Photoelectric device for recording of leaf movements

Details Photoelectric device for recording of leaf movements Photoelectric device for recording of leaf movements

May 1970

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1970slsci...2..109t&link_type=abstract

Space Life Sciences, Volume 2, Issue 1, pp.109-112

Physics

Scientific paper

A photoeletric device is described that may have usefulness for sensing rhythmic leaf movements of plants in space experiments. The system provides an instantaneous record of the precise angular change in position of the leaf blade and avoids physical attachment or disturbance of the plant. This system has been utilized to record leaf movements for several weeks. The device is sufficiently sensitive to record small rapid oscillations by the leaf of only 2° angular movement.

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