FAS Abstracts 2004 Meeting Page

Environmental Chemistry & Chemical Sciences B & Poster (ENV): ENV-13

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The effect of light intensity on the growth of duckweed, Lemna Minor.  L. ANDERSON and D.F. MARTIN.  Institute for Environmental Studies, Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, FL 32620.  A variety of parameters affect plant growth.  Plants respond to light depending on intensity, wavelength, and illumination periods.  This study measured the growth of Lemna Minor under regulated conditions of light by three specific intensities originated from blue, green, and red plastic colored panels as limiting growth factor.  Periods of illumination occurred every twelve hours and the study was performed in periods of fifteen days.  Results showed that when these variables were controlled and applied to duckweed, the rate of growth was affected favoring those of red color of the spectral region.