strickland.tomato.uniformity {agridat} | R Documentation

## Uniformity trial of tomato

### Description

Uniformity trial of tomato in Australia

### Usage

    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. http://handle.slv.vic.gov.au/10381/386642

### References

None

### Examples

    ## Not run:
      data(strickland.tomato.uniformity)
      dat <- strickland.tomato.uniformity

      mean(dat$yield)
      sd(dat$yield)

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

    ## End(Not run)

[Package agridat version 1.16 Index]