ltcs {gpbStat} | R Documentation |
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 tryanother609@gmail.com
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
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)