LZ3NSB3F

3374

20 avril 2021 11:02

20 avril 2021 11:02

The levels of fumonisins (FUMO)—mycotoxins produced by Fusarium verticillioides—in maize for food and feed are subject to European Union regulations. Compliance with the regulations requires the targeting of, among others, the agroclimatic factors influencing fungal contamination and FUMO production. Arvalis-Institut du végétal has created a national, multiyear database for maize, based on field survey data collected since 2003. This database contains information about agricultural practices, climatic conditions and FUMO concentrations at harvest for 738 maize fields distributed throughout French maize-growing regions. A linear mixed model approach highlights the presence of borers and the use of a late variety, high temperatures in July and October, and a water deficit during the maize cycle as creating conditions favoring maize contamination with Fusarium verticillioides. It is thus possible to target a combination of risk factors, consisting of this climatic sequence associated with agricultural practices of interest. The effects of the various possible agroclimatic combinations can be compared, grouped and classified as promoting very low to high FUMO concentrations, possibly exceeding the regulatory threshold. These findings should facilitate the creation of a national, informative and easy-to-use prevention tool for producers and agricultural cooperatives to manage the sanitary quality of their harvest.

None

• AB - Transversal
• FREDO lutte
• FREDO santé végétale
• GEO France
• climat
• pédo-climatique

• fusarium verticillioides
• agricultural practices
• climate
• fumonisins
• maize
• tool management
• water deficit

Toxins

13

214

2021/3

21 mars 2021

10.3390/toxins13030214 Le DOI est une URL unique de référencement d'une publication. Il est donc plus fiable et permanent qu'une URL classique