Analogy between agronomic and grain quality attributes of wheat for response to crop seasons, locations, site-year and genotype- environment interactions
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Authors
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Devinder Mohan
ICAR-Indian Institute of Wheat & Barley Research, Karnal, Haryana-132 001
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Anju Mahendru Singh
ICAR-Indian Agricultural Research Institute, New Delhi-110 012
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Arvind Ahlawat
ICAR-Indian Agricultural Research Institute, New Delhi-110 012
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Raj Kumar Gupta
ICAR-Indian Institute of Wheat & Barley Research, Karnal, Haryana-132 001
Keywords:
Consistency, Grain quality, Indian wheat, Site-year interactions, Stability, Yield componentsAbstract
Locations, crop years and their interactions for yield and quality
determinants were compared by evaluating 14 wheat genotypes for
four crop seasons across six diverse locations in India. A signifcant
impact of locations, crop seasons and location-year interactions was
noted for fve important agronomic and grain quality parameters.
Sites and crop seasons were equally relevant for grain quality but in
agronomic traits, sites contributed more to phenotypic expressions like
plant height and days to heading. Genotype-environment interactions
were rare as only genotype-location for sedimentation volume and
genotype-year for grain hardness index were prominent but many
genotypes could thwart such interactions, too. For all agronomic traits
except kernel weight, locations expressed more variability than the
genotypes. It is suggested that agronomic expression at a test site
cannot be rated for any refection of grain properties but a crop
season unfavorable for yield often has less desired quality attributes.
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