Browsing by Author "Bostan, S.Z."

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Investigation on Nut Development in Hazelnuts and Determination of Nut Characteristics and Variation Within Cultivars in Some Hazelnut Cultivars
(International Society for Horticultural Science, 1997) Bostan, S.Z.; Islam, A.; Şen, S.M.
This research was carried out onTombul, Kalmkara and Sivri hazelnut cultivars grown in Ordu and this study was consisted of 2 chapter. First chapter, nut length and width development of these cultivars were investigated in a hazelnut plantation involving these varieties. In the result, the width development was determined as 1, 921 cm, 1, 760 cm and 1, 621 cm, respectively; the length development was determined as 1, 930 cm, 1, 949 cm and 1, 835 cm respectively. Between plants and weeks were determined significant differences. In the second chapter, nuts were picked from average 35 hazelnut plantations in center and village. In these cultivars, nut weight, shell thickness, kernel weight and kernel ratio were determined as 1.552-2.662 g, 0.71-1.0 mm, 0.972-1.410 g, 50.51-65.06 %; 1.750-3.174 g, 0.66-1.09 mm, 0.184-1.709 g, 46 51-60.74 % and 1.669-2.605 g, 0.65-1.04 mm, 0.851-1.400 g, 48.53-56.34 %, respectively. In addition, coefficients of variation for nut weight, kernel weight and kernel ratio in cultivars were 10.05, 8.10, 5.73 %; 13.52, 14.17, 5.50 % and 10.24, 10.11, 3.86 %, respectively.
Kernel Sugar Components of Turkish and Foreign Apricot (Prunus Armeniaca L.) Varieties
(Chemical Publishing Co., 2008) Yarilgaç, T.; Bostan, S.Z.; Karadeniz, T.; Balta, M.F.
This study involves in determining kernel sugar contents of Turkish apricot varieties (Kabaasi, Sakit, Alyanak, Tokaloglu, Salak, Hasanbey, Hacihaliloglu and Sekerpare) and foreign apricot varieties (Paviot, Colomer and Thyrinte) grown in Van (eastern Anatolia, Turkey). The sugar contents of kernels were detepted by HPLC. The main sugar was sucrose in the majority of apricot varieties. Kernels of Turkish varieties contained 2.20-5.30 g/100 g sucrose, 0.40-3.40 g/100 g maltose, 0.90-3.64 g/100g glucose and 0.57-5.58 g/100 g fructose. Sugar contents of seeds belonging to foreign varieties were 3.30-4.67 g/100 g sucrose, 1.50-2.52 g/100 g maltose, 3.38-3.72 g/100 g glucose and 1.86-2.93 g/100 g fructose. Sugar contents significantly, differed by varieties. In addition, positive correlation coefficients were computed among kernel sugars.