Kiraz (Prunus avium) meyvelerinin kalite özellikleri üzerine yaprak gübresi uygulamalarının rolü

Çalışma 2017 yılında Sivas’ın Suşehri ilçesinde yapıldı. Çalışmada bitkisel materyal olarak MaxMa 14 anacı üzerine aşılanmış sekiz yaşındaki 0900 Ziraat çeşidine ait ağaçlar kullanıldı. Çalışmada % 35 potasyum % 5 azot içeren Azro select adlı yaprak gübresi 100 litre suya 250; % 22 çinko içeren çinko tuzu (Çinko Sülfat Hepta Hidrat) yaprak gübresi 100 litre suya 200 gram gübre oranında uygulandı. Uygulanma, çiçeklenme sonu ve ilk uygulamadan 15 gün sonra olacak şekilde iki kez yapıldı. Çalışma sonucunda, potasyum uygulanmış ağaçlarda elde edilen meyvelerin ağırlığı, boyutları, meyve eti sertliği SSC ve vitamin C değerleri önemli derecede daha yüksek iken, meyve rengi değerleri ise daha düşüktü. Ancak titreedilebilir asitlik değerleri üzerine potasyumun etkisi önemli değildir. Çinko uygulaması ile meyve büyüklüğü, SSC ve vitamin C değerlerinde istatistiksel anlamda önemli bir artış meydana gelmezken, meyve eti sertliği, meyve rengi ve titreedilebilir asitlik bakımından en yüksek değerler çinko uygulamasına ait meyvelerde kaydedildi. Çinko ve potasyum kombinasyonu meyve ağırlığı, meyve boyutlar, SSC ve titre edilebilir asitlik değerlerlerinde etkinin artmasına, vitamin C ve renk değerlerinde ise etkinin azalmasına neden olmuştur.

Role of the foliar fertilization treatments on quality attributes of sweet cherry fruits (Prunus avium)

This study was carried out in a cherry in 2017 inSuşehri, Sivas. Eight -years old “0900 Ziraat” sweetcherry trees grafted on MaxMa 14 rootstocks wereused as the plant material of the study. In thestudy, per 100 liters of water 250 gram of Azroselect, a foliar fertilizer which contains 35% potassium and 5% nitrogen, and per 100 liters ofwater 200 gram of Zinc salt (Zinc Sulphate HeptaHydrate) foliar fertilizer, which contains 22 %Zinc, were applied. The treatment was done twice:first, at the end of blooming, second, 15 days afterthe first treatment. As a result of the study, fruitweight, size, fruit firmness, SSC and vitamin C values of fruits obtained from potassium treatedtrees were significantly higher whereas fruit colorvalues were lower. However, the effect of potassium on the titratable acidity values was not significant. With zinc application, while statistically significant increase in the fruit size, SSC and vitaminC values have not occurred, the highest values interms of flesh firmness, fruit color and titratableacidity were recorded in the sweet cherries treated with zinc. The combination of zinc and potassium led to an increase in fruit weight, fruit size, SSCand titratable acidity, and decrease in vitamin Cand color values.

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