5th International Cherry Symposium, Bursa, Türkiye, 6 - 10 Haziran 2005, cilt.795 PART 2, ss.955-958, (Tam Metin Bildiri)
During a survey of the phytosanitary status of sweet (Prunus avium L.) and sour (P. cerasus L.) cherry trees for viroid diseases in Turkey, 127 plant samples were collected from 36 orchards including cultivar collections of mother blocks and commercial grown trees. All samples were tested for the presence of Hop stunt viroid (HSVd) using RT-PCR methods. Total nucleic acids were extracted from about 500 mg leaf tissue of each sample according to Astruc et al. (1996). As a result of RT-PCR tests, HSVd infection was detected in 21 samples. Of the 21 HSVd infected trees, 16 were sweet cherries (13.8% infection rate) and 5 were sour cherries (45.5% infection rate). The presence of HSVd infections in sweet and sour cherry trees represents a serious threat to the stone fruit industry of the country. Considering reported yield losses, it would be desirable to evaluate the impact of HSVd-infection on stone fruit production. This paper is the first report of HSVd in sweet and sour cherry in Turkey.