International Journal of
Physical Sciences

  • Abbreviation: Int. J. Phys. Sci.
  • Language: English
  • ISSN: 1992-1950
  • DOI: 10.5897/IJPS
  • Start Year: 2006
  • Published Articles: 2533

Full Length Research Paper

The effects of various drip fertigated water quantities on flavonoid and anthocyanin content on hydroponically cultivated Cucumis sativa L.

Donavon Sonnenberg1, Patrick A. Ndakidemi2 and Charles Laubscher1*
1Faculty of Applied Science, Cape Peninsula University of Technology, Cape Town Campus, Keizersgracht, P. O. Box 652, Cape Town 8000, South Africa. 2The Nelson Mandela African Institute of Science and Technology, School of Life Sciences and Bio-engineering, Nelson Mandela Rd, P. O. Box 447 Arusha- Tanzania.
Email: [email protected]

  •  Accepted: 19 April 2013
  •  Published: 23 May 2013

Abstract

The effects of various quantities of water were assessed on their potential to influence the content of flavonoid and anthocyanin contents in different tissues of cucumber plants grown hydroponically in the greenhouse. The treatments included supplying eight different water quantities 2, 4, 6, 8, 10, 12, 14 and 16 L/h. The plants received water five times a day, making it 10, 20, 30, 40, 50, 60, 70 and 80 L/day. The data from our study showed that flavonoid content was not significantly affected by different water quantities supplied to cucumber plants. However, the anthocyanin content in roots, leaves, and stem were significantly influenced by water levels. Lowest water quantity 2 to 6 L/h significantly increased the levels of anthocyanins in all tissues tested. Increasing water quantities to higher quantities significantly decreased the anthocynanin content in all tissues.

 

Key words: Phenolic compounds, secondary metabolites, Cucumis sativa L.