Evaluation of genetic diversity in Iranian rye accessions using agro-morphological traits in the Tabriz plain

Document Type : Research paper

Authors

1 Horticulture and Crops Research Department, East Azarbaijan Agricultural and Natural Resources Research and Education Center, AREEO, Tabriz, Iran.

2 Seed and Plant Improvement Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran.

Abstract

In this study, 13 rye populations—previously screened for superior performance over the “DANKO” control variety and high drought tolerance—were evaluated in the Tabriz Plain. The experiment was conducted at the Agricultural Research and Natural Resources Training Center of East Azerbaijan using a randomized complete block design (RCBD) with three replications. Following the assessment of agro-morphological traits, data were analyzed using analysis of variance (ANOVA), mean comparison tests, regression, path analysis, and cluster analysis. Results revealed significant differences (p>0.01) among the ecotypes for all studied traits. Mean comparisons indicated that ecotypes TN-243, 110027, TN-220, TN-3, and 110095 were high-yielding genotypes, whereas DANKO and TN-2 were classified as low-yielding under the regional conditions. Furthermore, the findings identified TN-220, TN-3, TN-243, 13139, TN-91, and 110085 as superior ecotypes. This study demonstrates that Iranian local rye accessions, particularly TN-3, TN-243, 13139, TN-91, and 110085, possess substantial genetic diversity and performance competitive with commercial varieties. These results highlight their potential as valuable germplasm for future breeding programs aimed at climate change adaptation. Overall, the observed high phenotypic diversity underscores the suitability of these ecotypes for diverse breeding objectives.

Keywords

References

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History

  • Receive Date: 29 March 2025
  • Revise Date: 05 October 2025
  • Accept Date: 01 December 2025

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