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231225s2002 xx |||||o 00| ||eng c |
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|a 10.1046/j.1469-8137.2002.00421.x
|2 doi
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|a eng
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|a Spicer, Rachel
|e verfasserin
|4 aut
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|a Compression wood has little impact on the water relations of Douglas-fir (Pseudotsuga menziesii) seedlings despite a large effect on shoot hydraulic properties
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|c 2002
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Revised 20.04.2021
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a • Compression wood has been shown to reduce stem permeability, but it is not known to what extent it affects leaf-level processes. Here, we report whole-plant hydraulic properties of Douglas-fir (Pseudotsuga menziesii) seedlings induced to form varying amounts of compression wood. • Seedlings were grown under three bending treatments to assess the impact of compression wood on hydraulic properties, including stomatal conductance (gs ), above-ground shoot conductance (Kl(abg) ), and both specific and leaf area-specific conductivity (ks and kl , respectively). • Kl(abg) was significantly lower (50% reduction) in severely bent seedlings than in controls. Similarly, both ks and kl of the main axis were significantly reduced (by 52% and 46%, respectively) in severely bent seedlings relative to controls. Seedlings in the moderate bending treatments had ks and kl that were intermediate between controls and severe bending. • Despite clear differences in above-ground shoot hydraulic properties, severely bent seedlings maintained the same water potentials as controls and had similar diurnal patterns of gs . This suggests that when the entire soil-plant-atmosphere continuum is considered, even a severe reduction in stem ks caused by compression wood has little impact on leaf-level processes
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|a Journal Article
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|a compression wood
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| 650 |
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|a hydraulic architecture
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|a hydraulic conductivity
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| 650 |
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|a reaction wood
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| 650 |
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|a stomatal conductance
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|a Gartner, Barbara L
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 154(2002), 3 vom: 20. Juni, Seite 633-640
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
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|g volume:154
|g year:2002
|g number:3
|g day:20
|g month:06
|g pages:633-640
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|u http://dx.doi.org/10.1046/j.1469-8137.2002.00421.x
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