1. 경북지역 한지형 마늘 주산지인 의성지역을 중심으로 OYDV, LYSV, GCLV, SLV 그리고 Allexivirus를 진단한 결과, 모든 마늘잎의 시료가 한 가지 이상의 바이러스에 복합감염되어 있었다..
2. 생장점 배양한 마늘은 1세대부터 3세대까지 OYDV와 SLV는 전혀 검출되지 않았다. 생장점 배양 마늘의 1세대는 GCLV 3.8%, Allexivirus 3.1%의 바이러스 감염률을 나타내었으며, 생장점 배양 마늘 2세대는 LYSV 3.4%, GCLV 21.7% 그리고 Allexivirus 10.0%를 나타내었다. 생장점 배양 마늘 3 세대는 GCLV 17.5%, Allexivirus 7.5%의 바이러스 감염률을 나타내었다.
3. 의성지역의 바이러스에 감염된 일반마늘 1통의 평균 무게는 29.3 g 이었으나, 생장점 배양에 의하여 증식된 2세대 마늘 1통의 평균 무게는 57.6 g, 3세대 마늘 1통의 평균 무게는 66.2 g 이었다.
All conventional garlics cultivated at farmer’s fields were infected with various plant viruses such as Onion yellow dwarf virus (OYDV), Leek yellow stripe virus (LYSV), Garlic common latent virus (GCLV) and Allexivirus. The infection rate of these viruses in northern-type garlics was from 14% to 100% in Uiseong and Yecheon area. For producing virus-free garlic, meristem was removed from garlic plants and cultivated in Murashige & Skoog (MS) medium. No OYDV and Shallot latent virus (SLV) were detected on leaf of garlic from first generation to 3rd generation. Virus infection rates of 2nd generation of garlic plants grown in net houses were 3.4%, 21.7% and 10.0% for LYSV, GCLV and Allexivirus, respectively, and those of 3rd generation were 17.5% and 7.5% for GCLV and Allexivirus, respectively. The average weight of a bulb infected with viruses in Uiseong was 29.3 g but that of bulbs from meristem culture in 2nd and 3rd generations were 57.6 g 66.2 g, respectively, showing more than two times increase in bulb weight.