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Das Bewegungsvermögen der Pflanzen: eine kritische Studie über das gleichnamige Werk, von Charles Darwin, nebst neuen Untersuchungen

Abstract

LIGHT as a Stimulus.—In “The Power of Movement ” (p. 458) we observed the heliotropic curvature of a number of seedlings placed at 2, 4, 8,12, 16, and 20 feet from a lateral light, and we came to the conclusion from inspection that the difference in heliotropic effect was not proportional to the intensity of light which the different sets of plants received. We think that this fact shows that light acts as a stimulus in causing heliotropism; if it acted in a simple physical manner the effects would bear some closer relation to the intensities of the causes.

Das Bewegungsvermögen der Pflanzen: eine kritische Studie über das gleichnamige Werk, von Charles Darwin, nebst neuen Untersuchungen.

Von Julius Wiesner. 8vo, pp. 212. Three Woodcuts. (Wien: Hölder, 1881.)

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DARWIN, F. Das Bewegungsvermögen der Pflanzen: eine kritische Studie über das gleichnamige Werk, von Charles Darwin, nebst neuen Untersuchungen . Nature 25, 597–601 (1882). https://doi.org/10.1038/025597b0

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