@article{fdi:010062362,
  title = {{R}oot foraging capacity depends on root system architecture and ontogeny in seedlings of three {A}ndean {C}henopodium species},
  author = {{A}lvarez-{F}lores, {R}. and {W}inkel, {T}hierry and {A}nh, {N}. {T}. {T}. and {J}offre, {R}.},
  editor = {},
  language = {{ENG}},
  abstract = {{M}orphological and ontogenetic variation in root system architecture holds ecological significance, particularly in low-resource habitats where soil rooting is critical for both seedling establishment and water and nutrient uptake. {T}o assess this variation under contrasted agroecological backgrounds, root architecture and rooting patterns were compared in {A}ndean populations of {C}henopodium hircinum, {C}henopodium pallidicaule and two ecotypes (wet- and dry-habitat) of {C}henopodium quinoa. {S}eedlings were grown in rhizotrons under controlled water and nutrient availability. {R}oot branching and elongation dynamics were characterized during 6 weeks after germination, while leaf area, above and below-ground biomass, and specific root length were determined at the end of the experiment. {D}espite large differences in aboveground biomass, all populations showed similar herringbone root systems. {T}he dry-habitat {C}. quinoa had generally the highest root trait values, with fast taproot elongation, thick roots and long root segments resulting in high total root length and deep root proliferation. {I}rrespective of their contrasting agroecological background, the studied chenopods displayed a similar root system topology. {H}owever, from very early development stages, they showed differential root foraging patterns with two extremes: fast and vigourous rooting at depth in the dry-habitat {C}. quinoa, and shallow and thin root system in {C}. pallidicaule adapted to shallow-soil and high-altitude habitats.},
  keywords = {{C}henopodium quinoa ; {C}henopodium hircinum ; {C}henopodium pallidicaule ; {E}cotypes ; {R}hizotron ; {R}oot traits ; {R}oot system topology ; {CHILI} ; {BOLIVIE} ; {ANDES}},
  booktitle = {},
  journal = {{P}lant and {S}oil},
  volume = {380},
  numero = {1-2},
  pages = {415--428},
  ISSN = {0032-079{X}},
  year = {2014},
  DOI = {10.1007/s11104-014-2105-x},
  URL = {https://www.documentation.ird.fr/hor/fdi:010062362},
}