Effect of Cultivar Resistance and Soil Management on Spatial–Temporal Development of Verticillium Wilt of Olive: A Long-Term Study
Verticillium wilt, caused by Verticillium dahliae, challenges olive cultivation and an Integrated Disease Management (IDM) approach is the best-suited tool to combat it. Since 1998, an IDM strategy in an orchard (called Granon, Spain) of the susceptible cv. Picual was conducted by increasing plantin...
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Frontiers Media S.A.
2020-10-01
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| Series: | Frontiers in Plant Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fpls.2020.584496/full |
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| author | Eduardo Ostos María Teresa Garcia-Lopez María Teresa Garcia-Lopez Rafael Porras Francisco J. Lopez-Escudero Antonio Trapero-Casas Themis J. Michailides Juan Moral |
| author_facet | Eduardo Ostos María Teresa Garcia-Lopez María Teresa Garcia-Lopez Rafael Porras Francisco J. Lopez-Escudero Antonio Trapero-Casas Themis J. Michailides Juan Moral |
| author_sort | Eduardo Ostos |
| collection | DOAJ |
| description | Verticillium wilt, caused by Verticillium dahliae, challenges olive cultivation and an Integrated Disease Management (IDM) approach is the best-suited tool to combat it. Since 1998, an IDM strategy in an orchard (called Granon, Spain) of the susceptible cv. Picual was conducted by increasing planting density with moderately resistant cv. Frantoio, chemical weed control, and replanting of dead olives with cv. Frantoio following soil solarization. The Verticillium wilt epidemic in Granon orchard was compared to the epidemic in a non-IDM orchard (called Ancla, Spain) with plowed soil and dead Picual olives replanted with the same cultivar. Field evaluations (2012–2013) showed an incidence and severity of the disease as Picual–Ancla > Picual–Granon > Frantoio–Granon. The spatiotemporal dynamics of the Verticillium epidemics from 1998 to 2010 were monitored with digital images using SIG. The annual tree mortalities were 5.6% for Picual olives in Ancla orchard, and 3.1 and 0.7% for Picual and Frantoio olives in Granon orchard, respectively. There was a negative relationship between the mortality of olive trees (%) by the pathogen and the height (m) above sea level. The annual mortality of cv. Picual olives was positively correlated with spring rainfalls. The Index of Dispersion and beta-binomial distribution showed aggregation of Verticillium-dead olives. In conclusion, this IDM strategy considerably reduced the disease in comparison with traditional agronomic practices. |
| first_indexed | 2024-12-17T20:22:14Z |
| format | Article |
| id | doaj.art-8168361ce2be4e06831df44c1a47a374 |
| institution | Directory Open Access Journal |
| issn | 1664-462X |
| language | English |
| last_indexed | 2024-12-17T20:22:14Z |
| publishDate | 2020-10-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Plant Science |
| spelling | doaj.art-8168361ce2be4e06831df44c1a47a3742022-12-21T21:33:54ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2020-10-011110.3389/fpls.2020.584496584496Effect of Cultivar Resistance and Soil Management on Spatial–Temporal Development of Verticillium Wilt of Olive: A Long-Term StudyEduardo Ostos0María Teresa Garcia-Lopez1María Teresa Garcia-Lopez2Rafael Porras3Francisco J. Lopez-Escudero4Antonio Trapero-Casas5Themis J. Michailides6Juan Moral7Department of Agronomy, University of Córdoba, Córdoba, SpainDepartment of Agronomy, University of Córdoba, Córdoba, SpainDepartment of Plant Pathology, University of California, Davis, Davis, CA, United StatesBiogeos, Estudios Ambientales, Centauro, SpainDepartment of Agronomy, University of Córdoba, Córdoba, SpainDepartment of Agronomy, University of Córdoba, Córdoba, SpainDepartment of Plant Pathology, University of California, Davis, Davis, CA, United StatesDepartment of Agronomy, University of Córdoba, Córdoba, SpainVerticillium wilt, caused by Verticillium dahliae, challenges olive cultivation and an Integrated Disease Management (IDM) approach is the best-suited tool to combat it. Since 1998, an IDM strategy in an orchard (called Granon, Spain) of the susceptible cv. Picual was conducted by increasing planting density with moderately resistant cv. Frantoio, chemical weed control, and replanting of dead olives with cv. Frantoio following soil solarization. The Verticillium wilt epidemic in Granon orchard was compared to the epidemic in a non-IDM orchard (called Ancla, Spain) with plowed soil and dead Picual olives replanted with the same cultivar. Field evaluations (2012–2013) showed an incidence and severity of the disease as Picual–Ancla > Picual–Granon > Frantoio–Granon. The spatiotemporal dynamics of the Verticillium epidemics from 1998 to 2010 were monitored with digital images using SIG. The annual tree mortalities were 5.6% for Picual olives in Ancla orchard, and 3.1 and 0.7% for Picual and Frantoio olives in Granon orchard, respectively. There was a negative relationship between the mortality of olive trees (%) by the pathogen and the height (m) above sea level. The annual mortality of cv. Picual olives was positively correlated with spring rainfalls. The Index of Dispersion and beta-binomial distribution showed aggregation of Verticillium-dead olives. In conclusion, this IDM strategy considerably reduced the disease in comparison with traditional agronomic practices.https://www.frontiersin.org/articles/10.3389/fpls.2020.584496/fullVerticillium wiltIntegrated Disease ManagementoliveVerticilliumplant pathogen control |
| spellingShingle | Eduardo Ostos María Teresa Garcia-Lopez María Teresa Garcia-Lopez Rafael Porras Francisco J. Lopez-Escudero Antonio Trapero-Casas Themis J. Michailides Juan Moral Effect of Cultivar Resistance and Soil Management on Spatial–Temporal Development of Verticillium Wilt of Olive: A Long-Term Study Frontiers in Plant Science Verticillium wilt Integrated Disease Management olive Verticillium plant pathogen control |
| title | Effect of Cultivar Resistance and Soil Management on Spatial–Temporal Development of Verticillium Wilt of Olive: A Long-Term Study |
| title_full | Effect of Cultivar Resistance and Soil Management on Spatial–Temporal Development of Verticillium Wilt of Olive: A Long-Term Study |
| title_fullStr | Effect of Cultivar Resistance and Soil Management on Spatial–Temporal Development of Verticillium Wilt of Olive: A Long-Term Study |
| title_full_unstemmed | Effect of Cultivar Resistance and Soil Management on Spatial–Temporal Development of Verticillium Wilt of Olive: A Long-Term Study |
| title_short | Effect of Cultivar Resistance and Soil Management on Spatial–Temporal Development of Verticillium Wilt of Olive: A Long-Term Study |
| title_sort | effect of cultivar resistance and soil management on spatial temporal development of verticillium wilt of olive a long term study |
| topic | Verticillium wilt Integrated Disease Management olive Verticillium plant pathogen control |
| url | https://www.frontiersin.org/articles/10.3389/fpls.2020.584496/full |
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