Browsing by Author "Aksoy U."

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    Effect of yearly conditions and management practices on ochratoxin a production in sultana seedless vineyards
    (Taylor and Francis Ltd., 2012) Meyvaci K.B.; Aksoy U.; Eltem R.; Altindili A.; Akun T.; Takin E.
    Sun drying of seedless grapes (Vitis vinifera cv. Sultanina) is widely practised in the western Aegean Region providing Turkey with a significant share in the world trade of sultanas. Research was initiated in 1998 to determine the incidence of ochratoxin A (OTA), to identify the major factors resulting in contamination and to develop techniques to reduce or prevent contamination. This paper assesses OTA formation in five experimental vineyards located in Manisa province of Turkey between 1998 and 2003. The cultural practices recorded were tillage (type and timing), fertilisation, plant protection, irrigation, trellising, pruning, GA3 application, harvest maturity and date, and drying practices (type of drying yard, dipping into alkaline solution, length of drying period). In the experimental vineyards, no OTA was found at veraison. OTA levels in grapes harvested at fresh maturity ranged between
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    EFFECT OF ORGANIC FERTILIZATION ON FIG LEAF NUTRIENTS AND FRUIT QUALITY
    (2013) Mordoǧan N.; Hakerlerler H.; Ceylan Ş.; Aydin Ş.; Yaǧmur B.; Aksoy U.
    Turkish dried fig (Ficus carica L.) production plays a major role in the world trade due to its volume and quality. The production is generally realized from orchards on steep slopes under rain-fed conditions. Birgi-İrimaǧzi{dotless} in Ödemiş has peculiarities in respect to dried fig production. In this region, colluvial soils require additional late-winter irrigation by flooding especially in years because of inadequate winter rainfall. Organic dried fig production has gained importance since mid 1980s. The research work aimed at testing the effect of sheep and cow manure mixtures (at two different ratios: 1:1 and 2:1) on leaf and fruit nutrient contents, vigor, and fruit quality. The results proved that tree vigor and fruit quality were improved with the applied rates of farmyard manure, where as the effect on nutrient content of the leaf was not marked. © 2013 Copyright Taylor and Francis Group, LLC.