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Yozgat ili Karanlıkdere Vadisinde Ayva Ön Seleksiyonu
(Quince Pre-Selection in the Karanlıkdere Valley of Yozgat )

Author : Aysen KOÇ  Hakan KELEŞ  
Type :
Printing Year : 2018
Number : 2018-Ek Sayı
Page : 23-29


Summary
Yozgat ili Karanlıkdere vadisinde 2016 yılında ön çalışma olarak yürütülen bu araştırmada, Karanlıkdere vadisinin uzandığı Yerköy ilçesinden 5, Şefaatli ilçesinden 11 adet olmak üzere toplam 16 ayva genotipinden meyve örneği alınmıştır. Yapılan değiştirilmiş tartılı derecelendirme sonucunda, 1. yılda 8 tip ümitvar olarak bulunmuştur. Seleksiyonun 2. yılında, önceki yıl seçilen genotiplerin morfolojik özellikleri incelenmiştir. Araştırma sonucunda en düşük meyve ağırlığı 66 ŞFT 01 genotipinde (135.63 g), en yüksek meyve ağırlığı 66 ŞFT 02 genotipinde (530.74 g) belirlenmiştir. Meyve eti sertliği değerleri 9.32 (66 ŞFT 01) ile 10.62 kg cm-2 (66 YRK 05); suda çözünür kuru madde içeriği %12.2 (66 YRK 01) ile 19.8 (66 YRK 05 ve 66 ŞFT 05); titre edilebilir asitlik içeriği ise %8.02 (66 YRK 04) ile 16.09 (66 ŞFT 09) arasında belirlenmiştir. Araştırmada incelenen ayva genotipleri içinde sadece 66 YRK 04 ile 66 ŞFT 01 elma biçimli (maliformis), geriye kalan 14 genotip ise armut biçimli (pyriformis) olarak tespit edilmiştir.

Turkish Keywords
Cydonia oblanga Mill., Karanlıkdere Vadisi, meyve özellikleri, seleksiyon, Yozgat

Abstract
This research was carried out in Yozgat province Karanlıkdere Valley in 2016. In the study, fruit samples were taken from 5 genotypes in Yerköy and 11 genotypes in Şefaatli, totally 16 quince genotypes were sampled. In the 1st year of this experiment, 8 promising genotypes were defined based on modified weighted grading evaluation method. In the 2nd year of the selection, the morphological characteristics of the genotypes, selected in the previous year, were examined. It was determined that the mean fruit weights, flesh firmness, soluble solid contents, titratable acidity, and these selected genotypes were ranged from 135.63g to 530.74g; from 9.32 kg cm-2 to 10.62 kg cm-2; from 12.2% to 19.8%; from 8.02% to 16.09%, respectively. Within the quince genotypes investigated in this study, while only 2 genotypeswere classified as appleshaped (maliformis), remaining 14 genotypeswere pearshaped (pyriformis).

Keywords
Cydonia oblanga Mill., fruit properties, Karanlıkdere Valley, selection, Yozgat

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