Growth and Bioactive Compound Contents of Glehnia littoralis Fr. Schmidt ex Miquel as Affected by Different NaCl Concentrations and Treatment Timing on Nutrient Solution of Hydroponic System

Su Min Kwon; Hyeon Woo Jeong; Hye Ri Lee; Hyeon Gyu Jo; Hee Sung Hwang; Seung Jae Hwang

Growth and Bioactive Compound Contents of Glehnia littoralis Fr. Schmidt ex Miquel as Affected by Different NaCl Concentrations and Treatment Timing on Nutrient Solution of Hydroponic System

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수경재배 시스템에서 양액의 NaCl 농도 및 처리시기에 따른 갯방풍의 생육 및 생리활성화합물의 함량

Type: Academic journal

Author: Su Min Kwon (경상국립대학교) Hyeon Woo Jeong (경상국립대학교) Hye Ri Lee (경상국립대학교) Hyeon Gyu Jo (경상국립대학교) Hee Sung Hwang (경상국립대학교) Seung Jae Hwang (경상국립대학교)

Journal: The Korean Society For Bio-Environment Control Journal of Bio-Environment Control Vol.30 No.2 KCI Accredited Journals

Published: 2021.4

Pages: 101 - 109 (9page)

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Growth and Bioactive Compound Contents of Glehnia littoralis Fr. Schmidt ex Miquel as Affected by Different NaCl Concentrations and Treatment Timing on Nutrient Solution of Hydroponic System

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This study was conducted to investigate the effect of different NaCl concentrations and treatment timing on growth and bioactive compound content in Glehnia littoralis Fr. Schmidt ex Miquel. In the first experiment, seedlings were transplanted and grown during 30 days into a deep floating technique system (DFT system) on Hoagland solution (EC 1.5 dS·m<SUP>-1</SUP> and pH 6.5) with 40, 80, 120, 160, and 200 mM NaCl in a greenhouse. In the second experiment, G. littoralis was grown during 50 days into DFT system, and treated 50, 100, 150, and 200 mM NaCl at 5 and 10 days before harvest (DBH), respectively. In both experiments, non-treatment was set as the control. Plant growth and photosynthetic characteristic, total phenolic contents, total flavonoid contents, and antioxidant activity were measured. When NaCl concentration was higher than 80 mM, growth of G. littoralis Fr. Schmidt ex Miquel was decreased. In the second experiment, growth characteristics, such as number of leaves, leaf area, dry weights of shoot and root were the highest in the 50 mM NaCl with 10 DBH. The photosynthetic rate was observed the highest in the control and 50 mM treatments, and significantly decreased in the NaCl concentration of more than 100 mM regardless of NaCl treatment timing. In addition, visible leaf injury was observed in the NaCl concentrations of more than 100 mM. The total phenolic and flavonoid concentrations were the highest in the 200 mM with 5 DBH treatment. However, antioxidant activity was the highest in the control and 50 mM with 10 DBH treatment. In conclusion, these results suggest that the application of 50 mM NaCl with 10 DBH on nutrient solution will be effective for cultivation of high quality and bioactive compound content of G. littoralis in a hydroponic system.

#antioxidant activity #deep floating technique #photosynthetic rate #total flavonoid content #total phenolic content #광합성률 #담액식수경재배 #총페놀함량 #총플라보노이드함량 #항산화활성

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Amor N. B. / 2006 / Response of antioxidant systems to NaCl stress in the halophyte Cakile maritima / Physiol Plant 126:446~457

배정진 / 2003 / Atriplex gmelini(가는갯능쟁이)의 내염성과 항산화 효소 반응 / Journal of Ecology and Environment 26(5):8~280

Bernstein L / 1975 / Effects of salinity and sodicity on plant growth / Annu Rev Phytopathol 13:295~312

Bistgani Z. E. / 2019 / Effect of salinity stress on the physiological characteristics, phenolic compounds and antioxidant activity of Thymus vulgaris L. and Thymus daenensis Celak / Ind Crops Prod 135:311~320

Bolu W. H. / 2004 / Growth and stress reactions in roots and shoots of a salt-sensitive poplar species (Populus x canescens) / Trop Ecol 45:161~171

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