Research in Plant Disease 2004;10(2):145-149.
Published online June 30, 2004.
ACLSV(Apple chlorotic Leafspot virus) 감염이 사과 "홍로" 품종의 과실품질에 미치는 영향
김현란, 김정수, 황정환, 이신호, 최국선, 최용문
Influence of ACLSV-infection on Fruit Quality of "Hongro" Apples
Hyun Ran Kim, Jeong Soo Kim, Jeong Hwan Hwang, Sin Ho Lee, Gug Seon Choi, Yong Mun Choi
``Hongro`` is one of the most important apple cultivars whose growing area is increasing because of its good quality. Recently fruit shrinking symptom causing decrease of fruit size, juice, and quality, appears in some commercial ``Hongro`` orchards. The average frequency of occurrence of fruit shrinking symptom was 12% of total trees investigated and Apple chlorotic leaf spot virus (ACLSV) was detected from all the trees showing fruit shrinking symptom by ELISA. A typical virus infection symptom of leaf epinasty and stem necrosis appeared on woody indicators, Spy227 and Virginia crab grafted with infected trees and all the grafted trees showed positive reaction to ACLSV antiserum by ELISA. It was proved that ACLSV can be easily transmitted by grafting. ACLSV was also isolated from the leaves of C. quinoa inoculated with sprouting leaf sap of infected trees. To prove that the fruit shrinking symptom was caused by ACLSV infection, ACLSV-infected scion was grafted on virus-free ``Hongro/M9`` and the fruit characteristics were investigated. Consequently the same symptoms of fruit size and juice decreasing were observed from the trees grafted with ACLSV-infected scion. Therefore, it is suggested that the fruit shrinking symptom is caused by ACLSV infection and ``Hongro`` can be classified as sensitive cultivar to ACLSV.
Key Words: Aple, ACLSV, Fruit Quality, Hongro

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