Effect of irrigation regimes by mini sprinkler on yield and pomological traits in 'Tombul' hazelnut
This research was conducted to determine the effect of different irrigation regimes by mini sprinkler method on yield and quality parameters of 'Tombul' hazelnut in Giresun (Turkey) in 2015. The experiment was a completely randomized design with one factor and three replications. Hazelnut ocaks (multiple stem system) were pruned in 2014, 5 stems were kept in each ocak. The ocaks were irrigated with mini-sprinklers at three different water levels (0, 50, and 100%). The results showed that the yield was affected by irrigation levels. The highest yield (3.36 kg ocak-1) was obtained at irrigation level of 65% of full irrigation water amount determined by using curve fitting approach. The control (0%) gave the lowest yield (1.41 kg ocak-1). Irrigation levels had a significant effect on nut weight, shell thickness, kernel weight, kernel size, blank nuts, kernel defects, good kernels and L* color value in kernel powder. However, nuts per cluster, nut size, internal cavity size, kernel percentage, small nuts, average blanching rate, a* and b* color values in kernel powder were not affected significantly. The highest values of nut weight, shell thickness, kernel weight, kernel size, nut blanks and kernel defects were obtained from control (0%) treatment, and the highest percentage of good kernels was obtained from the irrigation level of 50%.
Külahçilar, A., Tonkaz, T. and Bostan, S.Z. (2018). Effect of irrigation regimes by mini sprinkler on yield and pomological traits in 'Tombul' hazelnut. Acta Hortic. 1226, 301-308
hazelnut, irrigation levels, yield, pomological traits, 'Tombul'