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Original research article

Effect of Cold Stress on the Content of Minerals and Water Soluble Vitamins in Spinach (Spinacia oleracea)
Young Eun Yoon1
,
Saranya Kuppusamy2
,
Song Yeob Kim2
,
Jang Hwan Kim1
,
Yong Bok Lee12*
1Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju 52828, Korea
2Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, Korea
* Corresponding Author
28 February 2019. pp. 11-19
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Abstract

To assess the effect of cold stress on the levels of minerals (C, N, P, K, Ca, Mg, Mn, Zn, Cu and Fe) and water soluble vitamins (B1, B2, B3, B5, B6, B9 and C) in spinach, an experiment was set up under greenhouse conditions and compared to field results. Levels of macro and micronutrients, except iron in spinach were unaffected by growth conditions and cold stress. The abundance of water soluble vitamins were most pronounced in greenhouse grown plants exposed to 14 and 21 days of cold stress. Significant increases in vitamin C (from 22.73 to 34.47 mg 100 g-1 dry matter) accumulation in stressed plants were observed, thus highlighting its role in plant defense mechanisms. Results indicate that cultivation of leafy vegetables in a greenhouse with low temperature (4 to 7°C) exposure for a shorter period (14 to 21 days) before harvest can improve the nutritional quality.

Water soluble vitamin (WSV) contents of field- and greenhouse-grown spinaches.

Keywords
Cold stress
Essential nutrients
Greenhouse
Spinacia oleracea
Vitamins

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Information
  • Publisher :Korean Society of Soil Science and Fertilizer
  • Publisher(Ko) :한국토양비료학회
  • Journal Title :Korean Journal of Soil Science and Fertilizer
  • Journal Title(Ko) :한국토양비료학회 학회지
  • Volume : 52
  • No :1
  • Pages :11-19
  • Received Date : 2019-01-12
  • Revised Date : 2019-02-26
  • Accepted Date : 2019-02-27
  • DOI :https://doi.org/10.7745/KJSSF.2019.52.1.011
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