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  • Küçük Resim
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    Alternative postharvest treatments to control decay of table grapes during storage
    (Druckerei Liddy Halm, 2011) Candir, Elif; Kamiloglu, Onder; Ozdemir, Ahmet Erhan; Celebi, Semih; Coskun, Halil; Ars, Mehmet; Alkan, Serpil
    The aim of this study is to determine efficacy of some alternative postharvest treatments to sulfur dioxide (SO2) in maintaining quality and reducing fungal decay during cold storage of table grapes. The table grapes cv. Pafi was subjected to the following treatments after harvest: (1) Hot water dips at 24 degrees C, 45 degrees C, 50 degrees C or 55 degrees C for 3 min followed by packaging in perforated polyethylene (PPE) bags; (2) Packaging with ethanol vapor generating sachets of Antimold (R) 30 or Antimold (R) 60 in PPE bags; (3) Packaging with SO2 generating pad in PPE bags; (4) Packaging in PPE bags. Berries were stored at 0 degrees C for 3 months. Antimold (R) 60 sachet was more effective in reducing fungal decay than control and the SO2 generating pad treatment without adverse effect on quality parameters during 3 months of cold storage. Stem browning occurred at slightly higher level in grapes dipped in hot water or packaged with Antimold (R) 30 sachet and might limit their use, despite providing effective control of fungal decay.
  • Küçük Resim
    Öğe
    Molecular and pomological diversity among pomegranate (Punica granatum L.) cultivars in Eastern Mediterranean region of Turkey
    (Academic Journals, 2008) Durgac, Coskun; Ozgen, Mustafa; Simsek, Ozhan; Kacar, Yildiz Aka; Kiyga, Yelda; Celebi, Semih; Gunduz, Kazim
    Pomegranate (Punica granatum L.) is an important fruit species for Turkey where many cultivars are being cultivated. In this study, we determined the fruit characteristics and RAPD band patterns of six local cultivars from Hatay, Turkey. Our results demonstrated that there is a great level of morphological variation. The principle component analysis of 18 quantitative fruit characteristics revealed that fruit weight, aril number/fruit, peel color and soluble solids/acidity ratio are important traits for discriminating the cultivars tested. The UPGMA cluster of fruit characteristics indicated that 'Katirbasi' and 'Kan nari' were similar to each other and they were separated from rest of the cultivars. Twenty-two RAPD primers generated total of 106 reproducible bands 22% of which were polymorphic. The UPGMA dendrogram of RAPD data showed that 'Tatli nar' and 'Serife' were very closely related while 'incekabuk' is distinct from the other cultivars. As a result, discrepancies were detected between morphological and molecular data. Therefore, we confirmed that diversity among the fruit characteristics were not good indication of genetic relatedness while molecular tools are valuable to study such similarities.