Skip to main content
Journal cover image

Element concentrations in the xylem sap of Picea abies (L.) Karst. seedlings extracted by various methods under different environmental conditions.

Publication ,  Journal Article
Berger, A; Oren, R; Schulze, ED
Published in: Tree physiology
February 1994

We used a Scholander pressure chamber to assess the effects of various extraction methods under different environmental conditions on element concentrations in xylem sap of 3-year-old Picea abies (L.) Karst. seedlings. Sap from excised shoots contained higher element concentrations when extracted at low than at high over-pressures. When comparing plants differing in water status, we found that a high extraction over-pressure introduced a systematic error into the data. For example, in well-watered non-transpiring plants relative to unwatered transpiring plants, potassium concentrations were 70% higher in sap extracted at 0.1 MPa over-pressure, but only 10% higher in sap extracted at 1.0 MPa over-pressure. Moreover, treatment effects depended on the time of day when the sap was extracted. Increased water flux in transpiring plants relative to non-transpiring plants resulted in reduced xylem sap element concentrations when samples were collected after 9 h of transpiration, but not after 4 to 6 h of transpiration. Drought had little effect on xylem sap element concentrations, indicating that rates of element release into xylem conduits, element depletion by growing tissues, and water flow maintained a balance that may prevent nutrient stress during short-term drought.

Duke Scholars

Published In

Tree physiology

DOI

EISSN

1758-4469

ISSN

0829-318X

Publication Date

February 1994

Volume

14

Issue

2

Start / End Page

111 / 128

Related Subject Headings

  • Plant Biology & Botany
  • 4101 Climate change impacts and adaptation
  • 3108 Plant biology
  • 3103 Ecology
  • 0705 Forestry Sciences
  • 0607 Plant Biology
  • 0602 Ecology
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Berger, A., Oren, R., & Schulze, E. D. (1994). Element concentrations in the xylem sap of Picea abies (L.) Karst. seedlings extracted by various methods under different environmental conditions. Tree Physiology, 14(2), 111–128. https://doi.org/10.1093/treephys/14.2.111
Berger, A., R. Oren, and E. D. Schulze. “Element concentrations in the xylem sap of Picea abies (L.) Karst. seedlings extracted by various methods under different environmental conditions.Tree Physiology 14, no. 2 (February 1994): 111–28. https://doi.org/10.1093/treephys/14.2.111.
Berger, A., et al. “Element concentrations in the xylem sap of Picea abies (L.) Karst. seedlings extracted by various methods under different environmental conditions.Tree Physiology, vol. 14, no. 2, Feb. 1994, pp. 111–28. Epmc, doi:10.1093/treephys/14.2.111.
Journal cover image

Published In

Tree physiology

DOI

EISSN

1758-4469

ISSN

0829-318X

Publication Date

February 1994

Volume

14

Issue

2

Start / End Page

111 / 128

Related Subject Headings

  • Plant Biology & Botany
  • 4101 Climate change impacts and adaptation
  • 3108 Plant biology
  • 3103 Ecology
  • 0705 Forestry Sciences
  • 0607 Plant Biology
  • 0602 Ecology