Extreme water stress and photosynthetic activity of the desert plant Artemisia herba-alba asso
- 1 January 1972
- journal article
- Published by Springer Nature in Oecologia
- Vol. 10 (2) , 177-182
- https://doi.org/10.1007/bf00347989
Abstract
During the dry season in the Negev desert (Israel) Artemisia herbaalba in its natural habitat has a very low water content. It shows values of negative hydrostatic pressure in the xylem down to -163 bars and an extreme of osmotic potential in the leaves of -92 bars. The diurnal water stress does not decrease strongly in the night. Under these conditions Artemisia is still photosynthetically active for a few hours of the day during the whole dry period.Keywords
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