Evaluation of walnut’s seed properties in Kurdestan province

Seeds of 28 elite walnut genotypes were collected from five sites to study their genetic variation. Ten seeds were selected randomly from each genotype to measure their quantitative characteristics, including grand and small diameter, weight, kernel weight and percentage and shell weight and thickness. The data were analysed, using the Nested Design Model. The results showed that there were significant differences between the genotypes for their quantitative characteristics. The genotypes from Marivan and Paveh were the superior for their highest kernel weight and percentage and their lowest shell weight and thickness. There were significant and positive correlations between average grand diameter with average small diameter, seed weight, kernel weight, shell weight and negative and significant correlation with average kernel percentage. The correlation between average small diameter and average seed weight, kernel weight and percentage, shell weight was positively significant. The correlation between average seed weight, and average kernel weight and percentage, shell weight and thickness was positively significant. There were significant and positive correlations between average kernel weight and average shell weight and kernel percentage. The correlation between average shell weight and average shell thickness was significant and positive, whereas its correlation with average kernel percentage was significant and negative. There is also significant and negative correlation between average shell thickness and average kernel percentage. The cluster analysis was applied to investigate the walnut populations’ similarity, based on the genotype seed characteristics. The most similar populations were from Saghez and Sanandaj sites.

Abstract licence: CC BY

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