Document Type : Original Article
Authors
1
Ph.D. Student, Department of Horticultural Sciences and Agronomy, Science and Research Branch, Islamic Azad University, Tehran, Iran.
2
Associate professor, Temperate Fruit Research Center, Horticultural Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran.
3
Professor, Department of Horticultural Sciences, Faculty of Agriculture, Tehran University, Tehran, Iran.
4
Assistant professor, Department of Horticultural Science and Agronomy, Science and Research Branch, Islamic Azad University, Tehran, Iran.
5
Professor, Department of Horticultural Sciences, Faculty of Agriculture, Urmia University, Urmia, Iran.
10.30466/rip.2021.53312.1158
Abstract
This research was conducted as a factorial experiment with two factors in a completely randomized design (CRD) with three replications during 2019 and 2020 at the Temperate Fruit Research Centre, Horticultural Research Institute. The first factor consisted of ten almond genotypes, while the second factor was drought stress at two levels. The selected genotypes were evaluated based on morphological traits, including seedling height, trunk diameter above the graft region, new branch growth length, and leaf yellowing and abscission. Additionally, several physiological indicators were measured under drought stress conditions to identify resistant and sensitive genotypes. These indicators included the chlorophyll content index (based on SPAD values), relative leaf water content, and chlorophyll fluorescence. Among the evaluated genotypes, A-7-100 was identified as the most resistant, whereas A-124-1 was the most sensitive to drought stress.
Keywords
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