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Water relations of seedlings of Scots pine grown in peat as a function of soil water potential and soil temperature

Örlander, Göran and Due, Karin (1986). Water relations of seedlings of Scots pine grown in peat as a function of soil water potential and soil temperature. Technical Report. Uppsala: UNSPECIFIED, Sveriges lantbruksuniversitet. Studia forestalia Suecica ; 175
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Abstract

Seedlings of Pinus sylvestris, grown in low humified peat, were exposed to different soil water potentials (?s) and soil temperatures. The water potential and temperature were controlled by the use of a semi-permeable membrane system, and the seedlings were placed in a growth chamber during the experiments. Needle water potential (?s), needle conductance (g,) and plant water conductance (Gp) were measured on the seedlings. When the soil water potential decreased to - 0.1 MPa, the g, decreased to about 25% of the maximum whereas the Gp decreased even more. The results are discussed in relation to resistance to water flow in the soil and in the root-soil interface. Soil temperature in an interval of 5-25°C did not markedly change the relative response of g, and Gp on (?s). However, water uptake was considerably lower at lower soil temperatures, Gp at 7°C only being about 30% of that at 25'C soil temperature. Water uptake was negatively affected by replanting in combination with drying the roots especially at low soil water potentials.

Authors/Creators:Örlander, Göran and Due, Karin
Title:Water relations of seedlings of Scots pine grown in peat as a function of soil water potential and soil temperature
Series/Journal:Studia forestalia Suecica (0039-3150)
Year of publishing :1986
Number:175
Number of Pages:13
Place of Publication:Uppsala
Publisher:Faculty of Forestry, Swedish University of Agricultural Sciences
ISBN for printed version:91-576-2713-4
ISSN:0039-3150
Language:English
Publication Type:Report
Full Text Status:Public
Subjects:Obsolete subject words > FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING > Plant production > Forestry
Keywords:Pinus sylvestris, soil water potential, soil temperature, needle water potential, needle conductance, plant water conductance
URN:NBN:urn:nbn:se:slu:epsilon-9-21
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-9-21
ID Code:4637
Faculty:S - Faculty of Forest Sciences
Deposited By: Skogsbiblioteket Umeå
Deposited On:12 Apr 2010 00:00
Metadata Last Modified:14 Dec 2015 15:03

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