ch7rac: RAC Data for the Vectorized Root System of a Young Oak Tree

Description Usage Format Source References


For each observation date, this dataset obtained with Data Analysis of Root Tracings summarizes the length of each root constituting the vectorized root system of a young oak tree (Quercus robur L.) growing in a vertical rhizobox.




A data frame containing the following columns:

  • Root: the identification number of each root constituting the vectorized root system.

  • Mother: the parent root identification number (a first-order root having no parent root, its value in this column is set to -1).

  • Ord: the branching order (equal to 1 for the first-order root, 2 for a secondary root (or a first-order lateral root), 3 for a tertiary root (or a second-order lateral root), etc).

  • DBase: the distance between the branching point to the parent root base.

  • DApp: the date of emergence.

  • Lengths: the root length at each observation date (in pixels). The number of column "Lengths" is equal to the number of observation dates.



Pages L., Serra V. (1994) Growth and branching of the taproot of young oak trees - a dynamic study, Journal of Experimental Botany, 45, 1327–1334.

Le Bot J., Serra V., Fabre J., Draye X., Adamowicz S., Pages L. (2010) DART: a software to analyse root system architecture and development from captured images, Plant and Soil, DOI: 10.1007/s11104-009-0005-2.

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