aphids {mixreg} | R Documentation |
The aphids
data frame has 51 rows and 2 columns.
These 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 was recorded.
data(aphids)
This data frame contains the following columns:
n.aphids
n.inf
After 24 hours, 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 symptons was recorded.
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.