2026-04-13T13:27:58Zhttps://recercat.cat/oai/requestoai:recercat.cat:2117/1767502026-02-11T04:39:28Zcom_2072_1033col_2072_452950
RECERCAT
author
Mas Serra, Maite
author
Verdú González, Antoni Maria Claret
2020-02
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.Postprint (updated version)
http://creativecommons.org/licenses/by/3.0/es/ Open Access Attribution 3.0 Spain
Àrees temàtiques de la UPC::Enginyeria agroalimentària::Agricultura
Plant ecology
Infection rate
Large crabgrass
loose smut
short-distance dispersal
Symptomless plants
Within-population variability
Plantes -- Aclimatació
The dynamics of an interaction between Digitaria sanguinalis and Ustilago syntherismae at local scale is strongly influenced by environment and spatial distribution
Article