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Effects of Branch Number on Quality Traits and Yield Properties of European Hazelnut ( Corylus avellana L.)

Author

Listed:
  • Tuba Bak

    (Crop and Animal Production Department, Mudurnu Süreyya Astarcı Vocational School, Bolu Abant İzzet Baysal University, Mudurnu, Bolu 14800, Turkey)

  • Turan Karadeniz

    (Department of Horticulture, Faculty of Agriculture, Bolu Abant İzzet Baysal University, Bolu 14030, Turkey)

Abstract

Despite being the world leader in the production of hazelnuts, Turkey’s nut yield per hectare is quite behind other producer countries. The main reasons for low yield are the completion of the economic life of hazelnut orchards and the lack of pruning following the technique. Hazelnuts are being grown with the ‘ocak’ system in Turkey. The ocak system is a bush-like growing technique that does not contain the main trunk but consists of shoots instead. It is necessary to maintain the optimum number of shoots per ocak to increase yield and quality in this system. The effects of different branch numbers on yield and fruit quality parameters of ‘Tombul’ and ‘Palaz’ hazelnut cultivars were investigated in Ordu ecological conditions. ‘Palaz’ had the highest yield per ocak in 8 branches (1460.19 g), while ‘Tombul’ had in the 5 branched ocak (2170.47 g). ‘Palaz’ and ‘Tombul’ had the highest fruit weights in 4 and 4–6 branches, respectively. The highest oil ratio of ‘Palaz’ was observed in 4 branches, while ‘Tombul’ had the highest in 5 branches. The highest kernel ratio was determined in 6 and 5 branches in ‘Palaz’ and ‘Tombul’, respectively. The ocaks with 4 and 5 branches were mostly expressed higher values, and it is foreseen that the number of branches should not exceed 6 to reduce the competition of the branches and to obtain good quality products.

Suggested Citation

  • Tuba Bak & Turan Karadeniz, 2021. "Effects of Branch Number on Quality Traits and Yield Properties of European Hazelnut ( Corylus avellana L.)," Agriculture, MDPI, vol. 11(5), pages 1-10, May.
  • Handle: RePEc:gam:jagris:v:11:y:2021:i:5:p:437-:d:552647
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    Cited by:

    1. Thuy T. P. Mai & Craig M. Hardner & Mobashwer M. Alam & Robert J. Henry & Bruce L. Topp, 2021. "Phenotypic Characterisation for Growth and Nut Characteristics Revealed the Extent of Genetic Diversity in Wild Macadamia Germplasm," Agriculture, MDPI, vol. 11(7), pages 1-14, July.

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