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Journals / MANTAR DERGİSİ / 2026 / Cilt: 17 Sayı: 1

The Control of the Post-Harvest Pathogen Alternaria spp. in the Preservation of the Seedless Sultani Grape Variety Grown in the Aegean Region

Ege Bölgesinde Yetiştirilen Sultani Çekirdeksiz Üzüm Çeşidinin Muhafazasında Hasat Sonrası Patojeni Alternaria spp.’nın Kontrolü

Nurdan Güngör Savaş(Manisa Bağcılık Araştırma Enstitüsü Müdürlüğü)0000-0002-3450-4747
Figen Yıldız(EGE ÜNİVERSİTESİ, ZİRAAT FAKÜLTESİ)0000-0002-9562-5657
Pages
20–30
Publication Date
2026-04-30
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

According to the results, rot development was determined to be 0.00% during the three-month storage period in the M. pulcherrima and full-dose SO₂ paper applications, while rot was detected at a rate of 99.3–100% in the control applications.

📌 3 Key Takeaways

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Objective & Hypothesis:The Aegean Region, particularly the province of Manisa, has significant production potential for the cultivation of the Sultani seedless grape variety in Türkiye.
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Key Findings & Data:U 173/6 strain was used instead of fungicide application in the final pre-harvest spraying, and storage was carried out according to packaging house standards.
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Conclusion & Impact:According to the results, rot development was determined to be 0.00% during the three-month storage period in the M. pulcherrima and full-dose SO₂ paper applications, while rot was detected at a rate of 99.3–100% in the control applications.
🔬Design:Araştırma Makalesi
📍Scope:Comprehensive Sample
⚙️Variables:Depolama · Epifitik maya · Fungisit

Abstract

The Aegean Region, particularly the province of Manisa, has significant production potential for the cultivation of the Sultani seedless grape variety in Türkiye. Alternaria species, which cause bunch rot disease due to various factors before the harvest period, lead to serious losses in product quality. This study aimed to determine the presence of Alternaria Nees species in Manisa, a province in the Aegean Region where viticulture is intensively practiced, and to evaluate control methods that could provide control against these pathogenic species, including pre-harvest and post-harvest periods. In the experimental vineyards, the granular formulation of the Metschnikowia pulcherrima Pitt & M.W. Mill. U 173/6 strain was used instead of fungicide application in the final pre-harvest spraying, and storage was carried out according to packaging house standards. The harvested grapes were prepared in four replicates with full and half doses of SO₂ paper applications as a control group and stored for three months. According to the results, rot development was determined to be 0.00% during the three-month storage period in the M. pulcherrima and full-dose SO₂ paper applications, while rot was detected at a rate of 99.3–100% in the control applications. Alternaria spp., Aspergillus spp., and Cladosporium spp. were isolated at the highest density in the control groups. The yeast population increased in the first month of storage and decreased in the second month.

Özet

Ege Bölgesi, özellikle Manisa ili, Türkiye’de Sultani Çekirdeksiz üzüm çeşidinin yetiştiriciliği açısından önemli bir üretim potansiyeline sahiptir. Hasat dönemi öncesi çeşitli etmenler nedeniyle ortaya çıkan salkım çürüklük hastalığı etmenlerinden Alternaria türleri, ürün kalitesinde ciddi kayıplara yol açmaktadır. Bu çalışmada, Ege Bölgesi’nde bağcılığın yoğun olarak yapıldığı Manisa ilinde Alternaria Nees türlerinin varlığını belirlemek ve bu patojen türe karşı hasat öncesi ve hasat sonrası dönemleri içerecek şekilde kontrol sağlayabilecek mücadele yöntemlerini değerlendirmek amaçlanmıştır. Deneme bağlarında hasat öncesi son ilaçlamalarda fungisit uygulaması yerine Metschnikowia pulcherrima Pitt & M.W. Mill. U 173/6 suşunun granüler formülasyonu kullanılmış, depolama ise paketleme evi standartlarına uygun şekilde yürütülmüştür. Hasat edilen üzümler, dört tekerrürlü olarak tam ve yarım doz SO₂ kâğıt uygulamaları ile kontrol grubu şeklinde hazırlanarak üç ay depolanmıştır. Sonuçlara göre, M. pulcherrima ve tam doz SO₂ kâğıt uygulamalarında üç aylık depolama süresince çürüklük gelişimi %0.00 olarak belirlenirken, kontrol uygulamalarında %99.3–100 oranında çürüklük tespit edilmiştir. Kontrol gruplarında en yüksek yoğunlukta Alternaria spp., Aspergillus spp. ve Cladosporium spp., izole edilmiştir. Maya popülasyonu depolamanın ilk ayında artış göstermiş, ikinci ayda azalmıştır.

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Cite This Article

Savaş, N. G., Yıldız, F., *, N. G. S. (2026). The Control of the Post-Harvest Pathogen Alternaria spp. in the Preservation of the Seedless Sultani Grape Variety Grown in the Aegean Region. MANTAR DERGİSİ, Cilt: 17 Sayı: 1, 20–30. https://doi.org/10.30708/mantar.1799468

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