Proceedings of the Korean Society of Crop Science Conference (한국작물학회:학술대회논문집)
- 2017.06a
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- Pages.198-198
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- 2017
Growth characteristics and variation in component of sweet potato (Ipomoea batatas) cultivars according to cultivation period
- Hwang, Eom-Ji (National Institute of Crop Science Bioenergy Crop Research Institute) ;
- Nam, Sang-Sik (National Institute of Crop Science Bioenergy Crop Research Institute) ;
- Lee, Joon-Seol (National Institute of Crop Science Bioenergy Crop Research Institute) ;
- Lee, Hyeong-Un (National Institute of Crop Science Bioenergy Crop Research Institute) ;
- Yang, Jung-Wook (National Institute of Crop Science Bioenergy Crop Research Institute) ;
- Go, San (National Institute of Crop Science Bioenergy Crop Research Institute) ;
- Paul, Naranyan Chandra (National Institute of Crop Science Bioenergy Crop Research Institute)
- Published : 2017.06.04
Abstract
Cultivated varieties of sweet potato were from dry texture type to tender texture type on the basis of consumer preferences. There are many differences in the quantity of sweet potato, starch content, pigment, and sugar content depending on the cultivation season and area, even in the same variety. Therefore, in this study, we attempted to establish optimum time of harvesting through growth characteristics and variation in component like starch, sugar, polyphenol and flavonoid. Four sweet potato varieties were used in this experiment. Among them, Jinhongmi (JHM) & Yulmi (YM) were as dry texture type and Pungwonmi (PWM) & Hogammi (HGM) were as tender texture type. Sweet potatoes were transplanted on 23 May, 2016 and were investigated storage root weight and component contents every 20 days from 60 days to 120 days and surveyed yield at 110, 120, 130 days after transplantation. Result revealed that storage root weight of YM, JHM, and HGM were 30.1, 38.9, 20.8 g respectively in 60 days after transplanting. Storage roots of PWM gerw faster with the weight of 88.2 g. In 120 days after transplanting, storage root weight varied from 88.3 to 118.7 g, HGM was the smallest, and PWM was the largest. Sugar contents of sweet potato ranged from 21.0 to