agridat (version 1.23)

linder.wheat: Multi-environment trial of wheat in Switzerland

Description

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.

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")