EFFECT OF POLLEN SOURCE ON PERSIAN WALNUT CHARACTERISTICS (JUGLANS REGIA L.)

The effect of pollen of three genotypes (‘Serr’, ‘Z₆₀’ and ‘Z₃₀’) and control (open pollinated) was compared on nut development and quality of three genotypes (‘Z₆₃’, ‘Chandler’, ‘Hartley’). Male flowers were removed on selected female branches and both male and female flowers were covered by double cheese cloth to reduced pollen contamination.
Artificial pollination was done when the stigma of female flowers were pinkish in colour and fully expanded.
After harvest, ‘nut and kernel weight’, ‘length’, ‘diameter’ and ‘shell thickness’ were determined.
The results showed that nut and kernel diameter as well as shell thickness were significantly affected by pollen sources.
Pollen of ‘Z₃₀’ and ‘Z₆₀’ significantly decreased nut diameter and nut weight. ‘Z₃₀’, ‘Z₆₀’ and ‘Serr’ pollen sources decreased shell thickness more than open pollination.

VI International Walnut Symposium

M. Golzari, M. Rahemi, K. Vahdati, D. Hassani

Persian walnut, shell thickness, pollen sources

https://doi.org/10.17660/ActaHortic.2010.861.12