Multi-environment trial of wheat in Switzerland

Usage

data("linder.wheat")

Format

A data frame with 252 observations on the following 4 variables.

env: environment
block: block
gen: genotype
yield: yield, in 10 kg/ha

Details

An experiment of 9 varieties of wheat in 7 localities in Switzerland in 1960, RCB design.

Source

Arthur Linder (1960). Design and Analysis of Experiments, notes on lectures held during the fall semester 1963 at the Statistics Department, University of North Carolina, page 160. https://www.stat.ncsu.edu/information/library/mimeo.archive/ISMS_1964_398-A.pdf

References

None.

Examples


library(agridat)
data(linder.wheat)
dat <- linder.wheat

libs(gge)
dat <- transform(dat, eb=paste0(env,block))
m1 <- gge(dat, yield~gen*eb, env.group=env)
biplot(m1, main="linder.wheat")