Allard (1966) sought to quantify variation in the yield in wheat grasses.
Five wheat crosses were selected from a breeding program and were grown at
four randomly selected locations where the wheat would be grown commercially.
At each location crosses (families) were randomly assigned to particular
sections of fields, i.e. at each location a one way randomized block design
was conducted.
Usage
data(wheat)
Arguments
source
Littell, R. C., Milliken, G. A., Stroup, W. W., Wolfinger, R. D., and O. Schabenberger.
2006. SAS for mixed models 2nd ed. SAS press.