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Tamil Nadu Agricultural University Coimbatore, INDIA

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GENETIC ANALYSIS OF GRAIN YIELD AND ITS COMPONENT TRAITS IN BREAD WHEAT UNDER RAINFED AND IRRIGATED CONDITIONS

Ashok Kumar, S.C. Sharma

Affiliations

¹Department of Plant Breeding and Genetics, C S K Himachal Pradesh Krishi Vishavidalya, Palampur-176062, India

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Cite article:- Kumar Ashok, Sharma S.C. (2025). GENETIC ANALYSIS OF GRAIN YIELD AND ITS COMPONENT TRAITS IN BREAD WHEAT UNDER RAINFED AND IRRIGATED CONDITIONS. Indian Journal of Agricultural Research. 42(3): 220 - 223. doi: .

ABSTRACT

The present study revealed the inadequacy of both additive- dominance and digenic epistatic
models for all the traits except spikes/plant in majority of the crosses . Additive gene effects was
prevailed over dominance gene effects for 100- grain weight and grains/ spike, whereas reverse is
for spikes/plant, grain yield/plant and biological yield. Digenic interactions and duplicate type of
epistasis were also observed for these traits. Hybridization systems such as biparental mating and/
or diallel selective matings could be useful for improvement of these traits

KEYWORDS

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