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Physiological responses of Hollyhock (Alcea rosea L.) to drought stress
Sadeghi, Arezoo Karimmojeni, Hassan Razmjoo, Jamshid
Sadeghi, Arezoo
Karimmojeni, Hassan
Razmjoo, Jamshid
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2024-08-08
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Abstract
Hollyhock (Alcea rosea L.) is an aromatic, ornamental/medicinal plant species for which the selection of drought-tolerant varieties based on physio-chemical traits is desirable. The data presented resulted from a field experiment. This experiment was designed as a split-plot, based on a randomized complete block design, in which the main plots consisted of the three irrigation regimes (30, 60 and 80% permissible discharge moisture available in the soil), and the subplots consisted of nine hollyhock varieties. Photosynthetic pigments, Fv/Fm, proline content and selected antioxidant enzymes were measured throughout the period of induced drought stress. The data obtained illustrate the nature of the physiological response of hollyhock to drought stress. Based on the measured traits the varieties Isfahan 1, Shiraz 1 and Tabriz were shown to display the highest degree of resistance to drought stress. These data suggest that the effect of drought stress is dependent upon the drought level, variety and the trait in question. In this regard, future plant breeders for this species may find it useful to utilize ascorbate peroxidase (APX), catalase (CAT) and guayacol peroxidase (POX) activities as biochemical markers to select for drought-tolerant genotypes. As such, hollyhock can be considered a promising ornamental/medicinal species for cultivation in semi-arid environments.
Citation
Sadeghi, A.; Karimmojeni, H.; Razmjoo, J.; Baldwin, T.C. (2024) Physiological Responses of Hollyhock (Alcea rosea L.) to Drought Stress. Horticulturae, 10, 841. https://doi.org/10.3390/ horticulturae10080841
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Journal article
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en
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© 2024 The Authors. Published by MDPI. This is an open access article available under a Creative Commons licence. The published version can be accessed at the following link on the publisher’s website: https://doi.org/10.3390/horticulturae10080841
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2311-7524
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2311-7524