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Root-depth profiles of important agricultural crops

Metselaar, Klaas, Versace, Vincent L. and Feddes, Reinder A. 2009, Root-depth profiles of important agricultural crops, in RootRAP 2009 : Roots: research and applications : Proceedings of the 7th International Society of Root Research Symposium, International Society of Root Research, Reading, Eng., pp. 1-4.

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Title Root-depth profiles of important agricultural crops
Author(s) Metselaar, Klaas
Versace, Vincent L.ORCID iD for Versace, Vincent L. orcid.org/0000-0002-8514-1763
Feddes, Reinder A.
Conference name International Society of Root. Research Symposium (7th: 2009 : Vienna, Austria)
Conference location Vienna, Austria
Conference dates 2-4 Sept. 2009
Title of proceedings RootRAP 2009 : Roots: research and applications : Proceedings of the 7th International Society of Root Research Symposium
Publication date 2009
Start page 1
End page 4
Total pages 4
Publisher International Society of Root Research
Place of publication Reading, Eng.
Keyword(s) modelling
root length density
Summary Based on a literature review we describe root density profiles in terms of a logistic dose-response function for important global agricultural crops (wheat, maize, rice, barley, soybean, pulses, cotton, potato, sunflower, rye, rapeseed, and sugarbeet). These root density profiles can be used in 1-D macroscopic root water uptake models. For use in 1-D microscopic root water uptake models, we analyze root density data in terms of the half mean distance between roots. Based on the database there is little support for a predictive relationship between parameters of the root density distribution of agricultural crops and climate or management factors. Constancy of the shape of the root density distribution with time is shown not to hold in some experiments, but evidence is anecdotical. At present the basis to describe rooting profiles with depth only seems to allow profiles which are constant in time and with depth. The correlation between half mean distance and drought sensitivity is investigated and conclusions will be presented.
Language eng
Field of Research 119999 Medical and Health Sciences not elsewhere classified
Socio Economic Objective 929999 Health not elsewhere classified
HERDC Research category E3 Extract of paper
Copyright notice ©2009, International Society of Root Research
Persistent URL http://hdl.handle.net/10536/DRO/DU:30084213

Document type: Conference Paper
Collection: School of Medicine
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