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Light Spectral Quality Effects on the Growth of Potato (Solanum Tuberosum L.) Nodal Cuttings in VitroThe effects of light spectral quality on the growth of in vitro nodal cuttings of potato (Solanum tuberosum L.) cultivars Norland, Superior, Kennebec, and Denali were examined. The different light spectra were provided by Vita-Lite fluorescent (VF) (a white light control), blue fluorescent (BF), red fluorescent (RF), low-pressure sodium (LPS), and a combination of low-pressure sodium plus cool-white fluorescent lamps (LPS/CWF). For cultivars, stem lengths after 4 wks were longest under LPS, follow by RF, LPS/CWF, VF, and BF (in descending order). Microscopic studies revealed that cells were shortest when cultured in BF or VF environments, and were longest in RF or LPS lamp environments. The highest number axillary branches occurred on plantlets grown with LPS or LPS/CWF, whereas the lowest number occurred with BF. No leaf or stem edema (callus or gall-like growths) occurred iwth LPS or LPS/cwf lighting, and no edema occurred on cv. Norland plantlets, regardless of lighting. Results suggest that shoot morphologic development of in vitro grown potato plants can be controlled by controlling irradiant spectral quality.
Document ID
Acquisition Source
Kennedy Space Center
Document Type
Contractor Report (CR)
Wilson, Deborah A.
(Florida Inst. of Tech. Melbourne, FL United States)
Weigel, Russell C.
(Florida Inst. of Tech. Melbourne, FL United States)
Wheeler, Raymond M.
(Florida Inst. of Tech. Melbourne, FL United States)
Sager, John C.
(Florida Inst. of Tech. Melbourne, FL United States)
Date Acquired
August 19, 2013
Publication Date
January 5, 1993
Publication Information
Publication: In Vitro Cell Dev. Biol.
Volume: 29
ISSN: 1054-5476
Subject Category
Life Sciences (General)
Report/Patent Number
NAS 1.26:204214
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