ltcmt: Analysis of Line x Tester data for multiple traits containing...

In gpbStat: Comprehensive Statistical Analysis of Plant Breeding Experiments

Analysis of Line x Tester data for multiple traits containing only Crosses laid out in RCBD or Alpha Lattice design.

Description

Analysis of Line x Tester data for multiple traits containing only Crosses laid out in RCBD or Alpha Lattice design.

Usage

ltcmt(data, replication, line, tester, traits, block)

Arguments

data	dataframe containing following variables
replication	replication
line	line
tester	tester
traits	multiple traits of interest
block	block (for alpha lattice design only)

Details

Analyzing the line by tester data of multiple trais only using the data from crosses which are evaluated in RCBD and Alpha lattice design. All the factors are considered as fixed.

Value

Mean	Table of means.
ANOVA	ANOVA with all the factors.
GCA.Line	GCA effects of lines.
GCA.Tester	GCA effects of testers.
SCA	SCA effects of crosses.
CV	Coefficent of Variation.
Genetic.Variance.Covariance	Genetic component Variance and covariance.
Std.Error	Standard error for combining ability effects.
C.D.	Critical Difference at 5 pecent for combining ability effects.
Add.Dom.Var	Additive and Dominance component of Variance.
Contribution.of.Line.Tester	Contribution of Lines, Testers and Line x Tester towards total variation.

Note

The block variable is inserted at the last if the experimental design is Alpha Lattice. For RCBD no need to have block factor.

Author(s)

Nandan Patil [e-mail]

References

Kempthorne, O. (1957), Introduction to Genetic Statistics. John Wiley and Sons, New York. , 468-472. Singh, R. K. and Chaudhary, B. D. (1977). Biometrical Methods in Quantitative Genetic Analysis. Kalyani Publishers, New Delhi.

See Also

ltcchk

Examples

## Not run: #Line Tester analysis data with only crosses in RCBD
library(gpbStat)
data(rcbdltcmt)
result1 = ltcmt(rcbdltcmt, replication, line, tester, rcbdltcmt[,4:5])
result1

#Line Tester analysis data with only crosses in Alpha Lattice
library(gpbStat)
data(alphaltcmt)
result2 = ltcmt(alphaltcmt, replication, line, tester, alphaltcmt[,5:7], block)
result2

## End(Not run)

gpbStat documentation built on Nov. 2, 2023, 5:52 p.m.