• 제목/요약/키워드: Very early wase

검색결과 2건 처리시간 0.017초

온주밀감 신품종 '상도조생' 특성 (Characteristics of New Satsuma Mandarin Cultivar 'Sangdojosaeng')

  • 박영철;오현우;강종훈;이중석;진석천;강상훈;강성근
    • 한국자원식물학회지
    • /
    • 제26권1호
    • /
    • pp.143-147
    • /
    • 2013
  • '상도조생'은 온주밀감 중에는 성숙기가 늦은 '좌좌목온주'의 가지변이로 선발된 품종이다. 1996년에 변이 발생이 확인되었고, 1998년에 1차로 선발되어 계통명 'JARES108'로 명명되었다. 2000년에 제주시와 서귀포시에 온주밀감 성목을 중간대목으로 접목을 실시하여 2003~2006년 4년 동안 특성을 조사한 결과, 우수성이 인정됨에 따라 최종적으로 선발하여 '상도조생'으로 명명하였다. '상도조생'은 10월 하순에 성숙하는 극조생온주밀감으로 수세는 극조생온주밀감 중에서는 강한편이고, 수형은 개장형이다. 성숙기는 원목인 '좌좌목온주'에 비해 25일 정도 빠른 10월 하순경이다. 제주에서 재배되고 있는 극조생온주밀감 중 성숙기, 수세, 과형, 과피색 등에서 가장 유사한 품종인 '상야조생'과 비교한 결과, '상야조생'에 비해 당도가 $0.6^{\circ}Bx$보다 높고, 산함량이 낮아 품질이 우수한 것으로 나타났다. '상도조생'은 '궁본조생', '산천조생', '시문조생' 등 품질이 낮은 극조생온주밀감 품종을 대체할 수 있을 것으로 기대하고 있다.

Symptomatology of Citrus mosaic sadwavirus (CiMV) in Some Citrus Cultivars and Effect of CiMV Infection on Citrus Fruit Quality

  • Hyun, Jae Wook;Hwang, Rok Yeon;Choi, Cheol Woo;Jung, Kyung Eun;Han, Seung Gab
    • The Plant Pathology Journal
    • /
    • 제36권1호
    • /
    • pp.106-110
    • /
    • 2020
  • Citrus mosaic sadwavirus (CiMV) is a closely related virus with the Satsuma dwarf virus (SDV) along with Navel orange infectious mottling virus (NIMV), Natsudaidai dwarf virus (NDV), and Hyugagatsu virus (HV). The present study found that the typical symptoms of CiMV-infected citrus fruits include the appearance of dark blue speckles or ringspots on fruit rinds and the browning of oil glands in the spots as rind coloring began. As rind coloring progressed, the spots gradually faded, whereas the browning of the oil glands worsened to the point that the tissues surrounding the oil glands became necrotic. In very early satsuma mandarins (Citrus unshiu 'Miyamoto Wase') and 'Setoka' cultivar (C. hybrid 'Setoka') of late-maturity citrus, the symptomatic fruits were eventually dropped. And in early satsuma mandarin (C. unshiu 'Miyakawa Wase'), the peel hardness of the virus-infected fruit (1,618.3 ± 305.5, g-force) was more than twice as hard as that of the healthy fruit (636.5 ± 39.1, g-force). The ratio of flesh weight to total fruit weight was higher for the healthy fruit (77.3 ± 1.7%) than for the infected fruit (70.7 ± 0.6) and peel puffing was more severe in the infected fruit (2.9 ± 0.4 mm) than in the healthy fruit (0.9 ± 0.2 mm). The soluble solids content in infected citrus fruits was less values than the healthy fruit by 0.5-1.5 °Brix. These findings reveal that CiMV infection on citrus trees reduces the fruit quality of citrus.