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Research Article Open access CC BY 4.0

Evaluation of a Hexaploid Wheat Collection (Triticum aestivum L.) under Drought Stress Conditions Using Stress Tolerance Indices

Alireza Daneshvar Hosseini, Ali Dadkhodaie, Bahram Heidari, Seyed Abdolreza Kazemeini

Annual Research & Review in Biology · pp. 1–10 · Published 6 Mar 2020

10.9734/arrb/2019/v34i630168

Abstract

Wheat is the most important crop in the world which faces the global problem of drought. Its production is affected by water deficit after pollination in arid and semi-arid regions. An experiment was conducted to assess tolerance of 39 bread wheat genotypes to end-season drought. The experimental design was Randomized Complete Block in three replications and the drought tolerance indices (SSI, STI, TOL, MP and GMP) were calculated for grain yield. The cultivar Cambin produced the highest grain yield under normal irrigation by 369.19 g m-2 while Arina had the highest yield (223.35 g m-2) under drought stress conditions. Stress tolerance (TOL) introduced Hindukesh, Iran2355 and Iran6476 as drought tolerant genotypes. Also, results showed that grain yield under stress and non-stress environments were highly correlated with the mean productivity (MP), the geometric mean productivity (GMP) and tolerance index (TOL). These genotypes could be further used in crosses for genetic studies and breeding programs for improvement tolerance to drought.

Correlation drought tolerance wheat yield.

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Cited by 3

Identification of Wheat Genotypes for Water Stress Tolerance on the Basis of Morpho-Yield Traits

S. Khanzada, Zahoor Ahmed Soomro, S. Mari · Biological sciences · 2025

List of Reviewers

· Counselling Psychology Quarterly · 2020

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