NUT AND KERNEL PROPERTIES OF FIVE PROMISING WALNUT (Juglans regia L.) GENOTYPES ADOPTED TO HIGH ALTITUDES
Nut and kernel characteristics of five promising walnut genotypes from Asagikoy and Yelesen districts in the south of Bingol city center in Turkey were evaluated. The genotypes were well-adopted to the harsh climatic conditions above the sea level of 1400 to 1800 m. Inshell nut weight ranges from 9.86 to 15.80 g with a mean of 11.38 g. Kernel weight varies from 5.12 to 6.89 g with a mean of 5.76 g. Kernel percentage is in the range of 48.88 and 58.07%, and the average value is 51.60%. Shell color is mostly brighter but lighter in yellow compared to kernel. Smoothness on the shell surface is rated mild for two genotypes while very unwrinkled for 3 genotypes. Veins on kernel pellicle are very distinctive for 3 genotypes whereas faint for 3 genotypes. The genotypes may be used for the improvement of walnuts to resists or tolerate colds.