Sürdürülebilir Kalkınma Amaçları
Yayınlar
- MakaleAçık Erişim2026Scopus SJRQ1Biochemical and Nutritional Profiling of Pistachio Genotypes Grafted Onto Pistacia khinjuk Rootstocks
Aglar, Erdal; Ozturk, Burhan; Uyak, Cuneyt; Dogan, Adnan; Tekin, Onur; Durmaz, Orhan; Alan, Davut; Ates, Umut
In the 2023 study, conducted in the Hizan District of Bitlis, aimed at determining the biochemical properties of pistachio trees grafted onto Pistacia khinjuk rootstocks, we identified 11 genotypes. Approximately 500 g of fruit were harvested from each genotype when the green fruit peel color started turning red, for use in the analyses. The various parameters were measured in the harvested fruits, including fruit size, yield, percentage of empty fruits, number of fruits per 100 g, splitting rate, moisture, ash, protein, fat, and mineral content. The fruit analyses revealed significant differences among the genotypes. The largest fruits were found in the G5 genotype, while the smallest were in the G9 genotype. Regarding yield, the highest ratio was observed in the G6 genotype with 46.63%, while the lowest was in the G10 genotype with 13.44%. The splitting rate, which varied by genotype, ranged between 0.97% and 41.88%. No statistical differences were observed in moisture and ash content among the genotypes, but protein content ranged from 18.01% to 28.49%, with the highest protein percentage recorded in the G9 genotype at 28.49%. Nutrient element analysis identified nitrogen (N), magnesium (Mg), calcium (Ca), and potassium (K) in the fruits. K emerged as the most abundant nutrient element across genotypes, followed by CA, magnesium (Mg), and sodium (Na). The G3 genotype exhibited the highest levels of potassium, calcium, magnesium, and manganese. In the fatty acid analyses, 9-octadecenoic acid was found to be the most abundant fatty acid, ranging between 40.5% and 66.7% across genotypes. Additionally, other fatty acids such as hexadecanoic acid, 9,12-octadecadienoic acid, and eicosanoic acid were also detected. These results indicated significant differences in the fatty acid content of the genotypes. As a result the pistachio genotypes examined in this study showed notable differences in terms of fruit yield, quality characteristics, and nutritional values. Particularly, G6 and G9 genotypes stood out with high yield and superior fruit qualities.
- MakaleAçık Erişim2026Scopus SJRQ1Pomological and Biochemical Properties of Rosehip (Rosa canina L.) Genotypes
Ertugrul, Edanur; Aglar, Erdal; Ozturk, Burhan; Tekin, Onur; Alan, Davut; Ates, Umut
Rosehip (Rosa canina L.) is an important wild fruit species valued for its high nutritional and functional properties, particularly its richness in vitamin C, phenolic compounds, and antioxidant activity. Despite the widespread natural distribution of rosehip in Türkiye, many local genetic resources remain insufficiently characterized, limiting their effective utilization in breeding, conservation, and cultivation programs. The present study was conducted to evaluate the morphological, pomological, and biochemical characteristics of naturally growing rosehip genotypes in the Central District of Tunceli and to identify superior genotypes with potential for future breeding and cultivation efforts. Ten rosehip genotypes collected from natural populations at altitudes ranging from 1178 to 1256 m were evaluated for fruit and seed characteristics, fruit color, soluble solids content, titratable acidity, vitamin C, phenolic compounds, flavonoids, anthocyanins, antioxidant activity, and organic acid composition. Significant differences were observed among genotypes for all examined traits. Fruit weight ranged from 1.00 to 1.81 g, soluble solids content from 45.40% to 51.90%, titratable acidity from 1.03% to 2.77%, and vitamin C content from 235.67 to 1126.30 mg/100 g. Total phenolic content, total flavonoid content, total monomeric anthocyanin content, FRAP, and DPPH antioxidant activity values also varied significantly among genotypes. Organic acid analysis revealed considerable variation, particularly in citric and malic acid contents. Principal component analysis explained 92.4% of the total variation and grouped the genotypes into two major clusters. Based on the overall evaluation, genotypes TK2, TK5, TK9, and TK10 exhibited superior performance for several desirable traits. The results demonstrate the substantial genetic diversity present in the natural rosehip populations of Tunceli and highlight their potential value for germplasm conservation, selection breeding, and sustainable cultivation programs.
