Weather Conditions Associated with the Release and Dispersal of Zymoseptoria tritici Spores in the Argentine Pampas Region

The abundance ofZymoseptoria triticiascospores and conidia in a field was examined throughout two one-year periods (1998-1999 and 1999-2000) establishing the relationship between spore release and weather variables. Radiation, temperature, intensity of rainfall, and relative humidity significantly a...

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Autores principales: Cordo, Cristina Alicia, Mónaco, Cecilia Inés, Altamirano, Pablo Rodrigo, Perelló, Analía Edith, Larrán, Silvina, Kripelz, Natalia Irene, Simón, María Rosa
Formato: Articulo
Lenguaje:Inglés
Publicado: 2017
Materias:
Ciencias Agrarias
Zymoseptoria tritici, environment conditions and spores dispersal, control strategies
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/75514
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-75514
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Agrarias
Zymoseptoria tritici, environment conditions and spores dispersal, control strategies
spellingShingle Ciencias Agrarias
Zymoseptoria tritici, environment conditions and spores dispersal, control strategies
Cordo, Cristina Alicia
Mónaco, Cecilia Inés
Altamirano, Pablo Rodrigo
Perelló, Analía Edith
Larrán, Silvina
Kripelz, Natalia Irene
Simón, María Rosa
Weather Conditions Associated with the Release and Dispersal of Zymoseptoria tritici Spores in the Argentine Pampas Region
topic_facet Ciencias Agrarias
Zymoseptoria tritici, environment conditions and spores dispersal, control strategies
description The abundance ofZymoseptoria triticiascospores and conidia in a field was examined throughout two one-year periods (1998-1999 and 1999-2000) establishing the relationship between spore release and weather variables. Radiation, temperature, intensity of rainfall, and relative humidity significantly affected the dispersal of ascospores and pycnidiospores of this pathogen. Spore traps collected both types of spores, at weekly intervals, at two different stages of the wheat crop (vegetative and wheat stubble stages) and different distances from the sources. Ascospores were the predominant sources of inoculum in the field. The numbers of ascospores and pycnidiospores declined with the increase of distance from the sources. The release of pycnidiospores was associated with the increase in rainfall intensity 7 days before the released event and the increase in radiation 60 days before the same event. Relative humidity 3 and 15 days before the release event was positively correlated with ascospores release and negatively correlated with radiation and temperature in all the sampling interval. Also for the first time, a positive correlation between radiation and pycnidiospores dispersal is reported. Understanding the relationship between environment conditions and spores dispersal event could improve the control strategies of the disease.
format Articulo
Articulo
author Cordo, Cristina Alicia
Mónaco, Cecilia Inés
Altamirano, Pablo Rodrigo
Perelló, Analía Edith
Larrán, Silvina
Kripelz, Natalia Irene
Simón, María Rosa
author_facet Cordo, Cristina Alicia
Mónaco, Cecilia Inés
Altamirano, Pablo Rodrigo
Perelló, Analía Edith
Larrán, Silvina
Kripelz, Natalia Irene
Simón, María Rosa
author_sort Cordo, Cristina Alicia
title Weather Conditions Associated with the Release and Dispersal of Zymoseptoria tritici Spores in the Argentine Pampas Region
title_short Weather Conditions Associated with the Release and Dispersal of Zymoseptoria tritici Spores in the Argentine Pampas Region
title_full Weather Conditions Associated with the Release and Dispersal of Zymoseptoria tritici Spores in the Argentine Pampas Region
title_fullStr Weather Conditions Associated with the Release and Dispersal of Zymoseptoria tritici Spores in the Argentine Pampas Region
title_full_unstemmed Weather Conditions Associated with the Release and Dispersal of Zymoseptoria tritici Spores in the Argentine Pampas Region
title_sort weather conditions associated with the release and dispersal of zymoseptoria tritici spores in the argentine pampas region
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/75514
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