The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Hydraulic architecture of some diffuse-porous trees
Abstract
The rate of flow of a dilute KCl solution through sections of stem, branches, and twigs was measured and expressed in microlitres per hour, under conditions of gravity flow, per gram fresh weight of leaves supplied by that section of xylem. This is called leaf-specific conductivity (LSC). It is not uniform throughout the tree, LSC of the stem being higher than that of branches. Furthermore, vascular junctions, such as the path from stem to branch, represent hydraulic constrictions. Distribution of LSC in the tree is primarily based on varying vessel diameters. Vessel diameters increase from top to bottom in the tree stem. They are smaller in branches than in the main stem, and there is a distinct constriction of diameters at the base of each branch. Functionally this means that when transpiration begins the pressure has to drop more rapidly in the xylem of lower lateral leaves than in those at the top of the tree. It also means that under conditions of water stress peripheral parts of the tree are more vulnerable than the trunk.
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Cites
Sap Pressure in Vascular Plants: Negative hydrostatic pressure can be measured in plants.
Scholander, P. F., Bradstreet, E. D., Hemmingsen, E. A., & Hammel, H. T. (1965) · Science · doi:10.1126/science.148.3668.339 · Cited by 4,508
Cited by
Plant xylem hydraulics: What we understand, current research, and future challenges
Venturas, M. D., Sperry, J. S., & Hacke, U. G. (2017) · Journal of Integrative Plant Biology · doi:10.1111/jipb.12534 · Cited by 487
Elevated CO2and plant structure: a review
Pritchard, S. G., Rogers, H. H., Prior, S. A., & Peterson, C. M. (1999) · Global Change Biology · doi:10.1046/j.1365-2486.1999.00268.x · Cited by 462
Water transport in trees: current perspectives, new insights and some controversies
Meinzer, F. C., Clearwater, M. J., & Goldstein, G. (2001) · Environmental and Experimental Botany · doi:10.1016/s0098-8472(01)00074-0 · Cited by 293
Elk browsing increases aboveground growth of water-stressed willows by modifying plant architecture
Johnston, D. B., Cooper, D. J., & Hobbs, N. T. (2007) · Oecologia · doi:10.1007/s00442-007-0854-4 · Cited by 34
Metadata
- Authors
- Zimmermann, M. H.
- Venue
- Canadian Journal of Botany
- Publisher
- Canadian Science Publishing
- Published
- 1978-09-15
- Volume
- 56
- Issue
- 18
- Pages
- 2286-2295
- ISSN
- 0008-4026 (ISSN-L)
- OpenAlex
- W2108491137
- Cited by
- 522
- References
- 1
- FWCI
- 6.71
- Type
- journal article
- Language
- en
- Open access
- closed
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
