Evaluation of Some F1 Hybrids as Early Pear Cultivar Candidate in Terms of Morphological and Commercial Values

Öz

In this study, physico-chemical and sensory evaluations of F1 genotypes that were obtained by hybridizations from ‘Akça’ which is a approvingly consumed early harvest cultivar in our country were made. Furthermore, the susceptibility level of hybrids to fire blight, which is the most devastating disease of pome fruit species was detected. Among the pomological characteristics, fruit width, fruit length, shape index, fruit weight and fruit flesh hardness were varied between 35.84 - 59.19 mm, 42.59 - 71.80 mm, 0.90 - 1.85, 25.53 - 101.40 g, 3.38 - 6.87 kg.cm2, respectively. Soluble solid content, pH, titreable acidity, Vitamin C and antioxidant activity values were determined in the range of %10,93 - 16,77, 3,15 -  4,52, % 0.16 - 0.64, 2.00 - 5,33 mg.L-1 ve %23.37 - 81,20. As a result of weighted rating method, formed by the parameters which bring the commercial value of the genotypes to the forefront, four genotypes have the potential to be registered as early pear cultivar.

Erkenci Armut Çeşit Adayı Bazı F1 Melezlerin Morfolojik ve Ticari Değerler Yönünden Değerlendirilmesi

Öz

Bu çalışmada, ülkemizde beğenilerek tüketilen erkenci ‘Akça’ armut çeşidinden melezleme yoluyla elde edilen F1 melez bireylerin, fiziko-kimyasal ve duyusal değerlendirmeleri yapılmıştır. Ayrıca melez bireylerin, yumuşak çekirdekli meyve türlerinin en yıkıcı hastalığı olan, ateş yanıklığı hastalığına karşı duyarlılık durumları da tespit edilmiştir. Pomolojik özelliklerden meyve eni 35.84 - 59.19 mm,  meyve boyu 42.59 - 71.80 mm, şekil indeksi 0.90 - 1.85, meyve ağırlığı 25.53 - 101.40 g ve meyve eti sertliği 3.38 - 6.87 kg/cm2 sınırlarında saptanmıştır. Suda çözünebilir kuru madde, pH, titre edilebilir asit miktarı, vitamin C ve antioksidan aktivite özellikleri sırası ile %10.93 – 16.77, 3.15 -  4.52, % 0.16 - 0.64, 2.00 – 5.33 mg.L-1 ve %23.37 – 81.20 aralıklarında değişim göstermiştir. Ticari değer taşıyan parametrelerle oluşturulan, tartılı derecelendirme yöntemiyle, dört genotipin, erkenci armut çeşidi olarak tescil edilebilme potansiyelinde olduğu görülmüştür. 

Anahtar Kelimeler

• Antioksidan aktivite,Islah,Pyrus communis L.,Seleksiyon,Vitamin C

Kaynakça

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