Table Grape ‘Jinok’

Abstract

Additional index words. Vitis species, high quality, breeding 'Jinok' ('Delaware' • 'Campbell Early') is a new table grape cultivar showing earlyripening berries with uniform coloring of skin and high quality. 'Jinok' has a mean bud burst on 11 Apr., flowering on 24 May, and fruit maturity on 23 Aug. The mean berry weight is 6.0 g, and mean soluble solids are 16.6°Brix. The skin color is black with abundant bloom and the flesh firmness is soft and juicy. Origin'Jinok' resulted from a cross between and 'Delaware' (Vitis sp.) and 'Campbell Early' (Vitis labruscana) with the intention of producing high-quality table grapes with the flavor of 'Campbell Early' at the National Horticultural Research Institute (NHRI), RDA, Korea, in 1983. It was preliminarily selected in 1997, tested in seven sites from 1998 to 2004 as 'Wonkyo RA-12', and named in 2004. Three randomized plots with three vines were planted and tested to evaluate characters of vines and fruit production in each site for 3 years from 2002 to 2004. 'Jinok' has good quality with high total soluble solids (TSS) compared with 'Campbell Early', low titratable acidity, attractive black skin color, abundant bloom, and no skin cracking.

Table Grape ‘Suok’

“…'Suok', which means ''excellent gem'' in Korean, is the eighth table grape cultivar named by NHRI. It follows the release of 'Cheongsoo' (Lee et al, 1994), 'Hongdan' (Suh et al, 1995), 'Tamnara' (Park et al, 2004a), 'Heukgoosul' (Park et al, 2004b), 'Hongisul' (Park et al, 2006a), 'Heukboseok' (Park et al, 2006b), and 'Jinok' (Yun et al, 2008). 'Suok' may be used as a substitute for 'Kyoho' in grape cultivation in Korea as a result of its large-sized berries with high quality and several characteristics for facilitating vineyard management such as excellent coloring of skins and easy bearing habit.…”

Relationship between Cracking Occurrence and Growth or Fruit Characteristics in ‘Jinok’ and ‘Campbell Early’ Grapes

“…획일적 품종구성은 홍수출하에 의한 가격 하락을 조장하는데, 품종 국산화 및 다양화, 그 리고 품질향상을 위해 국내 신품종 육성 및 국외 품종 도입이 활발해지고 있는 상황이다. 이중 포도 '진옥'은 1983년 '델라웨어'에 '캠벨얼리'를 교배하여 2004년 최종 선발한 품종으로 '캠벨얼리'보다 당도가 높고 산함량이 적으며, 숙기가 약간 빠른 것으로 알려져 있다 (Yun et al, 2008). 하지만 품종 보급이 시작된 지 10년 이상이 경과되 었음에도 일부 재배자들에 의해 '캠벨얼리'보다 착립과 품질이 우수하다는 보고 이외에는 아직까지 품종특성에 대한 연구가 전무한 실정이다.…”