Indian Society of Genetics & Plant Breeding
Investigating and improving malting quality in barley is
long-standing objective worldwide. Genotype by
environment interactions (G x E) result inconsistent
genotypic performance and obstruct realization of quality
traits under varying environments. The present
investigation delineated implications of G x E on malting
quality parameters studied for 45 genotypes over three
years. The combined analysis showed significant G x E
interactions (P<0.01) for 1000 grain wt., malt friability and
hot water extract (malt extract). The year source of variation
highly affected malt extract (82.57 %) followed by malt
friability (51.82 %). Average malt extract was observed higher
(81.06 %) during the year 2013, which received higher
precipitation. The significant G x E were further portrayed
into GGE biplots and initial two principal components
depicted higher variation of 93.07, 92.00 and 92.45 % for
1000 grain wt., malt friability and hot water extract,
respectively. Grain protein content revealed negative
correlations with malt extract (-0.60**) and malt friability (-
0.53**). The exotic genotypes Sloop-VIC-VB9953, Henley
and Xanadu exhibited marginal high malting quality but
suffered with low grain yield and prolonged maturity.
Keywords: G x E, malting quality, barley, GGE and GT biplot
Year: 2018
Volume: 78
Issue: 4
Article DOI: 10.31742/IJGPB.78.4.16
Print ISSN: 0019-5200
Online ISSN: 0975-6906
Vishnu Kumar, R. P. S. Verma1, Dinesh Kumar, A. S. Kharub and G. P. Singh info_circle
Download PDF