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http://dx.doi.org/10.12791/KSBEC.2021.30.1.037

Effect of Super Absorbent Polymer on Germination and Growth of Safflower and Amaranth Sprouts  

Jang, Seong-Nam (Department of Horticultural Science, Gyeongnam National University of Science and Technology)
Lee, Ga-Oun (Department of Horticultural Science, Gyeongnam National University of Science and Technology)
Lee, Seung-man (L&C co., ltd.)
Yun, Jae Gil (Department of Horticultural Science, Gyeongnam National University of Science and Technology)
Shin, Hyunsuk (Department of Horticultural Science, Gyeongnam National University of Science and Technology)
Son, Ki-Ho (Department of Horticultural Science, Gyeongnam National University of Science and Technology)
Publication Information
Journal of Bio-Environment Control / v.30, no.1, 2021 , pp. 37-45 More about this Journal
Abstract
This study was conducted to evaluate the growth characteristics, phenolic concentration and antioxidant capacity of safflower (Carthamus tinctorius L.) and amaranth (Amaranthus spp.) sprout and investigate the possibility of using super absorbent polymer (SAP) as a medium in hydroponic cultivation in a plant factory. The control was used a commercial sprout cultivation tool (19 × 14 × 9 cm, W × D × L), and a treatment (SAP) was added on the cultivation tool to compare the effect of SAP. Safflower sprouts were immersed in a distilled water at 30 ℃ for 5 hours, and then grown in a plant growth chamber. The temperature and relative humidity were maintained at 25 ± 1℃ and 70 ± 4%, respectively. The light condition was maintained at 35 ± 6 μmol·m-2·s-1 (12h). Amaranth sprouts were grown in a plant growth chamber maintained with temperature of 25 ± 2℃, relative humidity of 70 ± 5% and light condition of 188 ± 10 μmol·m-2·s-1 (16h). A physical and chemical characteristic of SAP, and a germination rate, growth characteristics and secondary metabolites were analyzed in both safflower and amaranth. There was no significant effect on SAP in a germination rate, growth and secondary metabolites of safflower compared to the control, whereas amaranth grown under SAP was higher in germination rate, dry weight, phenolic concentration, and antioxidant capacity compared to the control. As a result, this study was suggested that cultivation of sprouts using SAP would be possible in a plant factory, and further studies on SAP on plant physiological response are required.
Keywords
antioxidant; phenols; plant factory; sprouts; super absorbent polymer;
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