Other
Scientific paper
Jan 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996adspr..18..273d&link_type=abstract
Advance in Space Research, Volume 18, Issue 4-5, p. 273-281.
Other
4
Scientific paper
Knowledge on air pressure impacts on plant processes and growth is essential for understanding responses to altitude and for comprehending the way of action of aerial gasses in general, and is of potential importance for life support systems in space. Our research on reduced air pressure was extended by help of a new set-up comprising two constantly ventilated chambers (283 L each), allowing pressure gradients of +/- 100 kPa. They provide favourable general growth conditions while maintaining all those factors constant or at desired levels which modify the action of air pressure, e.g. water vapour pressure deficit and air mass flow over the plants. Besides plant growth parameters, transpiration and CO_2 gas exchange are determined continuously. Results are presented on young tomato plants grown hydroponically, which had been treated with various combinations of air pressure (400 - 700 - 1000 hPa), CO_2 concentration and wind intensity for seven days. At the lowest pressure transpiration was enhanced considerably, and the plants became sturdier. On the other hand growth was retarded to a certain extent, attributable to secondary air pressure effects. Therefore, even greater limitations of plant productivity are expected after more extended periods of low pressure treatment.
Brinkjans H. J.
Daunicht H.-J.
No associations
LandOfFree
Plant responses to reduced air pressure: advanced techniques and results does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Plant responses to reduced air pressure: advanced techniques and results, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Plant responses to reduced air pressure: advanced techniques and results will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-968010