ltcs {gpbStat}

Analysis of Line x Tester data on single plant basis containing only Crosses laid out in RCBD or Alpha Lattice design.

Description

Analysis of Line x Tester data on single plant basis containing only Crosses laid out in RCBD or Alpha Lattice design.

Usage

ltcs(data, replication, line, tester, obs, y, block)

Arguments

data

dataframe containing following variables

replication

replication

line

line

tester

tester

obs

single plant observations

y

dependent variable

block

block (for alpha lattice design only)

Details

Analyzing the line by tester data single plant observations 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.

Std.Error

Standard error for combining ability effects.

C.D.

Critical Difference at 5 pecent for combining ability effects.

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 L 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. Arunachalam, V. (1974), The fallacy behind use of modified line x tester design. The Indian Journal of Genetics and Plant Breeding, 34: 280-287.

See Also

ltc, ltcmt

Examples

## Not run: #Line Tester analysis data with only crosses in RCBD
library(gpbStat)
data(rcbdltcs)
result1 = ltcs(rcbdltcs, replication, line, tester, obs, yield)
result1

#Line Tester analysis data with only crosses in Alpha Lattice
library(gpbStat)
data(alphaltcs)
result2 = ltcs(alphaltcs, replication, line, tester, obs, yield, block)
result2

## End(Not run)