No abstract

ÖZET teş Yanıklığı hastalığına dayanıklı armut tiplerinin belirlenmesini amaçlayan bu çalışmada, melez armut bireylerin Ateş Yanıklığı hastalığı etmeni Erwinia amylovora'ya karşı duyarlılık durumu suni inokulasyonla ortaya konmuştur. Bireylerin testlemesinde, 75 farklı E. amylovora izolatı içinden, elma ve armut sürgünlerinde yapılan patojenite testlerine göre virulensi yüksek olan 7 izolat seçilerek kullanılmıştır. Melez bireyler bu izolatların eşit oranda karışımlarından oluşan E. amylovora süspansiyonu ile Ağustos 2010 ve Mayıs 2011 tarihlerinde sürgün injeksiyonuyla iki kez inokule edilmiştir. Sürgün yanıklığı oranına göre yapılan değerlendirmede, testlenen 7495 melez bitkiden, %11,91'u "çok az duyarlı", %3,99'u "az duyarlı", %6,62'si "orta derecede duyarlı", %18,07'si "duyarlı" ve %59,41'i "çok duyarlı" grupta yer almıştır. Dayanıklı Magness çeşidinin ana ebeveyn olarak kullanıldığı kombinasyonlarda "çok az duyarlı" grupta yer alan birey sayısının yüksek olduğu görülmüştür. ABSTRACT n this study, susceptibility levels of different hybrid pear individuals were determined against fire blight disease agent Erwinia amylovora by artificial inoculations. According to the pathogenity tests of 75 different E. amylovora strains, made on apple and pear shoots, highly virulent 7 strains were used in the testing of the hybrids. E. amylovora suspension was prepared with equal mixes of these 7 selected strains. This suspension was inoculated to hybrid plants by shoot injections that carried out twice, in August 2010 and May 2011. According to the evaluations made through necrotic shoot rate, totaly 7495 hybrid seedlings inoculated, and 11,91% of them were "the least susceptible" 3,99% were "less susceptible", 6,62% were "moderately susceptible", 18,07% were "highly susceptible", 59,41% were "the most susceptible". More "the least susceptible" pear hybrids were obtained from the combinations of resistant Magness cultivar than the other combinations.

Abstract. Turkey is the world leader in the manufacture and export of seedless raisins. Requirement of golden bleached raisins is increasing in food Industry of especially cake, bread and pastry year by year. In this research, the lowest residual value and the practical realization of such production was intended to determine by drying grapes with application of sulphur. In this case, sulphur residue and colour situations were determined during 12-mounth-storage according to sulphur forms. In this study sulphur studies were applied by Vitis Vinifera cv. "Sultani Ç ekirdeksiz" with Na 2 S 2 O 5 , which is liquid source of sulphur and SO 2 , which is gas source of sulphur. SO 2 application were studied during 3, 6 and 8 hours and liquid form of sulphur is Na 2 S 2 O 5 that was used during by 10, 20 and 30 minutes. Applications were prepared with 3 replicates which contain 20 kg fresh grape in each replicate. In conclusion, changes in dried grape have been identified in point of colour (chroma and hue) and the sulphur content was determined according to sulphur forms in packing. Gas form of sulphur (SO 2 ) which was applied 3 hours, gave the best result during 12-mounth-storage for colour and sulphur residue.