Nar (Punica granatum L.) Meyvesinde Güneş Yanıklığı: Nedenleri ve Önlenmesine Yönelik Entegre Yönetim Uygulamaları

Year 2025, Volume: 8 Issue: 2, 195 - 211, 29.12.2025

Ali İkinci

https://doi.org/10.46876/ja.1799371

Abstract

Bu derleme, nar meyvesinde önemli verim ve kalite kayıplarına yol açan güneş yanıklığı bozukluğunu ele almaktadır. Çalışma, bozukluğun fizyolojik temellerini, ekonomik etkilerini ve önleme stratejilerini; elma, armut ve üzüm gibi diğer türlerle karşılaştırmalı olarak sentezlemeyi amaçlamaktadır. Güneş yanıklığı, meyve yüzey sıcaklığının 45-50°C üzerine çıkmasıyla tetiklenir. Bu durum, kabukta hücre ölümü, nekroz, kahverengileşme ve çatlaklarla sonuçlanır. Temel mekanizma, aşırı sıcaklık ile radyasyonun neden olduğu oksidatif stres ve antioksidan savunma sistemlerinin çöküşüdür. Süreç, lipid peroksidasyonu, antosiyanin parçalanması ve fenolik bileşik kaybına yol açar. Bunun sonucunda meyvenin görsel kalitesi, besin değeri, raf ömrü ve fonksiyonel özellikleri bozulmaktadır. Bozukluk, Akdeniz havzasında %30-40'a varan verim kaybına neden olur. Üretici gelirlerinde %20'yi aşan düşüşe yol açar. Tüketici algısında dış görünümün belirleyici olması, yanıklığın ekonomik etkisini daha da ağırlaştırmaktadır. Güneş yanıklığıyla mücadelede kaolin bazlı kaplamalar, gölgeleme ağları ve meyve torbalama gibi fiziksel yöntemler etkilidir. Dengeli budama ile sulama gibi kültürel uygulamalar da kısa vadede olumlu sonuçlar verir. Uzun vadeli ve sürdürülebilir çözüm ise dayanıklı çeşit kullanımına ve ıslah çalışmalarına dayanmaktadır. İklim değişikliğinin sıcaklık stresini artırması, kültürel uygulamaların dijital tarım teknolojileri ve erken uyarı sistemleriyle entegre edilmesini zorunlu kılmaktadır. Bu kapsamlı ve öngörülü yönetim yaklaşımı, nar yetiştiriciliğinde hem verim hem kalite kayıplarını azaltmak hem de ekonomik sürdürülebilirliği güvence altına almak açısından büyük önem taşımaktadır.

Keywords

Nar , güneş yanıklığı , fizyolojik bozukluk , oksidatif stres , ekonomik kayıp , entegre mücadele , iklim değişikliği , meyve kalitesi

Sunburn in Pomegranate (Punica granatum L.) Fruit: Causes and Integrated Management Practices for Its Prevention

Abstract

Sunburn is a major physiological disorder causing substantial yield and quality losses in pomegranate (Punica granatum L.). This review synthesizes the physiological basis, economic impacts, and integrated management strategies for the disorder, drawing comparative insights from other fruit species such as apple, pear, and grape. Sunburn develops when the fruit surface temperature exceeds 45–50°C, leading to cell death, necrosis, browning, and peel cracking. The underlying mechanism is driven by oxidative stress induced by excessive heat and radiation, which collapses antioxidant defense systems and results in lipid peroxidation, anthocyanin degradation, and the loss of phenolic compounds. Consequently, the fruit’s visual quality, nutritional value, shelf life, and functional properties are severely compromised. The disorder can cause 30–40% yield losses in the Mediterranean basin, reducing grower income by more than 20%, and its economic impact is intensified by the decisive role of external appearance in consumer perception. Physical measures such as kaolin-based particle films, shading nets, and fruit bagging have proven effective in reducing sunburn, while cultural practices including balanced pruning and optimized irrigation offer additional benefits. In the long term, the adoption of tolerant cultivars and the development of targeted breeding programs represent the most sustainable solutions. As climate change intensifies heat stress and increases the frequency of extreme temperature events, integrating cultural practices with digital agriculture technologies and early warning systems becomes essential. A comprehensive, forward-looking management approach is therefore critical to mitigate yield and quality losses and to ensure the economic sustainability of pomegranate production.

