Biofumigation to protect oilseed crops: focus on management of soilborne fungi of sunflower☆
Sunflower (Helianthus annuus L.) is one of the three most productive oilseed crops worldwide. Soilborne diseases limit yields and are challenging to manage. The fungi Verticillium dahliae, Sclerotinia sclerotiorum and Macrophomina phaseolina can survive in the soil for many years and spread. Followi...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2020-01-01
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| Series: | Oilseeds and fats, crops and lipids |
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| Online Access: | https://www.ocl-journal.org/articles/ocl/full_html/2020/01/ocl200034/ocl200034.html |
| _version_ | 1818665038610694144 |
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| author | Ait-Kaci Ahmed Neïla Dechamp-Guillaume Grégory Seassau Célia |
| author_facet | Ait-Kaci Ahmed Neïla Dechamp-Guillaume Grégory Seassau Célia |
| author_sort | Ait-Kaci Ahmed Neïla |
| collection | DOAJ |
| description | Sunflower (Helianthus annuus L.) is one of the three most productive oilseed crops worldwide. Soilborne diseases limit yields and are challenging to manage. The fungi Verticillium dahliae, Sclerotinia sclerotiorum and Macrophomina phaseolina can survive in the soil for many years and spread. Following the ban on fumigants, biofumigation, which consists of growing, chopping and incorporating a Brassicaceae cover crop to allow biocidal compounds production in the soil, may be an alternative. Biocidal effects of the hydrolysis of glucosinolate into active compounds, such as isothiocyanates, have been shown in laboratory studies, but the effectiveness of biofumigation varies more in the field. The present study reviews the main factors that determine effective biofumigation to protect sunflower. Since the toxicity of isothiocyanates to pathogens varies widely among the latter, we reviewed studies that assessed the suppressive effect of products of glucosinolate hydrolysis on V. dahliae, S. sclerotiorum and M. phaseolina. Farmers can use many mechanisms to increase isothiocyanate production, which may protect sunflower crop effectively. Increasing biomass production and chopping the cover crop during mild temperatures and before rainy periods could increase biofumigation effectiveness. Further field experiments are needed to confirm the potential of biofumigation to control soilborne diseases of sunflower and assess potential disservices to beneficial soil communities, given their potential key role in the control of soilborne pathogens. |
| first_indexed | 2024-12-17T05:42:17Z |
| format | Article |
| id | doaj.art-f7b7dbca387041909d46e60fd0a8884f |
| institution | Directory Open Access Journal |
| issn | 2272-6977 2257-6614 |
| language | English |
| last_indexed | 2024-12-17T05:42:17Z |
| publishDate | 2020-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | Oilseeds and fats, crops and lipids |
| spelling | doaj.art-f7b7dbca387041909d46e60fd0a8884f2022-12-21T22:01:24ZengEDP SciencesOilseeds and fats, crops and lipids2272-69772257-66142020-01-01275910.1051/ocl/2020052ocl200034Biofumigation to protect oilseed crops: focus on management of soilborne fungi of sunflower☆Ait-Kaci Ahmed Neïla0Dechamp-Guillaume Grégory1https://orcid.org/0000-0002-4999-6975Seassau Célia2https://orcid.org/0000-0003-0937-3455Université de Toulouse, INRAE, UMR AGIRUniversité de Toulouse, INRAE, INP-ENSAT Toulouse, UMR AGIRUniversité de Toulouse, INRAE, INP-EIP Toulouse, UMR AGIRSunflower (Helianthus annuus L.) is one of the three most productive oilseed crops worldwide. Soilborne diseases limit yields and are challenging to manage. The fungi Verticillium dahliae, Sclerotinia sclerotiorum and Macrophomina phaseolina can survive in the soil for many years and spread. Following the ban on fumigants, biofumigation, which consists of growing, chopping and incorporating a Brassicaceae cover crop to allow biocidal compounds production in the soil, may be an alternative. Biocidal effects of the hydrolysis of glucosinolate into active compounds, such as isothiocyanates, have been shown in laboratory studies, but the effectiveness of biofumigation varies more in the field. The present study reviews the main factors that determine effective biofumigation to protect sunflower. Since the toxicity of isothiocyanates to pathogens varies widely among the latter, we reviewed studies that assessed the suppressive effect of products of glucosinolate hydrolysis on V. dahliae, S. sclerotiorum and M. phaseolina. Farmers can use many mechanisms to increase isothiocyanate production, which may protect sunflower crop effectively. Increasing biomass production and chopping the cover crop during mild temperatures and before rainy periods could increase biofumigation effectiveness. Further field experiments are needed to confirm the potential of biofumigation to control soilborne diseases of sunflower and assess potential disservices to beneficial soil communities, given their potential key role in the control of soilborne pathogens.https://www.ocl-journal.org/articles/ocl/full_html/2020/01/ocl200034/ocl200034.htmlhelianthus annuuscover cropsbrassicaceaeglucosinolatesagroecological crop protection |
| spellingShingle | Ait-Kaci Ahmed Neïla Dechamp-Guillaume Grégory Seassau Célia Biofumigation to protect oilseed crops: focus on management of soilborne fungi of sunflower☆ Oilseeds and fats, crops and lipids helianthus annuus cover crops brassicaceae glucosinolates agroecological crop protection |
| title | Biofumigation to protect oilseed crops: focus on management of soilborne fungi of sunflower☆ |
| title_full | Biofumigation to protect oilseed crops: focus on management of soilborne fungi of sunflower☆ |
| title_fullStr | Biofumigation to protect oilseed crops: focus on management of soilborne fungi of sunflower☆ |
| title_full_unstemmed | Biofumigation to protect oilseed crops: focus on management of soilborne fungi of sunflower☆ |
| title_short | Biofumigation to protect oilseed crops: focus on management of soilborne fungi of sunflower☆ |
| title_sort | biofumigation to protect oilseed crops focus on management of soilborne fungi of sunflower☆ |
| topic | helianthus annuus cover crops brassicaceae glucosinolates agroecological crop protection |
| url | https://www.ocl-journal.org/articles/ocl/full_html/2020/01/ocl200034/ocl200034.html |
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