Assessing the Interplay between Weather and Septoria Leaf Blotch Severity on Lower Leaves on the Disease Risk on Upper Leaves in Winter Wheat
Article
Article Title | Assessing the Interplay between Weather and Septoria Leaf Blotch Severity on Lower Leaves on the Disease Risk on Upper Leaves in Winter Wheat |
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ERA Journal ID | 213247 |
Article Category | Article |
Authors | El Jarroudi, Moussa (Author), Kouadio, Louis (Author), Junk, Jurgen (Author), Maraite, Henri (Author), Tychon, Bernard (Author) and Delfosse, Philippe (Author) |
Journal Title | Journal of Fungi |
Journal Citation | 8 (11), pp. 1-16 |
Article Number | 1119 |
Number of Pages | 16 |
Year | 2022 |
Publisher | MDPI AG |
Place of Publication | Switzerland |
ISSN | 2309-608X |
Digital Object Identifier (DOI) | https://doi.org/10.3390/jof8111119 |
Web Address (URL) | https://www.mdpi.com/2309-608X/8/11/1119 |
Abstract | Septoria leaf blotch (SLB) is among the most damaging foliar diseases of wheat worldwide. In this study, data for seven cropping seasons (2003-2009) at four representative wheat-growing sites in the Grand-Duchy of Luxembourg (GDL) were used to assess SLB risk on the three upper leaves (L3 to L1, L1 being the flag leaf) based on the combination of conducive weather conditions, simulated potential daily infection events by Zymoseptoria tritici, and SLB severity on lower leaves between stem elongation and mid-flowering. Results indicated that the variability in SLB severity on L3 to L1 at soft dough was significantly (p < 0.05) influenced by the disease severity on the lower leaf L5 at L3 emergence and the sum of daily mean air temperature between stem elongation and mid-flowering. Moreover, analyzing the predictive power of these variables through multiple linear regression indicated that the disease severity on L5 at L3 emergence and mild weather conditions between stem elongation and mid-flowering critically influenced the progress of SLB later in the season. Such results can help fine tune weather-based SLB risk models to guide optimal timing of fungicide application in winter wheat fields and ensure economic and ecological benefits. |
Keywords | Zymoseptoria tritici; plant disease risk; PROCULTURE; sustainability |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 310805. Plant pathology |
300409. Crop and pasture protection (incl. pests, diseases and weeds) | |
Byline Affiliations | University of Liege, Belgium |
Centre for Applied Climate Sciences | |
Luxembourg Institute of Science and Technology, Luxembourg | |
Catholic University of Leuven, Belgium | |
University of Luxembourg | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q7vyy/assessing-the-interplay-between-weather-and-septoria-leaf-blotch-severity-on-lower-leaves-on-the-disease-risk-on-upper-leaves-in-winter-wheat
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