LASER PHOTOACOUSTICS: A NOVEL METHOD FOR ETHYLENE DETERMINATION IN PLANT PHYSIOLOGICAL STUDIES.

Ernst J. Woltering, Dane D. Bicanic, F. Harren
A CO2 laser-based photoacoustic method was used to determine the initial changes in ethylene production following emasculation of selected orchid species.

The laser photoacoustic equipment consisted of a line tunable CO2 laser in conjunction with a single pass resonant acoustic cell. The minimum detection limit of the system for ethylene was 0.03 nl/1.

In all tested orchid species an increase in ethylene production was measured within a few hours after emasculation. The time dependent pattern of ethylene production in Cymbidium and Oncidium showed an optimum. In Phalaenopsis and Epidendrum it was characterized by a gradual increase.

The principle of photoacoustics and its application in plant physiological studies is discussed.

Woltering, Ernst J., Bicanic, Dane D. and Harren, F. (1989). LASER PHOTOACOUSTICS: A NOVEL METHOD FOR ETHYLENE DETERMINATION IN PLANT PHYSIOLOGICAL STUDIES.. Acta Hortic. 261, 201-208
DOI: 10.17660/ActaHortic.1989.261.25
https://doi.org/10.17660/ActaHortic.1989.261.25

Acta Horticulturae