내한성 강한 고품질 3배체 무핵 포도 ‘흑아롱’
A Triploid Seedless Grape Cultivar ‘Heukarong’ With High Marketable Fruit Quality and Strong Freezing Tolerance
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The triploid seedless grape cultivar ‘Heukarong’ was developed in 2002 throughartificial hybridization between ‘Black Olympia’ and ‘Campbell Early’ From 2003 to 2013,field trials were conducted under conventional cultivation practices in Chuncheon,Gangwon State, confirming that ‘Heukarong’ possesses strong resistance to both diseasesand frost without the need for special protective measures, thereby demonstrating hightolerance to both environmental and biotic stresses. Based on these findings, an intensivethree-year comparative evaluation of growth and fruit characteristics between ‘Heukarong’and the triploid cultivar ‘Sweet Dream’ was conducted beginning in 2014. The resultsshowed that ‘Heukarong’ consistently produced fruit with commercially valuable traits,leading to its final selection in late 2016 for varietal registration. Under standard cultivation,‘Heukarong’ can produce high-quality fruits averaging 436 g in weight with a soluble solidcontent of 19.4 °Brix through a single application of gibberellin at full bloom, making ithighly competitive in the market. Furthermore, ‘Heukarong’ exhibits strong resistance tofrost damage and berry cracking, indicating excellent adaptability and stable productivityeven under suboptimal growing conditions (Cultivar Registration No. 7766).
Abstract
The triploid seedless grape cultivar ‘Heukarong’ was developed in 2002 throughartificial hybridization between ‘Black Olympia’ and ‘Campbell Early’ From 2003 to 2013,field trials were conducted under conventional cultivation practices in Chuncheon,Gangwon State, confirming that ‘Heukarong’ possesses strong resistance to both diseasesand frost without the need for special protective measures, thereby demonstrating hightolerance to both environmental and biotic stresses. Based on these findings, an intensivethree-year comparative evaluation of growth and fruit characteristics between ‘Heukarong’and the triploid cultivar ‘Sweet Dream’ was conducted beginning in 2014. The resultsshowed that ‘Heukarong’ consistently produced fruit with commercially valuable traits,leading to its final selection in late 2016 for varietal registration. Under standard cultivation,‘Heukarong’ can produce high-quality fruits averaging 436 g in weight with a soluble solidcontent of 19.4 °Brix through a single application of gibberellin at full bloom, making ithighly competitive in the market. Furthermore, ‘Heukarong’ exhibits strong resistance tofrost damage and berry cracking, indicating excellent adaptability and stable productivityeven under suboptimal growing conditions (Cultivar Registration No. 7766).