IDEAS home Printed from https://ideas.repec.org/p/ags/cfcs99/256927.html
   My bibliography  Save this paper

Response Of Sweetpotato Grown In Nutrient Film Technique (Nft) To Blue Light

Author

Listed:
  • Mortley, D. G.
  • Hill, J. H.
  • Bonsi, C. K.
  • Hill, W. A.

Abstract

An experiment was conducted in controlled environment chambers to evaluate the effect of varying levels of blue light on vine growth and storage root yield of sweetpotato [ I p o m o e a batatas (L.) Lam.] when grown in nutrient film technique (NFT). Cuttings of'TU-82-155" sweetpotato were grown under 6, 11, 16, 22.5, and 26% blue light (320-496 nm) supplied by high intensity discharge metal halide and high pressure sodium lamps. Total fresh mass was greatest for plants grown under 22.5 or 26% , and lowest for plants under 11% blue light. Total plant dry mass and storage root yield, however, were similar among treatments. Harvest index (storage root dry mass/total plant dry mass) was highest for plants grown under 26% blue light. Plants grown under 26% blue light tended to have a higher growth rate. Both vine and internode length tended to decline as the percentage of blue photons increased. These results indicate that storage root yield was not adversely affected by exposure to blue light as high as 26%, and that the main effect of blue light was to cause a reduction in vine length.

Suggested Citation

  • Mortley, D. G. & Hill, J. H. & Bonsi, C. K. & Hill, W. A., 1999. "Response Of Sweetpotato Grown In Nutrient Film Technique (Nft) To Blue Light," 35th Annual Meeting, July 25-31, 1999, Castries, St. Lucia, West Indies 256927, Caribbean Food Crops Society.
    • Handle: RePEc:ags:cfcs99:256927
    DOI: 10.22004/ag.econ.256927
    as

    Download full text from publisher

    File URL: https://ageconsearch.umn.edu/record/256927/files/1-24.pdf
    Download Restriction: no
    File URL: https://libkey.io/10.22004/ag.econ.256927?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:ags:cfcs99:256927. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: AgEcon Search (email available below). General contact details of provider: http://cfcs.eea.uprm.edu/ .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.