The dynamics of an interaction between Digitaria sanguinalis and Ustilago syntherismae at local scale is strongly influenced by environment and spatial distribution
| العنوان: | The dynamics of an interaction between Digitaria sanguinalis and Ustilago syntherismae at local scale is strongly influenced by environment and spatial distribution |
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| المؤلفون: | Antoni M.C. Verdú, M. T. Mas |
| المساهمون: | Universitat Politècnica de Catalunya. Departament d'Enginyeria Agroalimentària i Biotecnologia |
| المصدر: | Recercat. Dipósit de la Recerca de Catalunya instname UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Ustilago syntherismae, loose smut, Loose smut, biology, Local scale, Digitaria sanguinalis, Plant Science, Horticulture, Spatial distribution, biology.organism_classification, short-distance dispersal, Infection rate, Plantes -- Aclimatació, Symptomless plants, Agronomy, Large crabgrass, Genetics, Plant ecology, Agronomy and Crop Science, Within-population variability, Enginyeria agroalimentària::Agricultura [Àrees temàtiques de la UPC] |
| الوصف: | A wild loose smut–summer annual grass interaction was studied to explore the relative importance of some local spatiotemporal patterns of variation for its existence. The prevalence-related variable measured was the proportion of diseased plants (PDP). The mean annual PDP of nine consecutive seasons (2009–2017) was analysed using a generalized linear model with a binomial distribution considering covariables related to rainfall. During the seasons 2013–2015, the precise location of each sample within the plot was taken into account. The PDP of these seasons was analysed in various ways by means of generalized linear models, searching for its spatial variation with plant density in a given season, and with sorus and seeded inflorescence densities of the previous season. Symptomless plants were estimated as 6.1% of the 2015 population. The mean annual PDP ranged from 0.08 to 0.42 and covaried positively with precipitation. Within the field, two zones could be repeatedly delimited among seasons: one in which high plant densities and high PDP co-occurred, and another with lower values of both in which PDP depended on the sorus density. |
| وصف الملف: | application/pdf |
| اللغة: | English |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::041e00018e38e9d6fe71084e224bb166 https://hdl.handle.net/2117/176750 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....041e00018e38e9d6fe71084e224bb166 |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |