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Modification of yield and chlorophyll content in leaf lettuce by HPS radiation and nitrogen treatmentsThe potential of realizing high photosynthetic photon flux from radiation by high-pressure sodium (HPS) lamp, alone or in combination with metal halide (MH) plus quartz iodide (QI) incandescent lamps, to support lettuce grow, with or without nitrogen supplement, was investigated. It was found that varying exposures to radiation from combined HPS, MH, and QI lamps influenced dry weight gain and photosynthetic pigment content of hydroponically grown lettuce (Lactuca sativa L.) seedlings.
Document ID
19930060883
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Mitchell, Cary A.
(NASA Ames Research Center Moffett Field, CA, United States)
Leakakos, Tina
(NASA Ames Research Center Moffett Field, CA, United States)
Ford, Tameria L.
(Purdue Univ. West Lafayette, IN, United States)
Date Acquired
August 16, 2013
Publication Date
November 1, 1991
Publication Information
Publication: HortScience
Volume: 26
Issue: 11
ISSN: 0018-5345
Subject Category
Life Sciences (General)
Accession Number
93A44880
Funding Number(s)
CONTRACT_GRANT: NCC2-100
Distribution Limits
Public
Copyright
Other

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