Abstract
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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Bunning, E. and Moser, I.: 1966, ‘Response-Kurven bei der circadianen Rhythmik von Phaseolus’,Planta 69, 101–10.
Halaban, R.: 1968, ‘The Circadian Rhythm of Leaf Movement ofColeus blumei xC. frederici, a Short Day Plant. 1. Under Constant Light Conditions’,Plant Physiol. 43, 1883–86.
Hoshizaki, T. and Hammer, K. C.: 1964, ‘Circadian Leaf Movements: Persistence in Bean Plants Grown in Continuous High-Intensity Light’,Science,144, 1240–41.
Hoshizaki, T. and Yokoyama, K.: 1965, ‘Recording Leaf Movements with a Strain Gauge’,Nature 207, 880–81.
Pfeffer, W.: 1907, ‘Untersuchungen über die Entstehung der Schlafbewegungen der Blattorgane’,Abh. Kgl. sachs. Akad. Wiss. Leipzig, Math-physik. Kl. 30, 259–472.
Shigemura, Y. and Yokoyama, K.: 1967, ‘Automatic Recording Devices to Measure Bean Leaf Rhythm’,Plant Physiol. 42 (Suppl.), S-46.
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Tibbitts, T.W., Hoshizaki, T. & Alford, D.K. Photoelectric device for recording of leaf movements. Space Life Sciences 2, 109–112 (1970). https://doi.org/10.1007/BF00928958
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DOI: https://doi.org/10.1007/BF00928958