sweetpotato {agricolae} | R Documentation |
Data of sweetpotato yield
Description
The data correspond to an experiment with costanero sweetpotato made at the locality of the Tacna department, southern Peru. The effect of two viruses (Spfmv and Spcsv) was studied. The treatments were the following: CC (Spcsv) = Sweetpotato chlorotic dwarf, FF (Spfmv) = Feathery mottle, FC (Spfmv y Spcsv) = Viral complex and OO (witness) healthy plants. In each plot, 50 sweetpotato plants were sown and 12 plots were employed. Each treatment was made with 3 repetitions and at the end of the experiment the total weight in kilograms was evaluated. The virus transmission was made in the cuttings and these were sown in the field.
Usage
data(sweetpotato)
Format
A data frame with 12 observations on the following 2 variables.
virus
a factor with levels
cc
fc
ff
oo
yield
a numeric vector
Source
Experimental field.
References
International Potato Center. CIP - Lima Peru
Examples
library(agricolae)
data(sweetpotato)
str(sweetpotato)