Cica2 {BSagri} | R Documentation |
Data of a field trial concerning the impact of a genetically modified variety on the abundance of Planthoppers and Leafhoppers. The trial was designed as a randomized complete block design with 8 blocks (Row). In each block, three treatments were randomized: a conventional variety treated with insecticides (Insecticide), a genetically modified variety (GM), and the near-isogenic line (Iso) the to genetically modified line. These data originate from the second year of the trial in Cica1.
data(Cica2)
A data frame with 24 observations on the following 8 variables.
Field
1
2
, separating the two major sites of the trial. On field 1, the blocks 1-5 were situated, on field 2, blocks 6-8 were situated.Row
R1
R2
R3
R4
R5
R6
R7
R8
Year
Treatment
GM
,
the conventional variety treated with insecticides Insecticide
,
and the variety that was near-isogenic to the GM variety Iso
Au_Bonitur
Zs_sweep_netting
Zs_yellow_traps
Zs_stick_traps
...
See Cica1
for data of the same trial a year earlier
data(Cica2) # A comparison of the treatments: dev.new(width=12,height=4) layout(matrix(1:4,ncol=4)) ylim<-range(Cica2[,c("Au_Bonitur","Zs_sweep_netting", "Zs_yellow_traps", "Zs_stick_traps")]) boxplot(Au_Bonitur ~ Treatment, data=Cica2, main= "Aucherrhyncha, visual assessment", ylim=ylim, horizontal=TRUE, las=1) boxplot(Zs_sweep_netting ~ Treatment, data=Cica2, main="Z.scutellaris, sweep netting", ylim=ylim, horizontal=TRUE, las=1) boxplot(Zs_yellow_traps ~ Treatment, data=Cica2, main="Z.scutellaris, yellow traps", ylim=ylim, horizontal=TRUE, las=1) boxplot(Zs_stick_traps ~ Treatment, data=Cica2, main="Z.scutellaris, sticky traps", ylim=ylim, horizontal=TRUE, las=1) # A comparison of sampling methods: dev.new(width=10,height=10) pairs(Cica2[,c("Au_Bonitur","Zs_sweep_netting", "Zs_yellow_traps", "Zs_stick_traps")])