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http://dx.doi.org/10.12791/KSBEC.2014.23.4.356

Growth and Tuber Yield of Sweet Potato Slips Grown under Different Light-Emitting Diodes  

Lee, Na Ra (Institute of Life Science and Natural Resources, Wonkwang University)
Lee, Seung Yeob (Institute of Life Science and Natural Resources, Wonkwang University)
Publication Information
Journal of Bio-Environment Control / v.23, no.4, 2014 , pp. 356-363 More about this Journal
Abstract
This work was conducted to investigate the field growth and yield of the sweetpotato (Ipomoea batatas) slips grown under different light emitting diodes (LEDs). Sweet potato cuttings of 3 cultivars ('Matnami', 'Shinhwangmi', and 'Yeonhwangmi') were cultivated under fluorescent lamp (FL) and several LEDs (PPF $150{\pm}5{\mu}mol{\cdot}m^{-2}{\cdot}s^{-1}$ at 20cm distance) in deep flow culture system for 20 days. The plants were acclimatized under sunlight for 10 days, and then cuttings (30cm length) were planted with $75{\times}25cm$ planting density on June 10th, covered with black vinyl film during growth period. Length and diameter of vine, number of root were excellent in the red plus blue (7:3) LED than the other treatments. At 30 days after planting, the survival rate in red plus blue (7:3) LED was significantly higher than that in FL and red LED, and it was not different among cultivars. Vine length, vine diameter, and number of node were not significant among LED light qualities and cultivars. After 120 days in the field cultivation, vine length, vine diameter, number of node, number of branch, and fresh weight of shoot were not significant among LED light qualities, but those except the number of branch showed significant differences among cultivars. Yield characteristics among LED light colors were not significant, but weight of storage root per plant, mean weight of storage root, and yield showed significant differences among cultivars. The yield per 10a in 'Matnami', and 'Yeonhwangmi' was significantly higher than that in 'Shinhwangmi'.
Keywords
maketable yield; slip quality; survival rate; vine length;
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Times Cited By KSCI : 4  (Citation Analysis)
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