https://github.com/cran/agricolae
Tip revision: d7f661595f7e5f22ed8d699e34e244ea9a193787 authored by Felipe de Mendiburu on 08 April 2013, 00:00:00 UTC
version 1.1-4
version 1.1-4
Tip revision: d7f6615
sweetpotato.Rd
\name{sweetpotato}
\alias{sweetpotato}
\docType{data}
\title{ 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.
\describe{
\item{\code{virus}}{a factor with levels \code{cc} \code{fc} \code{ff} \code{oo}}
\item{\code{yield}}{a numeric vector}
}
}
\source{
Experimental field.
}
\references{
International Potato Center. CIP - Lima Peru
}
\examples{
library(agricolae)
data(sweetpotato)
str(sweetpotato)
}
\keyword{datasets}