 for harvest (with yield and disease observations).

Source

Santos, G.B. dos, Coelho, M.A.O., & Del Ponte, E.M. (2023). Critical-point yield loss models based on incidence and severity of wheat head blast epidemics in the Brazilian Cerrado. *European Journal of Plant Pathology, 165*, 421–431. doi:10.1007/s10658-022-02614-7

Details

The dataset includes two kinds of rows:

  • Heading observations (fint = 1), with only doy filled.

  • Harvest observations (fint = 0.1), with yieldActual and Disease values from trial data.

Examples

data(reference_brazil)
head(reference_brazil)
#> # A tibble: 6 × 8
#>    year variety   planting_period Disease yieldActual site          doy  fint
#>   <int> <chr>               <int>   <dbl>       <dbl> <chr>       <dbl> <dbl>
#> 1  2013 BRILHANTE               1      NA          NA Sertaozinho    92     1
#> 2  2013 BRILHANTE               2      NA          NA Sertaozinho   100     1
#> 3  2013 BRILHANTE               3      NA          NA Sertaozinho   107     1
#> 4  2013 BRILHANTE               4      NA          NA Sertaozinho   116     1
#> 5  2013 BRILHANTE               5      NA          NA Sertaozinho   124     1
#> 6  2013 BRILHANTE               6      NA          NA Sertaozinho   131     1