Precision breeding for drought tolerance using a Copeland method: Integrating receiver operating characteristic analysis and multi-criteria decision making to identify superior Persian walnut genotypes

March 1, 2026Scientia HorticulturaeOpen Access

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Key Points

The aim is to identify drought-tolerant Persian walnut genotypes using a Copeland-based multi-criteria decision-making approach.
Assessed 183 walnut genotypes under controlled drought stress conditions.
Applied the ROC curve algorithm to evaluate drought-related traits.
Utilized multi-criteria decision-making methods (VIKOR, TOPSIS, SAW, ELECTRE) for genotype ranking.
Implemented Copeland ranking aggregation to determine superior genotypes.
Drought-tolerant genotypes showed significantly higher tolerance indices.
Key traits indicating tolerance included higher RWC, MSI, photosynthetic pigments, and antioxidant activity.
Top-performing genotypes identified were Ke16, KeSH9, and Ke18.

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This analysis identifies superior drought-tolerant walnut genotypes through ROC analysis and MCDM, suggesting effective breeding strategies.

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Habibi et al. (2026) studied this question.

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