@article{fdi:010072793,
  title = {{R}ooting plasticity in wild and cultivated {A}ndean {C}henopodium species under soil water deficit},
  author = {{A}lvarez-{F}lores, {R}. and {A}nh, {N}. {T}. {T}. and {P}eredo-{P}arada, {S}. and {J}offre, {R}. and {W}inkel, {T}hierry},
  editor = {},
  language = {{ENG}},
  abstract = {{B}ackground and aims {R}ooting plasticity is critical for plants exploiting patchy soil-water resources, but empirical evidence remains controversial due to complex root/soil interactions in natural and agricultural environments. {W}e compared cultivated and wild {C}henopodium populations from distinct agroecological background to assess their rooting plasticity when exposed to contrasting wet-dry soil profiles in a controlled environment. {M}ethods {F}our treatments of increasing dryness were applied during 6 weeks in plants of {C}henopodium hircinum, {C}henopodium pallidicaule and two ecotypes (wet- and dry-habitat) of {C}henopodium quinoa grown in rhizotrons. {R}oot system architecture and growth were sequentially mapped. {A}t the end of the experiment, plant and root morphological traits and dry biomass were measured. {R}esults {C}ontrary to the other two species, {C}. quinoa showed accelerated taproot growth in dry soil conditions. {T}he dry-habitat {C}. quinoa ecotype showed consistently higher plant traits related to longer, coarser, and more numerous root segments which give it a faster taproot growth and sustained root branching at depth in dry soil. {C}onclusions {H}igh rooting plasticity confers the advantage of fast root elongation and deep soil exploration under soil water deficit. {V}ariation in intrinsic root traits and plastic responses among {C}henopodium populations controls their root foraging capacity facing patchy soil-water resources.},
  keywords = {{C}henopodium quinoa ; {C}. hircinum ; {C}. pallidicaule ; {R}oot architecture ; {R}hizotron ; {N}atural and human selection},
  booktitle = {},
  journal = {{P}lant and {S}oil},
  volume = {425},
  numero = {1-2},
  pages = {479--492},
  ISSN = {0032-079{X}},
  year = {2018},
  DOI = {10.1007/s11104-018-3588-7},
  URL = {https://www.documentation.ird.fr/hor/fdi:010072793},
}