Determination of Pomological and Morphological Characteristics with Fatty Acid Composition of High Kernel Ratio Walnut Genotypes

• Published in: Erwerbsobstbau 2016-03, Vol.58 (1), p.11-18
• Main Authors: Ünver, Hülya, Sakar, Ebru, Sülüşoğlu, Melekber
• Format: Article
• Language: English
• Subjects: Agriculture; Biomedical and Life Sciences; Color; Fatty acid composition; Fatty acids; fruit trees; Fruits; Genotypes; Juglans; Life Sciences; Linoleic acid; Linolenic acid; lipid content; Oleic acid; Original Article; Palmitic acid; Plant Sciences; protogyny; Seedlings; Sound; Stearic acid; surveys; Trees; Walnuts; Weight
• ISSN: 0014-0309; 1439-0302
• DOI: 10.1007/s10341-015-0249-3

In this selection survey that was performed to select the types with superior properties among the population of seedling walnut trees in Çankırı location, fruit samples were collected individually from 67 trees. Than these types were evaluated for fruit and tree properties and eight walnut types with fruit weight between 11.90 and 15.83 g, interior weight between 6.66 and 8.82 g, the interior ratio between 53.06 and 60.41 %, shell thickness between 1.21 and 1.50 mm were selected as promising. For these types the shell color was determined as dark in two types and tawny in six types. The inner color was found to be light yellow in four types and dark yellow in four types. The selected types were in a good condition for full and sound interior ratio. Seven types gave 100 % full and sound inner. Whereas one type gave 20 % empty fruit. Four types showed homogamous blooming, one types showed protandrous blooming and three types displayed protogynous blooming. The total oil content of selected types varied from 43.16 to 58.68 %. The range of fatty acid contents in the fruits of these types were also determined between 50.83 and 60.77 % for linoleic acid, between 16.14 and 26.44 % for oleic acid, between 5.42 and 7.29 % for palmitic acid, between 11.08 and 14.25 % for linolenic acid and between 1.70 and 2.55 % for stearic acid.