Characterization of fatty acid and tocopherol content of Chandler' x Kaplan- F1 walnut population

Walnut fruits are classified as functional group due to the rich in easily digestible protein content, polyunsaturated fatty acids, polyunsaturated fatty acids and melatonin compounds. Today, breeders aimed to improve new cultuvars especially rich in health benefit compounds. For this purpose, hybridization programme started in our country, also.This study characterized the tocopherol and fatty acids of walnut seeds obtained Chandler × Kaplan 86 F1 population. 137 genotype of Chandler × Kaplan 86, population were compared in this study. The population screened based on their, linoleic acid, linolenic acid,oleic acid, stearic acid, palmitic acid, palmitoleic acid, miristic acid, arasidic acid content. Linoleic acid, linolenic acid,oleic acid, stearic acid, palmitic acid, palmitoleic acid, miristic acid, arasidic acid content were obtained in Chandler %60.2,%11.57, %15.35,%2.52, %5.86,%0.01, %0.02,% 0.14 respectively, in Kaplan 86; %57.26,% 13.52, %17.24, %3.19, %6.83,% 0.01, %0.03, %0.15. As for the fatty acids content; linoleic acid (34.9-65.38 %) , linolenic acid (5.97-17.03%), oleic acid (10.16-26.71%), stearic acid (2.52-3.19%), palmitic acid (4.91-8.14%), palmitoleic acid (0.00-16.93%), miristic acid (0.00-0.25%), arashidic acid (0.00-0.47%) varied among the genotypes and alpha-tocopherol ranged between 10.81 to 98.23 ug/g in F1 population of Chandler × Kaplan 86. Alpha tocopherol (10.81-98.23 ug/g), beta tocopherol (0.00-16.00ug/ml), gama tocopherol (115.1-712.2ug/g) and delta tocopherol content (13.11-69.29ug/ml) were identified and quantified by HPLC technique. Heterosis was obtained based on the detected characters and the highest value of linoleic acid, oleic acid, linolenic acid, palmitic acid, stearic acid, palmitoleic acid, arashidic acid, miristic acid were obtained in genotype numbers 50, 63, 222, 63 ,16, 204, 199 and 100 respectivley.