Selection of Superior Walnut Types With Lateral Bud Fruitfulness and High Nut Quality

Year 2018, , 297 - 304, 31.12.2018

Osman Çağrı Kılıçoğlu Yaşar Akça

https://doi.org/10.13002/jafag4441

Abstract

The aim of this research is to protect genetic resources and to select new types of walnuts in Turhal and Zile walnut populations. 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. 55 walnut genotypes grown from seeds and having the lateral bud fruitfulness in walnut population were examined in Turhal and Zile regions. As a result of this examination, 21 genotypes were selected Promising walnut genotypes were selected according to by weighted-rankid method. The percentage of lateral bud fruitfulness of selected types is determined between 35 % (60-TR-12) and 85 % (60-ZL-01). The average of nut weight ranged between 8.16 g (60-TR- 16) and 14.71 g (60-TR-03), kernel weight changed between 3.98 g (60-TR-16) and 7.40 g (60-ZL-01), nut length was determined 26.41 mm (60-ZL-06) and 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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