Uniformity trial of tomato — strickland.tomato.uniformity • agridat

Uniformity trial of tomato in Australia

data("strickland.tomato.uniformity")

Format

A data frame with 180 observations on the following 3 variables.

row: row
col: column
yield: yield per plot, pounds

Details

Tomato plants were placed 2 feet apart in rows 4 feet apart. Each plot contained 6 plants.

Field dimensions are not given, but the most likely design is:

Field length: 6 plots * 6 plants * 2 feet = 72 feet

Field width: 30 plots * 4 feet = 120 feet

Source

A. G. Strickland (1935). Error in horticultural experiments. Journal of Agriculture, Victoria, 33, 408-416. https://handle.slv.vic.gov.au/10381/386642

References

None

Examples

# \dontrun{

library(agridat)
  data(strickland.tomato.uniformity)
  dat <- strickland.tomato.uniformity

  mean(dat$yield)
#> [1] 50.47222
  sd(dat$yield)
#> [1] 10.49843

  libs(desplot)
  desplot(dat, yield ~ col*row,
          main="strickland.tomato.uniformity",
          flip=TRUE, aspect=(6*12)/(30*4))
# }