Abstract
Faye, A., Dalpé, Y., Ndung'u-Magiroi, K., Jefwa, J., Ndoye, I., Diouf, M. and Lesueur, D. 2013. Evaluation of commercial arbuscular mycorrhizal inoculants. Can. J. Plant Sci. 93: 1201–1208. In order to improve the use of commercial inoculants, 12 arbuscular mycorrhizal fungi (AMF) inoculants were evaluated in a two-step experiment under greenhouse conditions using maize. First, commercial mycorrhizal inoculants were propagated in a trap pot culture experiment under sterilized sand to evaluate their potential for maize (Zea may L.) root colonization as compared with an indigenous soil inoculum and to survey the AMF species present in the products. Three inoculants significantly increased root colonization levels compared with a soil inoculum. Instead of 12 declared AMF species, 13 fungal strains were extracted from the pot culture survey, including five undeclared species, while four declared species did not produce spores. In a second experiment, commercial products were inoculated into soil to assess their impact on maize growth and yield. Six weeks after planting, seven inoculants increased root colonization levels compared with control soil, while only three inoculants increased slightly the shoot biomass of maize plants. These experiments highlight the need to pre-evaluate commercial mycorrhizal inoculants on a selected crop and regional soil before launching large-scale field use.
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Claims 6
Claim · model-written summary
Three commercial AMF inoculants significantly increased maize root colonization compared with a soil inoculum.
- Treatment
- arbuscular mycorrhizal fungi (AMF) inoculantse0
- Interactor
- arbuscular mycorrhizal fungie0symbiont
- Outcome
- root colonization levelse1
- Direction
- increasede1
- Comparator
- a soil inoculume1
- Setting
- greenhouse conditionse0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“12 arbuscular mycorrhizal fungi (AMF) inoculants were evaluated in a two-step experiment under greenhouse conditions using maize”
e1“Three inoculants significantly increased root colonization levels compared with a soil inoculum”
Claim · model-written summary
Of 12 declared AMF species, 13 fungal strains were extracted from the pot culture survey, including five undeclared species.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“12 arbuscular mycorrhizal fungi (AMF) inoculants were evaluated in a two-step experiment under greenhouse conditions using maize”
e2“Instead of 12 declared AMF species, 13 fungal strains were extracted from the pot culture survey, including five undeclared species, while four declared species did not produce spores”
Claim · model-written summary
Four declared AMF species did not produce spores in the pot culture survey.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“12 arbuscular mycorrhizal fungi (AMF) inoculants were evaluated in a two-step experiment under greenhouse conditions using maize”
e2“Instead of 12 declared AMF species, 13 fungal strains were extracted from the pot culture survey, including five undeclared species, while four declared species did not produce spores”
Claim · model-written summary
Seven commercial products increased maize root colonization compared with control soil six weeks after planting.
- Treatment
- commercial productse3
- Outcome
- root colonization levelse4
- Direction
- increasede4
- Qualifier
- Six weeks after plantinge4
- Comparator
- control soile4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“In a second experiment, commercial products were inoculated into soil to assess their impact on maize growth and yield”
e4“Six weeks after planting, seven inoculants increased root colonization levels compared with control soil, while only three inoculants increased slightly the shoot biomass of maize plants”
Claim · model-written summary
Three inoculants slightly increased shoot biomass of maize plants.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Six weeks after planting, seven inoculants increased root colonization levels compared with control soil, while only three inoculants increased slightly the shoot biomass of maize plants”
Claim · model-written summary
Commercial mycorrhizal inoculants should be pre-evaluated on a selected crop and regional soil before large-scale field use.
- Outcome
- pre-evaluate commercial mycorrhizal inoculants on a selected crop and regional soil before launching large-scale field usee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“12 arbuscular mycorrhizal fungi (AMF) inoculants were evaluated in a two-step experiment under greenhouse conditions using maize”
e5“These experiments highlight the need to pre-evaluate commercial mycorrhizal inoculants on a selected crop and regional soil before launching large-scale field use”
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