Browsing by Author "Yarilgac, T"

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Compositional Changes of Fatty Acids During the Development of Kernel of Yalova-1 and Yalova-4 Walnut Cultivars
(international Society Horticultural Science, 2001) Koyuncu, MA; Yarilgac, T; Kazankaya, A; Koyuncu, F; Küçük, M; Sen, SM
Changes of oil contents and fatty acids composition during the development of kernels of Yalova-1 and Yalova-4 walnut varieties were investigated. Samples were taken from trees by 20 days intervals in this period and analysed. Oil contents of cultivars increased as parallel to the kernel development. These increases were statistically significant (P <0.05). Palmitic (16:0) and stearic (18:0) acid contents have decreased as kernels develop. The decreases of palmitic acid contents were statistically significant, but stearic (P <0.05). Oleic (18:1) acid increased regularly and reached maximum level at the harvest date. Linoleic (18:2) and linolenic (18:3) acid contents decreased during the fruit development period. The changes of these acid contents were statistically significant except linoleic acid of Yalova-4 (P <0.05).
An Estimation of Genotypical Distances Based on Discriminatory Fruit Traits in Walnut (Juglans Regia)
(indian Counc Agricultural Res, 2005) Kara, K; Akca, Y; Balta, MF; Yarilgac, T; Balta, F
Lateral Fruitfulness on Turkish Standard Walnut Cultivars and Promising Selections (Juglans Regia L.)
(international Society Horticultural Science, 2001) Sen, SM; Balta, F; Koyuncu, MA; Koyuncu, F; Yarilgac, T; Kazankaya, A
Included in the species Juglans regia L. in Anatolia with rather rich walnut populations from seed origin, there are a lot of walnut cultivars and promising selections with high nut quality and lateral fruit bearing characteristic. When compared to commercial walnut cultivars of the world, the results from studies carried out in different places of Anatolia such as Marmara Region, Northeast Anatolia Region, East Black Sea Region, Eastern Mediterranean Coastal areas, the districts Darende, Gurun, Tokat, Cameli, Bozkurt, Adilcevaz, Catak, Ahlat, Adiyaman, Sanliurfa, Mardin, Gevas, Ermenek, Posof, Ikizdere, Bahcesaray and Yalova until today can be said to be promising. The researches concerning some cultivars and selections currently continue. This paper deals with the results in relation to lateral fruitfulness and valuable fruit characteristics of the cultivars and promising selections from different areas of Anatolia.
Physico-Chemical Characteristics of Peach Cultivars (Prunus Persica) at Different Harvest Times Under Van Ecological Conditions
(indian Counc Agricultural Res, 2003) Yarilgac, T; Balta, F
Some Nut Properties of Walnuts (Juglans Regia L.) of Edremit Country
(international Society Horticultural Science, 2001) Kazankaya, A; Koyuncu, MA; Koyuncu, F; Yarilgac, T; Sen, SM
This study was carried out between 1997 and 1998 in Edremit. As a result of evaluations, 38 selections were regarded as promising. Most selections had fruit weights over 11-12 g, kernel weights over 6-7 g, kernel percents over 45 and light colored kernels.
Some Promising Walnut Selections (Juglans Regia L.)
(international Society Horticultural Science, 2001) Yarilgac, T; Koyuncu, F; Koyuncu, MA; Kazankaya, A; Sen, SM
This study was carried out in the district of Gevas located in the Lake Van Region (East Anatolia) between the years of 1995 and 1998. In the study, it was aimed to determine the promising walnuts and to preserve as valuable genetic sources (Juglans regia L.) within existing population, all of which consisting of seedling trees. Thus, walnut preselections on which initial observations and evaluations were done before were investigated for long time so that they could be better illustrated. As a result of observations for four years, valuable selections were studied, and they were regarded as promising. Selections had nut weight between 10.38 and 17.04 g, kernel weight between 5.85 and 7.88 g, shell thickness between 0.86 and 1.75 mm, kernel percentage between 45.09 and 59.27 %, oil content between 55.74 and 68.52 %, and protein content between 16.21 and 21.86 %. In addition, nut dimensions, kernel color, lateral pistillate flowering percentages, and flowering characteristics etc. were also evaluated.