@article{fdi:010086746,
  title = {{F}ield arbuscular mycorrhizal inoculation increased plant performance without phosphorus fertilizer supply of four promoted upland rice varieties in {M}adagascar},
  author = {{N}jaramanana, {N}. {M}. {R}. and {R}ahetlah, {V}. {B}. and {T}rap, {J}ean and {A}utfray, {P}.},
  editor = {},
  language = {{ENG}},
  abstract = {{I}n {M}adagascar, upland rice cropping is constrained by soil acidity and low phosphorus ({P}) bioavailability. {G}iven their role in plant {P} nutrition, arbuscular mycorrhizal fungi ({AMF}) may improve crop yield in nutrient-poor tropical soils. {I}n the {V}akinankaratra region, a field experiment was conducted at 908 m asl on an acidic {F}erralsol during the 2019-2020 growing season. {T}he aim was to test the ability of four promoted rice varieties to respond to {AMF} seed-coating inoculation with a commercial strain of {R}hizophagus irregularis in the absence or presence of {P} fertilizer (20 kg ha(-1) of {P}2{O}5) under no expected nitrogen ({N}) limitation. {I}n absence of {P} fertilization, both at tillering and at maturity and irrespective of the rice varieties, {AMF} inoculation significantly improved plant performance and finally grain yield, grain {N}, and grain {P} amounts by an average of 28%, 30%, and 39%, respectively. {I}n contrast, when {P} fertilizer was supplied, no significant effect of {AMF} inoculation was observed. {R}ice growth variables were significantly higher with the application of {P} fertilizer than with {AMF} inoculation both at tillering and at maturity. {P} fertilizer without inoculation provided an average grain yield improvement of 85%. {A}t tillering, mycorrhizal parameters for root colonization assessment were not positively linked with rice growth variables suggesting an early effect of {AMF} inoculation. {W}e concluded that, with no {P} fertilization, {AMF} seed coating inoculation at the field scale significantly improved upland rice plant performance in a limited soil {P} environment. {O}ur rice genetic variability did not interfere significantly both with mycorrhizal parameters and crop {AMF} inoculation benefits.},
  keywords = {{A}cidic soil ; {P}hosphorus deficiency ; {O}ryza sp ; {P}lant nutrition ; {S}eed inoculant ; {R}hizophagus irregularis ; {R}oot colonization ; {MADAGASCAR}},
  booktitle = {},
  journal = {{E}xperimental {A}griculture},
  volume = {58},
  numero = {},
  pages = {e57 [14 p.]},
  ISSN = {0014-4797},
  year = {2022},
  DOI = {10.1017/s0014479722000527},
  URL = {https://www.documentation.ird.fr/hor/fdi:010086746},
}