ammistability: R package for ranking genotypes based on stability parameters derived from AMMI model

Published on Jul 12, 2019 11:33 AM

Selection of genotype for target environment is affected by
genotype-by-environment interactions (GEI) and AMMI
model is widely used tool to analyse GEI. AMMI does not
quantify stability measure making it difficult to rank
genotypes. To overcome this lacuna AMMI model output is
used to quantify stability measures and rank genotypes.
Of several stability measures available in literature, only
AMMI stability value (ASV) is implemented in package
‘agricole’ and others have not been implemented in any
other R packages. ‘ammistability’ uses output from ‘AMMI’
function in ‘agricolae’ package and computes various
stability parameters for AMMI model. Further, genotypes
are ranked on the basis of simultaneous selection of yield
and stability (SSI). Package also helps to study association
among several stability measures.

Keywords: AMMI, ammistability, GEI, R package

Info

Year: 2019
Volume: 79
Issue: 2
Article DOI: 10.31742/IJGPB.79.2.10
Print ISSN: 0019-5200
Online ISSN: 0975-6906

Authors

B. C. Ajay, J. Aravind and R. Abdul Fiyaz

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