agricolae (version 1.2-0)

RioChillon: Data and analysis Mother and baby trials

Description

Mother/Baby Trials allow farmers and researchers to test best-bet technologies or new cultivars. Evaluation of advanced Clones of potato in the Valley of Rio Chillon - PERU (2004)

Usage

data(RioChillon)

format

The format is list of 2: 1. mother: data.frame: 30 obs. of 3 variables: - block (3 levels) - clon (10 levels) - yield (kg.) 2. babies: data.frame: 90 obs. of 3 variables: - farmer (9 levels) - clon (10 levels) - yield (kg.)

source

Experimental field.

Details

1. Replicated researcher-managed "mother trials" with typically 10 treatments evaluated in small plots. 2. Unreplicated "baby trials" with 10 treatments evaluated in large plots. 3. The "baby trials" with a subset of the treatments in the mother trial.

References

International Potato Center. CIP - Lima Peru.

Examples

# Analisys the Mother/Baby Trial Design
library(agricolae)
data(RioChillon)
# First analysis the Mother Trial Design.
model<-aov(yield ~ block + clon, RioChillon$mother)
anova(model)
cv.model(model)
attach(RioChillon$mother)
comparison<-LSD.test(yield,clon, 18, 4.922, group=TRUE)
detach(RioChillon$mother)
# Second analysis the babies Trial.
attach(RioChillon$babies)
comparison<-friedman(farmer,clon, yield, group=TRUE)
detach(RioChillon$babies)
# Third
# The researcher makes use of data from both mother and baby trials and thereby obtains
# information on suitability of new technologies or cultivars
# for different agro-ecologies and acceptability to farmers.