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Title

Influence of environmental factors on the ultradian rhythm of shoot movement in Phaseolus vulgaris L.

Authors
Millet, Bernard
Published in Journal of Interdisiplinary Cycle Research. 1991, vol. 22, no. 4, p. 325-332
Abstract A very simple and inexpensive device is described allowing continuous, environment independent measurement of the ultradian rhythm period of shoot movement. The ultradian rhythm is monitored by the interruption of a 940 nm light emitting diode generated light beam and a phototransistor. The results show that the period is constant under stable conditions, but is strongly dependent on temperature. Conversely, it is in dependent of short term (within 1 day) light conditions (presence or absence) and variations of relative humidity.
Keywords PlantPhotoperiodismTemperatureEnvironment
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DEGLI AGOSTI, Robert, MILLET, Bernard. Influence of environmental factors on the ultradian rhythm of shoot movement in Phaseolus vulgaris L. In: Journal of Interdisiplinary Cycle Research, 1991, vol. 22, n° 4, p. 325-332. doi: 10.1080/09291019109360117 https://archive-ouverte.unige.ch/unige:42811

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Deposited on : 2014-12-09

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