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Carbon cost of root systems: an architectural approach
Journal article   Peer reviewed

Carbon cost of root systems: an architectural approach

Kai L. Nielsen, Jonathan P. Lynch, Andrei G. Jablokow and Peter S. Curtis
Plant and soil, v 165(1)
01 Jan 1994
DOI: https://doi.org/10.1007/BF00009972
Featured in Collection :   UN Sustainable Development Goals @ Drexel

Abstract

Architecture Biomass Carbon dioxide Exudation MODELLING Plant roots Plants Respiration Root growth Root systems Root tips
Root architecture is an important component of nutrient uptake and may be sensitive to carbon allocational changes brought about by rising CO₂. We describe a deformable geometric model of root growth, SimRoot, for the dynamic morphological and physiological simulation of root architectures. Using SimRoot, and measurements of root biomass deposition, respiration and exudation, carbon/phosphorus budgets were developed for three contrasting root architectures. Carbon allocation patterns and phosphorus acquisition efficiencies were estimated for Phaseolus vulgaris seedlings with either a dichotomous, herringbone, or empirically determined bean root architecture. Carbon allocation to biomass, respiration, and exudation varied significantly among architectures. Root systems also varied in the relationship between C expenditure and P acquisition, providing evidence for the importance of architecture in nutrient acquisition efficiency.

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105 citations in Web of Science
110 citations in Scopus

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UN Sustainable Development Goals (SDGs)

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#2 Zero Hunger

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Collaboration types
Domestic collaboration
Web of Science research areas
Agronomy
Plant Sciences
Soil Science
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