Araştırma Makalesi

Agro-morphological and enzymatic responses of onion to salinity stress under deficit irrigation conditions

Cilt: 14 Sayı: 2 10 Aralık 2025
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Agro-morphological and enzymatic responses of onion to salinity stress under deficit irrigation conditions

Öz

In this study, the responses of onion to drought and salinity stress were investigated. In the research, a total of 15 treatments were designed including water stress levels (I1: non-stress, I2: %25 water stress, I3: %50 water stress) and different NaCl concentrations (S1: 0.3 dS/m-control, S2: 2.5 dS/m, S3: 5.0 dS/m, S4: 7.5 dS/m, S5: 10.0 dS/m). During the experiment, 9.25, 7.66 and 6.07 L/pot irrigation water was applied to I1, I2 and I3 treatments, respectively. As a result of the study, both drought and salinity stress showed destructive effects on the agro-morphological parameters of onion. Especially salinity levels above 7.5 dS/m triggered significant decreases in yield and yield components in onion. Onion yield decreased by 17.3% in S2, 30.3% in S3, 37.5% in S4 and 56.2% in S5 compared to the control group (S1) according to salinity levels. When the effects of water stress and salinity stress were evaluated separately, the highest membrane damage (58.4%) was determined in severe water stress treatment (I3), and the highest H2O2 content was determined in severe salinity stress treatment S5. On the other hand, antioxidant enzymes such as catalase (CAT), peroxidase (POD) and superoxide dismutase undertook more significant tasks under salinity stress compared to water stress and these enzymes reached maximum values especially under severe salinity stress. Increasing salinity stress decreased the water productivity (WP) of onion, whereas increasing water stress provided significant increases in WP values. According to the obtained data; the use of water with electrical conductivity above 2.5 dS/m in irrigation shows that there will be significant yield decreases in onion. On the other hand, it was clearly understood from the results of this study that 25% to 50% water saving can be achieved by deficit irrigation in onion cultivation in water stressed environments.

Anahtar Kelimeler

Kaynakça

  1. Al-Harbi, A.R., Hegazi, H.H., Alsadon, A.A., & El-Adgham, F. (2002). Growth and yield of onion (Allium cepa L.) cultivars under different levels of irrigation water salinity. J. King Saud Univ 14(1), 23-32.
  2. Al-Sammarraie, O.N., Alsharafa, K.Y., Al-Limoun, M.O., Khleifat, K.M., Al-Sarayreh, S.A., Al-Shuneigat, J.M., & Kalaji, H.M. (2020). Effect of various abiotic stressors on some biochemical indices of Lepidium sativum plants. Scientific Reports 10 (1), 21131. https://doi.org/10.1038/s41598-020-78330-1
  3. Arıkan, Ş., İpek, M., Eşitken, A., & Pırlak, L. (2018). Morphological and Physiological Responses to Salt Stress of Blackberry (Rubus fruticocus L.) Cultivar “Jumbo”. 4th International symposium on environment and morals 27-29 June 2018 (ISEM2018 Sarajevo / Bosnia and Herzegovina). 410-415
  4. Arora, D., & Bhatla, S.C. (2017). Melatonin and nitric oxide regulate sunflower seedling growth under salt stress accompanying differential expression of Cu/Zn SOD and Mn SOD. Free Radical Biology and Medicine, 106, 315-328. https://doi.org/10.1016/j.freeradbiomed.2017.02.042
  5. Ashraf, M., & Harris, P.J.C. (2004). Potential biochemical indicators of salinity tolerance in plants. Plant Science J., 166(1), 3-16. https://doi.org/10.1016/j.plantsci.2003.10.024
  6. Asraf, M., & Foolad, M.R. (2007). Roles of glycine betaine and proline in improving plant abiotic stress resistance. Environmental and Experimental Botany, 59, 206-216. https://doi.org/10.1016/j.envexpbot.2005.12.006
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Ayrıntılar

Birincil Dil

İngilizce

Konular

Ziraat Mühendisliği (Diğer)

Bölüm

Araştırma Makalesi

Yayımlanma Tarihi

10 Aralık 2025

Gönderilme Tarihi

13 Ağustos 2025

Kabul Tarihi

27 Ekim 2025

Yayımlandığı Sayı

Yıl 2025 Cilt: 14 Sayı: 2

Kaynak Göster

APA
Altın, E., Yavuz, D., Kal, S., Yavuz, N., & Çiftci, M. S. (2025). Agro-morphological and enzymatic responses of onion to salinity stress under deficit irrigation conditions. Soil Studies, 14(2), 49-62. https://doi.org/10.21657/soilst.1839289
AMA
1.Altın E, Yavuz D, Kal S, Yavuz N, Çiftci MS. Agro-morphological and enzymatic responses of onion to salinity stress under deficit irrigation conditions. SoilSt. 2025;14(2):49-62. doi:10.21657/soilst.1839289
Chicago
Altın, Esra, Duran Yavuz, Songül Kal, Nurcan Yavuz, ve Mahmut Sami Çiftci. 2025. “Agro-morphological and enzymatic responses of onion to salinity stress under deficit irrigation conditions”. Soil Studies 14 (2): 49-62. https://doi.org/10.21657/soilst.1839289.
EndNote
Altın E, Yavuz D, Kal S, Yavuz N, Çiftci MS (01 Aralık 2025) Agro-morphological and enzymatic responses of onion to salinity stress under deficit irrigation conditions. Soil Studies 14 2 49–62.
IEEE
[1]E. Altın, D. Yavuz, S. Kal, N. Yavuz, ve M. S. Çiftci, “Agro-morphological and enzymatic responses of onion to salinity stress under deficit irrigation conditions”, SoilSt, c. 14, sy 2, ss. 49–62, Ara. 2025, doi: 10.21657/soilst.1839289.
ISNAD
Altın, Esra - Yavuz, Duran - Kal, Songül - Yavuz, Nurcan - Çiftci, Mahmut Sami. “Agro-morphological and enzymatic responses of onion to salinity stress under deficit irrigation conditions”. Soil Studies 14/2 (01 Aralık 2025): 49-62. https://doi.org/10.21657/soilst.1839289.
JAMA
1.Altın E, Yavuz D, Kal S, Yavuz N, Çiftci MS. Agro-morphological and enzymatic responses of onion to salinity stress under deficit irrigation conditions. SoilSt. 2025;14:49–62.
MLA
Altın, Esra, vd. “Agro-morphological and enzymatic responses of onion to salinity stress under deficit irrigation conditions”. Soil Studies, c. 14, sy 2, Aralık 2025, ss. 49-62, doi:10.21657/soilst.1839289.
Vancouver
1.Esra Altın, Duran Yavuz, Songül Kal, Nurcan Yavuz, Mahmut Sami Çiftci. Agro-morphological and enzymatic responses of onion to salinity stress under deficit irrigation conditions. SoilSt. 01 Aralık 2025;14(2):49-62. doi:10.21657/soilst.1839289