Keywords

Sunburn , physiological disorder , oxidative stress , economic loss , integrated management , climate change , fruit quality

References

• Ali, M. M., Anwar, R., Yousef, A. F., Li, B., Luvisi, A., De Bellis, L., Aprile, A., & Chen, F. (2021). Influence of Bagging on the Development and Quality of Fruits. Plants, 10(2), 358. https://doi.org/10.3390/plants10020358
• Abou El Wafa, M. (2015). Effect of some treatments on reducing sunburn in Wonderful pomegranate fruit trees. Egypt. Journal of Horticulture, 42(2), 795–806.
• Ahmed, M. F., Ali, R. M., Saad, Z. H., Ghaly, M. S., Abd-Elhamed, W., & Alfawal, G. S. (2024). Ecofriendly treatments to improve pomegranate trees production and tolerance to climate change. CABI Agriculture and Bioscience, 5, 71. https://doi.org/10.1186/s43170-024-00260-z
• Felicetti, D. A., & Schrader, L. E. (2009). Changes in pigment concentrations associated with sunburn browning of five apple cultivars. II. Phenolics. Plant Science, 176(1), 84-89. https://doi.org/10.1016/j.plantsci.2008.09.010
• Gambetta, J. M., Holzapfel, B. P., Stoll, M., & Friedel, M. (2021). Sunburn in grapes: A review. Frontiers in Plant Science, 11, 604691. https://doi.org/10.3389/fpls.2020.604691
• Glenn, D. M., & Puterka, G. (2004). Particle film technology: An overview of history, concepts and impact in horticulture. Acta Horticulturae, 636, 509–511. https://doi.org/10.17660/ActaHortic.2004.636.63
• Glenn, D. M., Puterka, G. J., Drake, S. R., Unruh, T. R., Knight, A. L., Baherle, P., … & Baugher, T. A. (2001). Particle film application influences apple leaf physiology, fruit yield, and fruit quality. Journal of the American Society for Horticultural Science, 126(2), 175–181.
• Habibli, O., Seifi, E. & Varasteh, F. (2025). Impact of Coating and Bagging Treatments on Sunburn, Cracking, and Phytochemical Properties of Pomegranates. Applied Fruit Science, 67, 231. https://doi.org/10.1007/s10341-025-01473-w
• Hamedi Sarkomi, F., Moradinezhad, F., & Khayat, M. (2019). Pre-harvest bagging influences sunburn, cracking and quality of pomegranate fruits. Journal of Horticulture and Postharvest Research, 2(2), 131–142. https://doi.org/10.22077/jhpr.2019.2247.1044
• Holland, D., Hatib, K., & Bar‐Ya'akov, I. (2009). Pomegranate: botany, horticulture, breeding. Horticultural reviews, 35, 127-191. https://doi.org/10.1002/9780470593776.ch2
• Ilić, Z. S., & Fallik, E. (2017). Light quality manipulation improves vegetable quality at harvest and postharvest: A review. Environmental and Experimental Botany, 139, 79-90. https://doi.org/10.1016/j.envexpbot.2017.04.006
• IPCC. (2021). Climate Change 2021: The Physical Science Basis. (V. Masson-Delmotte, P. Zhai, A. Pirani, S. L. Connors, C. Péan, S. Berger, N. Caud, Y. Chen, L. Goldfarb, M. I. Gomis, M. Huang, K. Leitzell, E. Lonnoy, J. B. R. Matthews, T. K. Maycock, T. Waterfield, O. Yelekçi, R. Yu, & B. Zhou, Eds.). Contribution of Working Group I to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change. Cambridge University Press. https://doi.org/10.1017/9781009157896
• Kahramanoglu, I., & Usanmaz, S. (2016). Pomegranate production and marketing (1st ed.). CRC Press, 148p. https://doi.org/10.1201/b20151
• Mditshwa, A., Magwaza, L. S., & Tesfay, S. Z. (2019). Shade netting on subtropical fruit: Effect on environmental conditions, tree physiology and fruit quality. Scientia Horticulturae, 256, 108556. https://doi.org/10.1016/j.scienta.2019.108556.
