The alfalfa
data frame has 25 rows and 4 columns. Data comes from an
experiment to test the effects of seed inoculum, irrigation and shade on
alfalfa yield. A latin square design has been used.
This data frame contains the following columns:
Distance of location from tree line divided into 5 shade areas
Irrigation effect divided into 5 levels
Four types of seed incolum, A-D with E as control.
Dry matter yield of alfalfa