pacheco.soybean: Multi-environment trial of soybean in Brazil.

Description Format Details Source Examples

Description

Yields of 18 soybean genotypes at 11 environments in Brazil.

Format

gen

genotype, 18 levels

env

environment, 11 levels

yield

yield, kg/ha

Details

In each environment was used an RCB design with 3 reps. The means of the reps are shown here.

Used with permission of Robert Pacheco.

Source

R M Pacheco, J B Duarte, R Vencovsky, J B Pinheiro, A B Oliveira, (2005). Use of supplementary genotypes in AMMI analysis. Theor Appl Genet, 110, 812-818. https://doi.org/10.1007/s00122-004-1822-6

Examples

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## Not run: 

library(agridat)
data(pacheco.soybean)
dat <- pacheco.soybean

# AMMI biplot similar to Fig 2 of Pacheco et al.
libs(agricolae)
m1 <- with(dat, AMMI(env, gen, REP=1, yield))
bip <- m1$biplot[,1:3]
# Fig 1 of Pacheco et al.
with(bip, plot(yield, PC1, cex=0.0,
               text(yield,PC1,labels=row.names(bip), col="blue"),
               xlim=c(1000,3000),main="pacheco.soybean - AMMI biplot",frame=TRUE))
with(bip[19:29,], points(yield, PC1, cex=0.0,
                         text(yield,PC1,labels=row.names(bip[19:29,]),
                              col="darkgreen")))


## End(Not run)

agridat documentation built on Dec. 20, 2021, 9:07 a.m.