Yüksek Sıcaklık Stresine Tolerant Domates Genotiplerinin Meyvede Mineral İçeriği Bakımından Taranması

Tarım, iklim değişikliğinden en fazla etkilenen sektörlerin başında gelmektedir. Türkiye'nin coğrafi konumu nedeniyle iklim değişikliğinin olumsuz etkilerine maruz kalması kaçınılmaz görülmektedir. Yeni yüksek sıcaklık stresine toleranslı çeşitlerin geliştirilmesi, iklim değişikliğine uyumda önemli bir ekonomik önlem olarak görülmektedir. Bu çalışmada, meyve mineral içeriği açısından yüksek sıcaklık stresine toleranslı domates genotipleri araştırılmıştır. Bu amaçla, Çukurova Üniversitesi Bahçe Bitkileri Bölümü gen havuzunda bulunan yirmi adet toleranslı domates genotipi ve ticari iki çeşit kullanılarak Adana-Çukurova ekolojik koşullarında 2016 ilkbahar ve yaz aylarında açık alanda yetiştirilmiştir. Kontrol ve yüksek sıcaklık koşulları altında eld edilen domates meyvelerinde fosfor, potasyum, kalsiyum, magnezyum, demir, manganez, bakır ve çinko mineralleri analiz edilmiştir. Domates meyvesi mineral içeriği üzerindeki yüksek sıcaklık stresi etkisine göre, makro-minerallerde en az stresden etkilenenden en çok etkilenene göre P, K, Ca ve Mg olarak sıralanmıştır. Ve mikro-mineraller ise Cu, Fe, Zn olarak en az etkilenenden en çok etkilenene doğru sıralanmıştır. Bu çalışmada yüksek sıcaklık stresine toleranslı domates genotipleri meyvenin mineral içeriğini korumak için iyi performans göstermiş ve mineral içeriği çoğu durumda kontrol olarak kullanılan ticareti çeşitlerin mineral içeriğinden daha yüksek bulunmuştur.

Screening of High Temperature Tolerant Tomato Genotypes for Their Fruit Mineral Content

Agriculture is at the forefront of the sectors that will be most affected by climate change. It is inevitablethat Turkey is exposed to the negative effects of climate change due to its geographical location. Thedevelopment of new high temperature tolerant varieties is seen as an important economic measure in theadaptation to climate change. In this study, heat temparature tolerant tomato genotypes were investigated fortheir fruit mineral content. For this purpose, twenty tolerant tomatoes from the gene pool of the ÇukurovaUniversity, Department of Horticulture the and two commerical cultivars were grown in the open field conditionsduring 2016 spring and summer periods in Adana, Turkey. Tomato fruits grown under control and hightemperature stresses conditions were analyzed for phosphorus, potassium, calcium, magnesium, iron,manganese, copper and zinc. According to heat stress effects on the tomato fruit mineral content, the macronutrientswere ordered P, K, Ca, Mg from the least affected to the most affected. Moreover, the micro-nutrientswere ordered Cu, Fe and Zn from the least affected to the most affected. In the present study heat tolerant tomatogenotypes showed better performance and their mineral content most cases were higher than mineral content ofthe control trade cultivars.

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