Effects of crop and weed densities on the interactions between barley and Lolium rigidum in several Mediterranean locations

The effects of both barley and Lolium rigidum densities on weed growth and spike production and on crop yield were examined in five field experiments carried out in the Mediterranean drylands of Spain and Western Australia. The aim was to check the consistency of the competitiveness of the crop in d...

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Autores: Izquierdo i Figarola, Jordi, Recasens i Guinjuan, Jordi, Fernández-Quintanilla, César, Gill, Gurjeet
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2003
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:10459.1/10988
Acceso en línea:http://hdl.handle.net/10459.1/10988
Access Level:acceso abierto
Palabra clave:Barley
Lolium rigidum
Crop yield
Mediterranean region
Ordi -- Conreu -- Mediterrània (Regió)
Males herbes
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spelling Effects of crop and weed densities on the interactions between barley and Lolium rigidum in several Mediterranean locationsIzquierdo i Figarola, JordiRecasens i Guinjuan, JordiFernández-Quintanilla, CésarGill, GurjeetBarleyLolium rigidumCrop yieldMediterranean regionOrdi -- Conreu -- Mediterrània (Regió)Males herbesThe effects of both barley and Lolium rigidum densities on weed growth and spike production and on crop yield were examined in five field experiments carried out in the Mediterranean drylands of Spain and Western Australia. The aim was to check the consistency of the competitiveness of the crop in different environmental and management conditions. L. rigidum reduced barley yields in most of the experiments (between 0 and 85%), the number of ears per m2 being the most affected. It was found that increasing the barley seeding rate did not reduce the crop losses but did limit weed biomass (between 5 and 61%) and spike production (between 24 and 85%). The variability observed in crop yield losses between sites and seasons was related to rainfall at the beginning of the season. The most sensitive component of yield to weed competition was the number of ears per plant.Les effets combinés des densités de l’orge et de Lolium rigidum sur la croissance des adventices et la production d’épis et sur le rendement cultural ont été examinés dans cinq parcelles expérimentales mises en place dans les terres arides méditerranéennes d’Espagne et de l’Ouest de l’Australie. L’objectif était de vérifier l’importance de la compétitivité de la culture dans différentes conditions environnementales et culturales. L. rigidum a réduit les rendements en orge dans la majorité des expérimentations (entre 0 et 85 %), le nombre d’épi au m2 ayant été le plus affecté. Il a été montré qu’en augmentant la densité de semis d’orge, on ne réduisait pas les pertes de rendement mais on limitait la biomasse d’adventices (entre 5 et 61 %) et la production d’épis (entre 24 et 85 %). La variabilité observée au niveau des pertes de rendement de la culture entre les sites et les saisons a été reliée aux précipitations du début de la saison. La composante du rendement la plus sensible à la compétition avec les adventices a été le nombre d’épis par plante.Institut national de la recherche agronomique (França)EDP Sciences2003info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10459.1/10988reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésAgronomie, 2003, vol. 23, núm. 7, p. 529-536(c) Institut national de la recherche agronomique (França), 2003(c) EDP Sciences, 2003info:eu-repo/semantics/openAccessoai:recercat.cat:10459.1/109882026-05-29T05:05:01Z
dc.title.none.fl_str_mv Effects of crop and weed densities on the interactions between barley and Lolium rigidum in several Mediterranean locations
title Effects of crop and weed densities on the interactions between barley and Lolium rigidum in several Mediterranean locations
spellingShingle Effects of crop and weed densities on the interactions between barley and Lolium rigidum in several Mediterranean locations
Izquierdo i Figarola, Jordi
Barley
Lolium rigidum
Crop yield
Mediterranean region
Ordi -- Conreu -- Mediterrània (Regió)
Males herbes
title_short Effects of crop and weed densities on the interactions between barley and Lolium rigidum in several Mediterranean locations
title_full Effects of crop and weed densities on the interactions between barley and Lolium rigidum in several Mediterranean locations
title_fullStr Effects of crop and weed densities on the interactions between barley and Lolium rigidum in several Mediterranean locations
title_full_unstemmed Effects of crop and weed densities on the interactions between barley and Lolium rigidum in several Mediterranean locations
title_sort Effects of crop and weed densities on the interactions between barley and Lolium rigidum in several Mediterranean locations
dc.creator.none.fl_str_mv Izquierdo i Figarola, Jordi
Recasens i Guinjuan, Jordi
Fernández-Quintanilla, César
Gill, Gurjeet
author Izquierdo i Figarola, Jordi
author_facet Izquierdo i Figarola, Jordi
Recasens i Guinjuan, Jordi
Fernández-Quintanilla, César
Gill, Gurjeet
author_role author
author2 Recasens i Guinjuan, Jordi
Fernández-Quintanilla, César
Gill, Gurjeet
author2_role author
author
author
dc.subject.none.fl_str_mv Barley
Lolium rigidum
Crop yield
Mediterranean region
Ordi -- Conreu -- Mediterrània (Regió)
Males herbes
topic Barley
Lolium rigidum
Crop yield
Mediterranean region
Ordi -- Conreu -- Mediterrània (Regió)
Males herbes
description The effects of both barley and Lolium rigidum densities on weed growth and spike production and on crop yield were examined in five field experiments carried out in the Mediterranean drylands of Spain and Western Australia. The aim was to check the consistency of the competitiveness of the crop in different environmental and management conditions. L. rigidum reduced barley yields in most of the experiments (between 0 and 85%), the number of ears per m2 being the most affected. It was found that increasing the barley seeding rate did not reduce the crop losses but did limit weed biomass (between 5 and 61%) and spike production (between 24 and 85%). The variability observed in crop yield losses between sites and seasons was related to rainfall at the beginning of the season. The most sensitive component of yield to weed competition was the number of ears per plant.
publishDate 2003
dc.date.none.fl_str_mv 2003
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10459.1/10988
url http://hdl.handle.net/10459.1/10988
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Agronomie, 2003, vol. 23, núm. 7, p. 529-536
dc.rights.none.fl_str_mv (c) Institut national de la recherche agronomique (França), 2003
(c) EDP Sciences, 2003
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) Institut national de la recherche agronomique (França), 2003
(c) EDP Sciences, 2003
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Institut national de la recherche agronomique (França)
EDP Sciences
publisher.none.fl_str_mv Institut national de la recherche agronomique (França)
EDP Sciences
dc.source.none.fl_str_mv reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.811543

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