Vol. 2 No. 82 (2023): “AgriScience and Technology” scientifi
2023; 163–168
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Evaluation of Grain Yield and Drought Tolerance Indices in Armenian and Iranian Wheat Varieties Under Irrigated and Non-Irrigated Conditions

Biayna Vahrami*

Received: 2024-12-26 · Published: 2023-09-27

© 2023 The Author(s) and the original publisher.

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Original title
Evaluation of Grain Yield and Drought Tolerance Indices in Armenian and Iranian Wheat Varieties Under Irrigated and Non-Irrigated Conditions
Author
Biayna Vahrami
Source journal
Vol. 2 No. 82 (2023): “AgriScience and Technology” scientifi
Published
2023-09-27
Licence
as stated by the publisher
Original
https://doi.org/10.52276/25792822-2023.2-163

Abstract

Drought is one of the main abiotic stresses that depends on soil type and rainfall patterns on agrarian land. However, it is mainly responsible for major yield losses in crops. Climate change further compounds the challenges to advanced crop yields. Failure stress reduces crop yield. This research was conducted on grain yield in fifteen Armenian and Iranian wheat varieties to evaluate grain yield and drought tolerance indices. The study was performed with three replications under normal and drought-stress conditions for two years. According to grain yield, eight drought tolerance indices are estimated, including stress tolerance (STI), tolerance index (TOL), stress susceptibility index (SSI), mean productivity (MP), harmonic mean (HM), geometric mean (GMP), yield index (YI), and drought index (DI) for all varieties. The combination of yield analysis, eight drought tolerance indices, and correlation revealed that Navid, Voskehask, Sabalan, and Zare varieties were desirable for drought tolerance. Other varieties were identified as semi-tolerant and sensitive to drought stress.
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