Comparison of Some Local and Foreign Walnut Cultivars

Öz

The performance of 12 walnut cultivars (‘Şebin’, ‘Şen1’, ‘Kaman1’, ‘Maraş18’, ‘Maraş12’, ‘Şen 2’, ‘Fernette’, ‘Chandler’, ‘Howard’, ‘Midland’, ‘Fernor’, ve ‘Pedro’) were evaluated under the ecological conditions at Niksar. The research orchard was established planted in 2008 with 7×7 m spacing. Phenological, pomological attributes and yield of cultivars were determined, between 2012 to 2015 years. Leafing of all of Turkish walnut cultivars in this research were found earlier than foreign cultivars. The leafing time of ‘Fernor’, ‘Fernette’, and ‘Chandler’ cv. were the latest among all cultivars. The cultivars with the earliest leaf fall dates were observed as ‘Maraş12’, ‘Maraş18’ and Şen2, the latest leaf fall dates were observed as ‘Chandler’, ‘Midland’ and ‘Pedro’. Nut weight was found between 10.32 g (‘Maraş12’) - 20.15 g (‘Şen 1’), kernel weight 6.17 g (‘Maraş12’) - 10.69 g (‘Şen1’), kernel percentage between 44.92% (‘Pedro’) - 65.54 (‘Şebin’). Shell thickness was noted between 0.85 mm (‘Şebin’) – 1.97 mm (‘Fernor’). The total yield (kg/tree) of cultivars was determined between 2.29 (‘Maraş12’) and 23.56 (‘Pedro’). Later leafing cultivars seem to be more suitable for Niksar ecological region.

Anahtar Kelimeler

• Walnut
• late leafing
• yield
• pomology
• phenology
• Niksar

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