Abstract
A new double cropping potato cultivar ‘Goun’ was developed by Highland Agriculture Research Center, NationalInstitute of Crop Science (NICS), RDA in 2007. This cultivar was obtained from the cross between ‘Chubaek’ and ‘Lemhi russet’in 1998. The seedling and line selections were performed from 1999 to 2000, preliminary and advanced yield trials were carriedout from 2001 to 2004, and the regional yield trials were conducted at three locations from 2005 to 2006. ‘Goun’ has whiteflower, green wide leaflet and petiole, short oval tuber with beige skin and white flesh. This cultivar has mid resistance tocommon scab and potato leaf roll virus. The dry matter content were 20.4 and 21.4% in spring and autumn season, respectively,which were similar with those of ‘Atlantic’ and higher than ‘Dejima’. Also, the potato chip color of ‘Goun’ was similar withthat of ‘Atlantic’ in spring and autumn season. The dormancy of ‘Goun’ was 60～70 days after harvest, which was 5～10 dayslonger than ‘Dejima’. The average yield of tubers in spring and autumn season were 33.2 and 26.3 ton/ha in the regional yieldtrials, which were 13% and 14% lower in spring and autumn season, respectively compared to ‘Dejima’. ’Goun’ can be usedfor the potato chip processing and table stock after autumn cultivation in potato double cropping area of Korea.
