Genotype × Environment Interaction Studies in Rainfed Durum Wheat (Triticum Durum L.) using AMMI and Regression Models

Genotype X Environment interaction studies in rainfed durum wheat


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Authors

  • Vijeth Garukupati Manjunath Department of Genetics and Plant Breeding, College of Agriculture, Raichur, University of Agricultural Sciences, Raichur – 584104, Karnataka, India
  • Uday Govindareddy Scientist (Plant Breeding), All India Coordinated Research Project on Wheat, University of Agricultural Sciences, Dharwad-580005, Karnataka, India
  • Chaya Gowdra Basavarajappa Department of Crop Physiology, College of Agriculture, Dharwad, University of Agricultural Sciences, Dharwad – 580005, Karnataka, India
  • Sukanya Jogin Department of Genetics and Plant Breeding, College of Agriculture, Dharwad, University of Agricultural Sciences, Dharwad – 580005, Karnataka, India

https://doi.org/10.25174/2582-2675/2026/176616

Keywords:

Triticum durum, G×E, AMMI, SREG, Stable genotype

Abstract

A set of diverse 23 durum wheat (Triticum durum sp.) genotypes were evaluated for their stable performance and genotype × environment (GXE) interaction in wheat under rainfed environments of peninsular zone of Karnataka during rabi 2023-24 and 2024-25. Environmental variance was highly significant for grain yield and quality traits studied. The data were analysed by regression analysis, Additive Main Effects and Multiplicative Interaction (AMMI), and the Sites Regression (SREG) model. Results showed that ‘UASDW30395’ was the best yielder (3280 kg/ha) whereas, UASDW30615 had high sedimentation value (30.74 cm3) and yellow pigment (5.12 ppm). Genotypes UASDW30595, UAS DW-30377 and UAS DW-30508 performed stably in all the environments for grain protein (13.42%), grain iron (35.6 ppm) and grain zinc (35.06 ppm), respectively. AMMI considers the effects of G and G × E separately where, SREG model combines these sources of variation. This indicated that the AMMI and SREG/GGE Biplot Model are the most effective models to identify best ranked stable genotypes.

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Submitted

2026-02-28

Published

2026-04-30

Issue

Vol. 18 No. 1 (2026)

Section

Research Article

License

Copyright (c) 2026 Journal of Cereal Research

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How to Cite

Manjunath, V. G. ., Govindareddy, U., Basavarajappa, C. G. ., & Jogin, S. (2026). Genotype × Environment Interaction Studies in Rainfed Durum Wheat (Triticum Durum L.) using AMMI and Regression Models: Genotype X Environment interaction studies in rainfed durum wheat. Journal of Cereal Research, 18(1), 116-126. https://doi.org/10.25174/2582-2675/2026/176616