Influence of inoculum density, temperature, wetness duration, and leaf age on infection and development of spinach anthracnose caused by the fungal pathogen Colletotrichum spinaciae

dc.contributor.authorUysal, Aysun
dc.contributor.authorKurt, Sener
dc.date.accessioned2024-09-18T20:19:47Z
dc.date.available2024-09-18T20:19:47Z
dc.date.issued2017
dc.departmentHatay Mustafa Kemal Üniversitesien_US
dc.description.abstractSpinach anthracnose caused by Colletotrichum spinaciae is a newly emergent disease that causes serious losses in the spinach fields of the Mediterranean Region of Turkey. The most popular spinach cv. Matador is very susceptible to the anthracnose. Currently, anthracnose disease is not effectively controlled in Turkey due to the lack of understanding of its epidemiology. In order to understand the effect of environmental parameters on anthracnose, the influences of inoculum concentration, temperature, leaf wetness duration, plant and leaf age on lesion development of spinach anthracnose was studied under controlled conditions. Seedlings of spinach cv. Matador at 4-leaf stage were inoculated with four inoculum concentrations, 10(2), 10(4), 10(6), 2 x 10(6) conidia/ml, and subjected to seven temperatures of 15, 18, 22, 25, 28, 30, and 33 A degrees C, and nine leaf wetness durations of 3, 5, 10, 20, 24, 30, 44, 48, and 53 h. The mean number of lesions per plant increased at the rate of 50.7% with increasing inoculum density from 10(4) to 10(6) conidia per millilitre. Inoculum concentration with 10(6) conidia per ml of C. spinaciae was appropriate for infection and lesion development. Disease was observed at all temperatures and increased with wetness duration. The development of lesions per plant was observed more gradually when incubation temperature increased from 15 A degrees C to 22 A degrees C. The mean lesion number of anthracnose increased on spinach seedlings as wetness duration increased to 24 h and temperatures to 22 A degrees C and 25 A degrees C. Regression analysis revealed that there was a linear relationship between the increase in number of lesions per plant and wetness duration at 18, 25, and 30 A degrees C. Optimum disease development was recorded at 22 A degrees C with 24 h leaf wetness period. The highest number of lesions was observed at 45 d-old plants. In the same time, older leaves were more severely infected than younger leaves. This kind of information can be used to target key stages of an epidemic and may allow tailoring of spray programs or disease forecasts to cultivar with different levels of anthracnose resistance.en_US
dc.description.sponsorshipCoordinatorship of the Scientific Research Projects of Mustafa Kemal University, Hatay, Turkey [10720]en_US
dc.description.sponsorshipAuthors would like to thank Professor Emine Mine Soylu for her scientific and technical support. This investigation was supported by a Grant (No. 10720) from the Coordinatorship of the Scientific Research Projects of Mustafa Kemal University, Hatay, Turkey.en_US
dc.identifier.doi10.1007/s10658-017-1249-y
dc.identifier.endpage1052en_US
dc.identifier.issn0929-1873
dc.identifier.issn1573-8469
dc.identifier.issue4en_US
dc.identifier.scopus2-s2.0-85019100328en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage1041en_US
dc.identifier.urihttps://doi.org/10.1007/s10658-017-1249-y
dc.identifier.urihttps://hdl.handle.net/20.500.12483/9848
dc.identifier.volume149en_US
dc.identifier.wosWOS:000414691500024en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofEuropean Journal of Plant Pathologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectEpidemiologyen_US
dc.subjectAnthracnoseen_US
dc.subjectSpinachen_US
dc.titleInfluence of inoculum density, temperature, wetness duration, and leaf age on infection and development of spinach anthracnose caused by the fungal pathogen Colletotrichum spinaciaeen_US
dc.typeArticleen_US

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