yan.winterwheat: Multi-environment trial of winter wheat in Ontario
Description
Yield of 18 varieties of winter wheat grown at 9 environments in
Ontario in 1993.
Arguments
Format
A data frame with 162 observations on the following 3 variables.
gen
genotype
env
environment
yield
yield in metric tons per hectare
Details
The yield is the mean of several reps, measured in metric tons per hectare.
This data has often been used to illustrate GGE biplots.
References
Weikai Yan and Manjit S. Kang and Baoluo Ma and Sheila Woods, 2007,
GGE Biplot vs. AMMI Analysis of Genotype-by-Environment Data,
Crop Science, 2007, 47, 641--653.
http://doi.org/10.2135/cropsci2006.06.0374