Radish (Raphanus sativus L.) is a species of the Brassicaceae family and an important root vegetable crop, produced worldwide. A total of 82 radish accessions with various morphological and physiological characteristics analyzed for total sugars content. These accessions includes five subspecies and classified as wild, wild-relative, traditional and improved cultivar. The four sugars, glucose, fructose, sucrose and maltose, showed various contents in 82 accessions. Total sugar content ranged from 5.64 to 46.68 ㎎/g and showed average 25.33 ㎎/g. Total sugar content was not statistically significant among the five subspecies, but individual sugar ratio varied. The wild, wild-relatives and traditional cultivars were not significantly among average total sugars content compared with improved cultivars. On the other hand, the wild and traditional cultivars were showed high ratio of individual sugars. These results could be valuable information for the development of new radish cultivars and regulation of sugars biosynthesis in radish.

Abstract
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• 김정선(국립농업과학원 농업생명자원부) | Jung Sun Kim (Department of Agricultural Biotechnology, National Academy of Agricultural Science, Rural Development Administration) 교신저자
• 박범석(홍익바이오(주)) | 박밤석
• 정준휘(국립농업과학원 농업생명자원부) | Joon-Hui Chung (Department of Agricultural Biotechnology, National Academy of Agricultural Science, Rural Development Administration)
• 서미숙(국립농업과학원 농업생명자원부) | Mi-Suk Seo (Department of Agricultural Biotechnology, National Academy of Agricultural Science, Rural Development Administration)