• Melgarejo, P., Martínez, J. J., Hernández, F., Martínez-Font, R., Barrows, P., & Erez, A. (2004). Kaolin treatment to reduce pomegranate sunburn. Scientia Horticulturae, 100(1–4), 349–353. https://doi.org/10.1016/j.scienta.2003.10.001
• Mincuzzi, A., & Ippolito, A. (2023). Pomegranate: Postharvest fungal diseases and control. In: New advances in postharvest technology. IntechOpen. https://doi.org/10.5772/intechopen.109665
• Mohammadi, M., Boghrati, Z., Emami, S. A., & Akaberi, M. (2023). Pomegranate: A review of the heavenly healer's past, present, and future. Iranian Journal of Basic Medical Sciences, 26(11), 1245–1264. https://doi.org/10.22038/IJBMS.2023.72816.15844
• Narjesi, V., Moghadam, J. F., & Ghasemi-Soloklui, A. A. (2023). Effects of photo-selective shade net color and shading percentage on reducing sunburn and increasing the quantity and quality of pomegranate fruit. International Journal of Horticultural Science and Technology, 10(Special Issues), 25-38.
• Racsko, J., & Schrader, L. E. (2012). Sunburn of apple fruit: historical background, recent advances and future perspectives. Critical Reviews in Plant Sciences, 31(6), 455–504. https://doi.org/10.1080/07352689.2012.696453
• Schrader, L. E., Zhang, J., & Sun, J. (2003). Environmental stresses that cause sunburn of apple. Acta Horticulturae, 618, 397–405. https://doi.org/10.17660/ActaHortic.2003.618.47
• Shahak, Y. (2008). Photo-selective netting for improved performance of horticultural crops. A review of ornamental and vegetable studies carried out in Israel. Acta Horticulturae, 770, 161-168. https://doi.org/10.17660/ActaHortic.2008.770.18
• Shahak, Y. (2014). Photosselective netting: An overview of the concept, research and development and practical implementation in agriculture. Acta Horticulturae, 1015, 155–162. https://doi.org/10.17660/ActaHortic.2014.1015.17
• Sharma, R. R., Datta, S. C., & Varghese, E. (2018). Effect of Surround WP®, a kaolin-based particle film on sunburn, fruit cracking and postharvest quality of ‘Kandhari’ pomegranates. Crop Protection, 114, 18–22. https://doi.org/10.1016/j.cropro.2018.08.009
• Stamps, R. H. (2009). Use of colored shade netting in horticulture. HortScience, 44(2), 239-241. https://doi.org/10.21273/HORTSCI.44.2.239
• Tehranifar, A., Zarei, M., Nemati, Z., Esfandiyari, B., & Vazifeshenas, M. R. (2010). Investigation of physico-chemical properties and antioxidant activity of twenty Iranian pomegranate (Punica granatum L.) cultivars. Scientia Horticulturae, 126(2), 180–185. https://doi.org/10.1016/j.scienta.2010.07.001
• Torres, C. A., Sepulveda, A., Gonzalez-Talice, J., Yuri, R., and Razmilic, I. (2013). Fruit water relations and osmoregulation on apples (Malus domestica Borkh.) with different sun exposures and sun-injury levels on the tree. Scientia Horticulturae, 161, 143–152. https://doi.org/10.1016/j.scienta.2013.06.035
• Weerakkody, P., Jobling, J., Infante, M. M. V., & Rogers, G. (2010). The effect of maturity, sunburn and the application of sunscreens on the internal and external qualities of pomegranate fruit grown in Australia. Scientia Horticulturae, 124(1), 57–61. https://doi.org/10.1016/j.scienta.2009.12.003
• Yazıcı, K., & Çevik, M. Ş. (2022). Development of DNA markers associated with sunburn resistance in pomegranate. Turkish Journal of Agriculture and Forestry, 46(6), 955–965. https://doi.org/10.55730/1300-011X.3056
• Yazici, K., & Kaynak, L. (2009). Effect of kaolin and shading treatments on sunburn on fruits of Hicaznar cultivar of pomegranate (Punica granatum L. cv. Hicaznar). Acta Horticulturae, 818, 167–174. https://doi.org/10.17660/actahortic.2009.818.24