Determination of the Effects of Exogenous Gibberellic Acid on Melon (Cucumis melo L.) Under Drought Stress

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dc.contributor.authorToprak, Seher
dc.contributor.authorCoşkun, Ömer Faruk
dc.date.accessioned2026-03-14T12:03:56Z
dc.date.available2026-03-14T12:03:56Z
dc.date.issued2025
dc.departmentSiirt Üniversitesi
dc.description.abstractThis study aimed to investigate the effects of drought stress on melon (Cucumis melo L.) and to evaluate the potential mitigating role of gibberellic acid (GA?) application. In the experiment, a 10-day drought period was imposed by withholding irrigation, and GA? was applied at a concentration of 100 ppm. The results indicated that drought stress significantly suppressed plant growth. The SPAD value decreased by 26%, from 303.6 ± 8.9 in the control group to 224.1 ± 5.9 under drought conditions, while GA? application did not lead to a statistically significant improvement. Drought stress increased malondialdehyde levels from 3.6 to 7.9, whereas GA? treatment reduced it to 5.67, indicating a partial alleviation of oxidative stress. Root length decreased from 50 ± 8.1 cm in the control to 31 ± 5.09 cm under drought stress and was further reduced to 25 ± 6.03 cm with GA? application. Principal Coordinate Analysis revealed that GA? application did not completely mitigate drought stress but provided partial improvement. These findings highlight the detrimental effects of drought stress on melon and indicate that GA? alone may not be sufficient to alleviate drought-induced damage in melon cultivation.
dc.description.abstractThis study aimed to investigate the effects of drought stress on melon (Cucumis melo L.) and to evaluate the potential mitigating role of gibberellic acid (GA?) application. In the experiment, a 10-day drought period was imposed by withholding irrigation, and GA? was applied at a concentration of 100 ppm. The results indicated that drought stress significantly suppressed plant growth. The SPAD value decreased by 26%, from 303.6 ± 8.9 in the control group to 224.1 ± 5.9 under drought conditions, while GA? application did not lead to a statistically significant improvement. Drought stress increased malondialdehyde levels from 3.6 to 7.9, whereas GA? treatment reduced it to 5.67, indicating a partial alleviation of oxidative stress. Root length decreased from 50 ± 8.1 cm in the control to 31 ± 5.09 cm under drought stress and was further reduced to 25 ± 6.03 cm with GA? application. Principal Coordinate Analysis revealed that GA? application did not completely mitigate drought stress but provided partial improvement. These findings highlight the detrimental effects of drought stress on melon and indicate that GA? alone may not be sufficient to alleviate drought-induced damage in melon cultivation.
dc.identifier.endpage161
dc.identifier.issn2148-2306
dc.identifier.issn2528-858X
dc.identifier.issue2
dc.identifier.startpage155
dc.identifier.urihttps://hdl.handle.net/20.500.12604/10210
dc.identifier.volume12
dc.language.isoen
dc.publisherSiirt Üniversitesi
dc.relation.ispartofTürkiye Tarımsal Araştırmalar Dergisi
dc.relation.ispartofTurkish Journal of Agricultural Research
dc.relation.publicationcategoryMakale - Ulusal Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_DergiPark_20260310
dc.subjectVegetable Growing and Treatment
dc.subjectSebze Yetiştirme ve Islahı
dc.titleDetermination of the Effects of Exogenous Gibberellic Acid on Melon (Cucumis melo L.) Under Drought Stress
dc.typeArticle

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