Browsing by Author "Yarilgaç, T"

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An Evaluation on Yield Potential in Walnut (Juglans Regia L.)
(international Society Horticultural Science, 2000) Yarilgaç, T; Sen, SM; Balta, F; Kazankaya, A
In this study, yield potentials of Juglans regia selections were determined during two years 1996 and 1997 in the district Van (Turkey). A formula based on productions (%) and average numbers of pistillate flowers on terminal and lateral shoots was used. For this aim, yield index scores belonging to promising selections in terms of fruit characteristics were calculated. Yield potentials were classified in four groups low, middle, good and very good based on these scores. Consequently, five selections were considered as very good for yield potential.
Fruit Characteristics of Native Almond Selections From the Lake Van Region (Eastern Anatolia, Turkey)
(Amer Pomological Soc, 2001) Balta, F; Yarilgaç, T; Balta, MF
The research was conducted in the Lake Van Region during 1997 and 1998. The research evaluated selections of natural almond population grown from seed on Island Adlr (Van) in Lake Van. Approximate 400 seedling trees were investigated and, data from 13 selections were recorded in terms of fruit characteristics for two years. For all selections, full blooming season occurred in late April and harvest season in late August. In-shell fruit weights changed between 2.74 g and 6.80 g. Kernel weights ranged from 0.64 g to 1.32 g. The kernel percentage varied 18.4% to 29.2% and double kernel percentage was 0% and 60%. The shell thickness varied from 0.27 cm to 0.43 cm.
Physical and Chemical Attributes of Peach Cultivars Grown Under Ecological Conditions in Van
(Eugen Ulmer Gmbh Co, 2004) Yarilgaç, T; Balta, F; Balta, MF; Muradoglü, F; Sen, SM
This study was carried out to determine fruit characteristics at different harvest periods of 'Halehaven', 'Dixired', 'Glohaven', jeferson', 'J.H. Hale', 'Redhaven','Earlyred',`June Gold' and 'Blake'peach cultivars grown under ecological conditions in Van province during 1999 and 2000, and also to estimate their suitable harvest times. Fruits were harvested at five days intervals in 1999, and at three days intervals during 2000. In the cultivars, phenological properties, physical traits and chemical analyses were determined for two years. Fruit weights varied to cultivars, harvest times and years. In 2000, 'J.H. Hale' (94.0 g), 'Blake' (86.2 g), 'Redhaven' (79.2 g) had the highest fruit weights. In 1999, fruit weights in the majority of cultivars were lower than those in 2000. In both years,'Earlyred' had the highest total soluble solid content: 17.2 % in 1999 and 19.2 % in 2000. This cultivar was followed by 'Redhaven' with 16.2 % and 'Dixired' with 16.2 % in 1999. The soluble solid contents were lower than those of the first year, depending on cultivars and on harvest times. Titratable acidity varied from 0.14 % ('Dixired', 1999) to 0.88 % ('Halehaven', 1999). In both years, harvest time for 'Earlyred' was earlier than that of other cultivars.
Promising Apricot Genetic Resources From the Lake Van Region
(Kluwer Academic Publ, 2002) Balta, F; Kaya, T; Yarilgaç, T; Kazankaya, A; Balta, MF; Koyuncu, MA
This study was conducted in order to select valuable genetic resources (Prunus armeniaca L.) of apricot in Gevas, situated on Lake Van Region (East Anatolia) of Turkey during 1998 and 1999. All population consisted of native apricot genotypes were examined with respect to fruit and tree characteristics for two years, and twenty-eight genotypes were selected for future breeding efforts. Their flowering habit and desirable fruit characteristics were determined in comparison with 'Hacihaliloglu'. All selected apricots grown at 1700 m in the region were not affected by late spring frosts. In the majority of genotypes, bud break, first flowering, full flowering and end of flowering occurred a few days earlier than the cultivar 'Hacihaliloglu' in both years, whereas, harvest was later than that. Some selections produced larger fruits than 'Hacihaliloglu'. All genotypes showed a range of 25-48 g for fruit weight, 11-21% for soluble solids and 0.19-2.90% for acidity. Soluble solids content was more than 20% in three selections (G12, G29 and G33), and the acidity was lower than 1% in five genotypes (G2, G12, G27, G29 and G33). Selections with attractive fruit colors had small to medium-sized fruits. Many genotypes were evaluated as promising for further breeding efforts.