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Geç Yapraklanan ve Yan Dallarda Meyve Veren Ceviz Genotiplerinin Seleksiyon Yoluyla Islahı
(Study On The Selection of Superior Walnut Types With Lateral Bud Fruitfulness and High Nut Quality )

Author : Osman Çağrı KILIÇOĞLU  Yaşar AKÇA  
Type :
Printing Year : 2018
Number : 2018-3
Page : 297-304


Summary
Türkiye, dünyada önemli ceviz üreten ülkelerden biridir. 2017 yılı istatistiklerine göre 190.000 ton üretimi ile dünyada 4. sıradadır. Juglans regia, Türkiye’de ekonomik olarak yetiştiriciliği yapılan önemli bir türdür. Türkiye’de, uzun zamandır cevizin tohumla çoğaltılması, geniş genetik kaynaklar sunan çok sayıda ceviz ağacı varlığı oluşturmuştur. Bu araştırmada, Tokat ilinin Turhal ve Zile ilçelerinde tohumdan yetişmiş ceviz popülâsyonu içinde yan dallarda meyve veren 55 ceviz tipi incelenmiştir. Araştırmada 21 genotip seçilmiştir. Seçilen tiplerde yan dallarda meyve verme oranı %35 (60-TR-12) ile %85 (60-ZL-01) arasında tespit edilmiştir. Ortalama kabuklu meyve ağırlığı 8.16 g (60- TR-16)- 14.71 g (60-TR-03), iç ceviz ağırlığı 3.98 g (60-TR-16) to 7.4 g (60-ZL-01) arasında, meyve boyu 24.41 mm (60-ZL-06) 42.50 mm (60-TR-07) arasında, meyve eni 22.25 mm (60-ZL-06)-34.58 mm (60-ZL-04) arasında, meyve yüksekliği 23.77 mm (60-ZL-06)- 35.58 mm (60-ZL-02) arasında, kabuk kalınlığı 0.36 mm (60-TR-22) -1.48 mm (60- TR-03) arasında bulunmuştur.

Turkish Keywords
Ceviz çeşit ıslahı, yan dallarda meyve verme, meyve kalitesi

Abstract
Turkey is one of the most important producers of walnut in the world. In 2017, Turkey ranked fourth in world production with 190000 t of production. Juglans regia L. is a very important species commercially grown in Turkey. Continuous seed propagation in Turkey has given rise to a great number of seedling walnut trees, which represent valuable walnut gene resources. In this study 55 walnut genotypes with lateral bud fruitfulness in the population of walnut which is grown from seed in counties of Turhal and Zile have been examined and 21 genotypes were selected. The percentage of lateral bud fruitfulness of selected types is determined between 35 % (60-TR-12) and 85 % (60-ZL-01). The nut weight ranged between 8.16 g (60-TR- 16) to 14.71 g (60-TR-03), kernel weight changed between 3.98 g (60-TR-16) to 7.4 g (60-ZL-01), nut length was determined as 24.41 mm (60-ZL-06) 42.50 mm (60-TR- 07), nut suture 22.25 mm (60-ZL-06) - 34.58 mm (60ZL-04), nut cheek 23.77 mm (60- ZL-06) - 35.58 mm (60-ZL-02), shell thickness ranged from 0.36 mm (60-TR- 22) to1.48 mm (60-TR-03) .

Keywords
Walnut variety breeding, lateral bud fruitfulness, nut quality

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