The Effect of Harvest Times on Mineral Contents of Almond and Walnut Kernels

Abstract

Ca contents of almond and walnut kernels changed between 924.51 (4. Harvest (H)) and 1970.86 (1. H), and 13.43 (1. H) and 26.51 (4. H) mg/kg, respectively. While K contents of almond kernels range from 4817.31 (2. H) to 7218.58 (1. H), K contents of walnut kernels varied between 2707.33 (3. H) and 11,091.16 (1. H) mg/kg (p< 0.05). P contents of almond kernels were found between 3774.42 (2. H) and 5488.25 (1. H) mg/kg. In addition, P contents of walnut kernels ranged from 2329.10 (3. H) to 2977.60 (1. H) mg/kg (p< 0.05). While Zn contents of almond kernel change between 29.29 (2. H) and 42.15 (3. H) mg/kg, Zn contents of walnut kernels varied between 16.82 (4. H) and 21.25 (1. H) mg/kg. Generally, Ca, Cu, K, Mg, Mn, Na, P and S contents of almond kernels at the first harvest time were found at the high level. The Cu, K, Mg, Na, P, S and Zn contents of walnut kernels were also highest at the first harvest date.