The data set
aphids is a data frame with 51 rows and
2 columns. The rows correspond to 51 independent experiments
in which varying numbers of aphids were released in a flight
chamber containing 12 infected and 69 healthy tobacco plants.
The resulting number of infected plants (amongst those previously
healthy) was recorded.
The data frame
aphids contains the following columns:
The number of aphids released in the flight chamber in each instance.
The resulting number (out of a possible 69) of infected plants
After 24 hours from the time that the aphids were released, the flight chamber was fumigated to kill the aphids, and the previously healthy plants were moved to a greenhouse and monitored to detect symptoms of infection. The number of plants displaying such symptoms was recorded.
Rolf Turner email@example.com
These data appear courtesy of Gilles Boiteau and George Tai of the Potato Research Centre, Agriculture and Agri-Food Canada, Fredericton, New Brunswick. Any published work using these data should cite the paper given in the References.
Boiteau, G., M. Singh, R. P. Singh, G. C. C. Tai, and T. R. Turner (1998). Rate of spread of PVY-n by alate Myzus persicae (Sulzer) from infected to healthy plants under laboratory conditions. Potato Research, vol. 41, pp. 335 – 344.
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