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    Determination of Vegetative and Fruit Characteristics of Some Thornless Blackberry Genotypes in Hatay (Turkey)
    (Taylor & Francis Inc, 2005) Ozdemir, Emine; Ayanoglu, Hamit; Gunudz, Kaz M.; Bayazit, Safder
    The experiments were carried out during 2002 and 2003 at the Department of Horticulture, Faculty of Agriculture, Mustafa Kemal University, Hatay, Turkey. In this study, some vegetative and fruit quality attributes of eight blackberry genotypes ('Jumbo', 'Chester Thornless', 'Black Satin', 'Navaho', 'Bursa 1', 'Bursa 2', 'Bursa 3', 'Bartin') were evaluated in 2002 and 2003. The greatest cane numbers and cane lengths were recorded for 'Bursa 2'. They were followed by 'Bursa 3' and 'Chester Thornless' in both years. Harvest periods ranged from 8 to 44 days and occurred from the middle of June until the end of August. 'Jumbo' and 'Bursa 1' were the earliest ripening cultivars. 'Bursa 2' had the longest harvest period. The highest yields were obtained from 'Bursa 1,' 'Bursa 2' and 'Chester Thornless.' 'Jumbo' had the largest fruits. The highest TSS/TA ratio was found in 'Navaho'. (C) 2005 by The Haworth Press, Inc. All rights reserved.
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    The effects of genotype and growing conditions on antioxidant capacity, phenolic compounds, organic acid and individual sugars of strawberry
    (Elsevier Sci Ltd, 2014) Gunduz, Kazim; Ozdemir, Emine
    In this study, the genotypic and environmental effects for bioactive compounds in strawberries were partitioned. 13 strawberry genotypes from diverse breeding programs were selected. The genotypes were grown in three growing conditions: greenhouse (GH), plastic tunnel (PT) and open-field (OF) for two growing seasons. The results indicated that the genotypes were significantly different for most of the characteristics tested except the ferric reducing ability assay (FRAP) and Trolox-equivalent antioxidant capacity assay (TEAC) in the second growing season, while the growing conditions were only significant for total phenolic content (TPC) and fructose and total sugar content in the first growing season. Genotype had 71% and 72% of the total variance for total monomeric anthocyanin contents (TMA), while it had only 12% and 13% of the variance for TPC in the first and second year of the experiment. Genotype effect was larger than that from the growing conditions for most of the bioactive component variables in the experiment indicated that breeding for bioactive components may be successful. (C) 2014 Elsevier Ltd. All rights reserved.
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    Effects of Short Day Conditioning, Chilling and GA3 Treatments to Yield and Fruit Quality in Strawberry Plug Transplants Aiming Early Fruit Production
    (Univ Agr Sci & Veterinary Med Cluj-Napoca, 2013) Ozdemir, Emine; Kaska, Nurettin; Gunduz, Kazim; Serce, Sedat
    In this study, we tested the effects of short day (SD), chilling (Ch) and gibberalic acid (GA(3)) treatments on the yield and fruit characteristics of 'Camarosa' and 'Sweet Charlie' plug plants under a freeze-protected greenhouse in Mediterranean conditions for two growing seasons in 2006-2007 and 2007-2008. The treatments included control (ambient day length and temperature); SD (8 h days) and ambient temperature, SD + Chilling (Ch) (18/12 degrees C day/night temperatures); SD + Ch (10 degrees C); SD + Ch (2 degrees C); and, GA(3) (10 ppm applied to the plants in November). In each growing season, the plug plants were planted in mid-August using bag culture. Yield, fruit weight, firmness, total soluble solids (SS), titratable acidity (TA), and SS/TA ratio were investigated. Considerable amounts of early yield (March and April) were recovered from 'Sweet Charlie'; 116 and 72 g/plant in the first and second growing seasons, respectively. 'Sweet Charlie' also had consistently higher total yield than 'Camarosa' (457 vs. 400 g/plant in the 2006-2007 season and 446 vs. 406 g/plant in the 2007-2008 season). Treatment did not have a consistent effect on the fruit quality traits measured. The results indicated that although SD conditioning, Ch and GA(3) treatments may have an effect on the total and early yield of strawberries, these effects may be cultivar-dependent and further regulated by environmental factors. Therefore, we propose that low-chilling varieties be utilized for early fruit production that can initiate flower buds in warmer, longer days.