Browsing by Author "Lang, GA"

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An outbreak of cherry leaf spot ( blumeriella jaapii [rehm] arx.) on sweet cherry in Canakkale province, Turkey
(Int Soc Horticultural Science, 2008-01-01) Eris, A; Burak, M; Lang, GA; Gülen, H; Ipek, A; Tezcan, H.; TEZCAN, HİMMET; Bursa Uludağ Üniversitesi/Ziraat Fakültesi; Burak, M; Lang, GA; Gulen, H; Ipek, A
In the Biga district of Canakkale Province in Turkey, a commercial sweet cherry (Prunus avium L.) orchard established with trees imported from Italian nurseries had symptoms similar those caused by Blumeriella jaapii (Rehm) Arx. Nearly all of the trees were infected. The fungus was identified according to morphological taxonomy. The fungus produced acervuli, which contain conidiophores and conidia, on the lower surface of infected leaves. Conidia are hyaline, two celled, elongated and curved or flexuous. However, the asci and ascospores of the pathogen haven't been determined. The possible reasons for the outbreak and the effectiveness of some pathogen control methods are discussed. After one year, disease incidence decreased from 90% to 10%, with fungicidal control and the collection of diseased leaves on the ground with a special machine.
Assessment of genetic diversity and relationships among some sweet cherry cultivars using aflp™ markers
(Int Soc Horticultural Science, 2008-01-01) Burak, M.; Lang, GA; Gülen, H; Ipek, A; İpek, A.; Gülen, Hatice; Eriş, Atilla; Bursa Uludağ Üniversitesi/Ziraat Fakültesi.; Burak, M; Lang, GA; Gulen, H; Ipek, A; 0000-0001-7586-3108; AFW-5375-2022
Sweet cherry is an economically important crop in Turkey but the relationship among Turkish and foreign cherry cultivars has not been properly determined yet. In this study, amplified fragment length polymorphism (AFLP) has been utilized to analyze genetic diversity among 22 sweet cherry cultivars including some Turkish and foreign cultivars using total genomic DNA. Four EcoRI and MseI primer combinations with three base selective nucleotides extension generated 30 polymorphic AFLP fragments. A UPGMA dendrogram was constructed to demonstrate the genetic relationship among the sweet cherry cultivars. No two cultivars shared identical AFLP banding patterns, indicating all local Turkish cultivars were unique. UPGMA analysis clustered the sweet cherry cultivars analyzed in this study into four putative groups. For further characterization of Turkish sweet cherry, additional cherry cultivars will be analyzed using AFLP and SSR markers.
Determination of controlled atmosphere storage conditions for '0900 ziraat' sweet cherry fruit
(Int Soc Horticultural Science, 2008-01-01) Eris, A.; Burak, M; Lang, GA; Gülen, H; İpek, A; Akbudak, B.; Tezcan, H.; Eris, A; Bursa Uludağ Üniversitesi/Ziraat Fakültesi.; Burak, M; Lang, GA; Gulen, H; Ipek, A
The aim of this research was to determine the effects of combinations of low O-2 and high CO2 in the storage atmosphere on the storage quality of '0900 Ziraat' sweet cherry (Prunus avium L.). The fruit were placed in six different %CO2:%O-2 atmosphere combinations (0:21 [control], 5:5, 10:5, 15:5, 20:5, 25:5) at 0 +/- 0.5 degrees C and 90 +/- 5% relative humidity for up to 60 days. The fruit was stored more successfully in 20:5 and 25:5 treatments than in other treatments. Accordingly, it is recommended that the levels of CO2 for the storage of '0900 Ziraat' should be increased above 15% in CA storage.