Orobanche, commonly known as broomrape, is a genus of parasitic plants with chlorophyll that grow on the roots of flowering plants. Batches of seeds of two varieties of the plant were were brushed onto a plate of diluted extract of bean or cucumber, and the number germinating were recorded.
data(orobanche)This data frame contains the following columns:
Number germinated
Number of seeds
Slide number
Host type
Variety name
Collett, D. (1991) Modelling Binary Data, London: Chapman and Hall, Chapter 6.