Indian Society of Genetics & Plant Breeding


Exploring phenotypic expression to augment quality of Triticum aestivum and improve selection efficiency

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Contribution of height, heading days and grain ripening
period was examined in quality parameters of 50 Indian
bread wheat (Triticum aestivum L.) cultivars by regression
analysis. Their collective contribution was highly significant
in end-product quality. These traits also contributed in
gluten and protein contents, extraction rate, test weight,
grain appearance and yellow pigments but sedimentation
volume, gluten index and grain hardness remained unfazed.
Heading days was the most prominent factor as it
contributed positively in flour recovery, protein and gluten
contents, test weight, grain appearance, chapati score and
negatively in biscuit spread factor and yellow pigments.
Steady grain ripening enhanced physical grain properties
whereas reverse was true for protein content and cookies.
Height reduced bran content and improved chapati score
but quality of the bread was hampered. Study demonstrated
that phenotypic indicator could supplement quality of endproducts
and make the selection procedure simpler and
improvised. In hard grain varieties, plant height and early
flowering suited chapati quality. Reduced height enhanced
benefits incurred from gluten content and its quality in
bread making. Grain softness and reduced gluten content
was more rewarding when supported by quick grain

Keywords: Bread wheat cultivars, end-product quality, morphological trait, selection efficiency, wheat grain quality


Year: 2016
Volume: 76
Issue: 2
Article DOI: 10.5958/0975-6906.2016.00023.7
Print ISSN: 0019-5200
Online ISSN: 0975-6906


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