pacheco.soybean {agridat} | R Documentation |
Yields of 18 soybean genotypes at 11 environments in Brazil.
gen
genotype, 18 levels
env
environment, 11 levels
yield
yield, kg/ha
In each environment was used an RCB design with 3 reps. The means of the reps are shown here.
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. http://doi.org/10.1007/s00122-004-1822-6
Used with permission of Robert Pacheco.
data(pacheco.soybean) dat <- pacheco.soybean # AMMI biplot similar to Fig 2 of Pacheco et al. if(require(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"))) }