title: Extreme water stress and photosynthetic activity of the desert plant Artemisia herba-alba asso.
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.
authors.affiliation: Botanisches Institut II der Universität Würzburg, Germany.|Avdat Farm and Desert Research Center of the Hebrew University of Jerusalem, Israel.
authors.forename: L
authors.initials: L
authors.lastname: Kappen
authors.affiliation: Botanisches Institut II der Universität Würzburg, Germany.|Avdat Farm and Desert Research Center of the Hebrew University of Jerusalem, Israel.
authors.forename: O L
authors.initials: OL
authors.lastname: Lange
authors.affiliation: Botanisches Institut II der Universität Würzburg, Germany.|Avdat Farm and Desert Research Center of the Hebrew University of Jerusalem, Israel.
authors.forename: E -D
authors.initials: E-
authors.lastname: Schulze
authors.affiliation: Botanisches Institut II der Universität Würzburg, Germany.|Avdat Farm and Desert Research Center of the Hebrew University of Jerusalem, Israel.|Botany Department, Hebrew University, Jerusalem, Israel.
authors.forename: M
authors.initials: M
authors.lastname: Evenari
authors.affiliation: Botanisches Institut II der Universität Würzburg, Germany.|Avdat Farm and Desert Research Center of the Hebrew University of Jerusalem, Israel.
authors.forename: U
authors.initials: U
authors.lastname: Buschbom