Extreme water stress and photosynthetic activity of the desert plantArtemisia herba-albaasso

✍ Scribed by L. Kappen; O. L. Lange; E. -D. Schulze; M. Evenari; U. Buschbom

• Book ID: 104733422
• Publisher: Springer-Verlag
• Year: 1972
• Tongue: English
• Weight: 286 KB
• Volume: 10
• Category: Article
• ISSN: 0029-8549
• DOI: 10.1007/bf00347989

✦ Synopsis

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.