Skip to Main content Skip to Navigation
Journal articles

Phenotyping oilseed rape growth-related traits and their responses to water deficit: the disturbing pot size effect

Abstract : Following the recent development of high-throughput phenotyping platforms for plant research, the number of individual plants grown together in a same experiment has raised, sometimes at the expense of pot size. However, root restriction in excessively small pots affects plant growth and carbon partitioning, and may interact with other stresses targeted in these experiments. In work reported here, we investigated the interactive effects of pot size and soil water deficit on multiple growth-related traits from the cellular to the whole-plant scale in oilseed rape (Brassica napus L.). The effects of pot size on responses to water deficit and allometric relationships revealed strong, multilevel interactions between pot size and watering regime. Notably, water deficit increased the root : shoot ratio in large pots, but not in small pots. At the cellular scale, water deficit decreased epidermal leaf cell area in large pots, but not in small pots. These results were consistent with changes in the level of endoreduplication factor in leaf cells. Our study illustrates the disturbing interaction of pot size with water deficit and raises the need to carefully consider this factor in the frame of the current development of high-throughput phenotyping experiments.
Document type :
Journal articles
Complete list of metadata

https://hal.inrae.fr/hal-02627132
Contributor : Migration Prodinra Connect in order to contact the contributor
Submitted on : Tuesday, May 26, 2020 - 7:13:25 PM
Last modification on : Wednesday, November 25, 2020 - 3:00:03 PM

Identifiers

Citation

Anaëlle Dambreville, Mélanie Griolet, Gaelle Rolland, Myriam Dauzat, Alexis Bediee, et al.. Phenotyping oilseed rape growth-related traits and their responses to water deficit: the disturbing pot size effect. Functional Plant Biology, CSIRO Publishing, 2017, 44 (1), pp.35-45. ⟨10.1071/FP16036⟩. ⟨hal-02627132⟩

Share

Metrics

Record views

98