Photosynthesis in eucalyptus studied by the Open Photoacoustic technique: Effects of irradiance and temperature
Source: Acoustical Physics, Volume 47, Number 1, January 2001 , pp. 16-21(6)
Publisher: MAIK Nauka/Interperiodica
Abstract:This work demonstrates the usefulness of the Open Photoacoustic Cell Technique to study the effects of irradiance and temperature on photosynthesis. In vivo and in situ photosynthetic induction measurements were performed in three different species of eucalyptus plants (E. grandis, E. urophylla, and E. urograndis) previously dark-adapted at different temperatures. Photosynthetic activity curves were built as a function of light intensity, indicating the occurrence of photosynthesis saturation. E. urograndis presented higher photosynthetic activity than the other species, especially at low temperature, indicating its tolerance to stress conditions. The incidence of background saturation light of various intensities allowed the in situ study of photoinhibition in eucalyptus plants through open photoacoustics.
Document Type: Research Article
Publication date: January 1, 2001