li.millet.uniformity {agridat} | R Documentation

## Uniformity trial of millet

### Description

Uniformity trial of millet at China in 1934.

### Format

A data frame with 600 observations on the following 3 variables.

`row`

  row

`col`

  column

`yield`

  yield (grams)

### Details

Crop date estimated to be 1934.

Field was 100 ft x 100 ft. Plots were 15 feet long by 1 foot wide.

Field width: 100 plots * 1 foot = 100 feet

Field length: 6 plots * 15 feet = 100 feet

Li found the most efficient use of land was obtained with plats 15 feet long and two rowss wide. Also satisfactory would be one row 30 feet long.

### Source

Li, HW and Meng, CJ and Liu, TN. 1936. Field Results in a Millet Breeding Experiment. Agronomy Journal, 28, 1-15. Table 1. http://doi.org/10.2134/agronj1936.00021962002800010001x

### Examples

    ## Not run:

      data(li.millet.uniformity)
      dat <- li.millet.uniformity

      mean(dat$yield) # matches Li et al.

      require(desplot)
      desplot(yield~col*row, dat,
              aspect=100/100, # true aspect
              main="li.millet.uniformity")

    ## End(Not run)

[Package agridat version 1.16 Index]