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Growth and impact of herbicide sensitive and multiple resistant Alopecurus myosuroides in winter wheat / YI Kaiser (2015)

Public Citation est un extrait de Symposium Weed management in changing environments (2015 ; Montpellier) 17th European weed research society symposium, EWRS 2015, 22-26 June 2015, Montpellier SupAgro, France / European weed research society (2015) Titre : Growth and impact of herbicide sensitive and multiple resistant Alopecurus myosuroides in winter wheat Type de document : Extrait d'ouvrage Auteurs : YI Kaiser ; Roland Gerhards Année de publication : 2015 Importance : p. 120 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Malherbologie Mots-clés : Alopecurus myosuroides Huds., 1762 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=85777 Kaiser, YI, Gerhards, Roland 2015 Growth and impact of herbicide sensitive and multiple resistant Alopecurus myosuroides in winter wheat. In: Symposium Weed management in changing environments (2015 ; Montpellier) 17th European weed research society symposium, EWRS 2015, 22-26 June 2015, Montpellier SupAgro, France. AFPP = Association française de protection des plantes, Alfortville: 120.

Reintroduction strategies for rare arable weeds in agricultural practice and their influence on yield / Matthias Schumacher in Weed Research, 64 (2024) 

Public Citation [article]  inWeed Research > 64 (2024) . - 384-394 Titre : Reintroduction strategies for rare arable weeds in agricultural practice and their influence on yield Type de document : Imprimé Auteurs : Matthias Schumacher ; Rosa Witty ; Roland Gerhards Année de publication : 2024 Article en page(s) : 384-394 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Conservation et gestion des espèces [CBNPMP-Thématique] Messicole Résumé : Agricultural intensification and changing landscape structure led to decreasing numbers of arable flora and fauna during the last decades. To counteract these declines, arable plant diversity needs to be restored. It is important to promote regional plant communities including endangered species to ensure adaption to agricultural landscapes. Therefore, this study examines the development of arable plant diversity, crop yield and the reintroduction success of rare arable plants (RAPs) under different practical farming strategies in cereals from 2019 to 2021 in southwestern Germany. Farming strategies varied regarding weed control intensity (none, mechanical, herbicide with and without efficiency gap), fertilisation (mineral and none) and row spacing (12.5 cm and 20 cm). Additionally, two different seed mixtures containing RAP and common species were used for reintroduction: one commercially available and another self-composed. Reintroduction success was quite high with more than 80% establishment rate. Species numbers doubled in all treatments over time, except the one with herbicide application, with on average 8–10 species emerging from the soil seed bank. Reintroduction of RAP increased arable plant species richness further up to 37 species. The site-adapted mixture showed in the end a site-typical weed community. Yield was significantly lower in treatments with reintroduction via sown mixtures and no weed control, losing on average 65% yield. The reintroduction of RAP was successful and accompanied by an increasing floral diversity, however, with a simultaneous yield loss. Financial incentives or subsidies are therefore still necessary to compensate yield loss for reintroduction and conservation efforts. Lien pérenne : DOI : 10.1111/wre.12659 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=153591 Schumacher, Matthias, Witty, Rosa, Gerhards, Roland 2024 Reintroduction strategies for rare arable weeds in agricultural practice and their influence on yield. Weed Research, 64: 384-394.

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Consultable article (2024) URL

The influence of farming on weed flora in the Gäu region of Southwestern Germany with an emphasis on rare arable weed species / Matthias Schumacher (2018) 

Public Citation est un extrait de Tagungsband : 28. Deutsche Arbeitsbesprechung über Fragen der Unkrautbiologie und -bekämpfung : 27. Februar-1. März 2018, Braunschweig / Henning Nordmeyer (2018)  Titre : The influence of farming on weed flora in the Gäu region of Southwestern Germany with an emphasis on rare arable weed species Type de document : Extrait d'ouvrage Auteurs : Matthias Schumacher ; Ann-Kathrin Hahn ; Roland Gerhards Année de publication : 2018 Importance : 30-34 Langues : Anglais (eng) Catégories : [CBNPMP-Géographique] Allemagne [CBNPMP-Thématique] Messicole Résumé : Highly developed weed control strategies manage to suppress weeds and therefore contribute to a shift in weed community composition as well as a decline in rare weed occurrence. To counteract this decline fields containing rare weed species are taken under contract for preservation purposes, however only time limited. We mapped the weed flora in cereals of conventional (K) and organic (O) fields as well as current (V) and former (E) rare species conservation fields in the Gäu region of Southwestern Germany in 2016. We found similar weed species numbers in O (24 – 38 species) and V (36 – 43 species) and in C (7 – 17 species) and E (13 – 15 species). Weed community composition varied considerably between fields. By performing a CCA (Canonical Correspondence Analysis) we were able to explain 23% of the weed community composition by the parameters seeding rate and nitrogen fertilization. Nevertheless species such as Alopecurus myosuroides, Geranium dissectum, Papaver rhoeas, Poa trivialis and Veronica persica showed a high consistency in all observations. Rare and endangered weed species like Papaver argemone, Consolida regalis, Ranunculus arvensis and Galium tricornutum were only present in V and occasionally E and O. This indicates a rapid decline of weed species diversity after contracts expire, which slowly leads to a similar floral composition as in conventional fields. Therefore new concepts for constant protection of rare weed species should be put into action to ensure conservation success. Lien pérenne : DOI : 10.5073/jka.2018.458.004 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=148476 Schumacher, Matthias, Hahn, Ann-Kathrin, Gerhards, Roland 2018 The influence of farming on weed flora in the Gäu region of Southwestern Germany with an emphasis on rare arable weed species. In: Tagungsband : 28. Deutsche Arbeitsbesprechung über Fragen der Unkrautbiologie und -bekämpfung : 27. Februar-1. März 2018, Braunschweig. Julius Kühn-Institut, Quedlinburg: 30-34.

Documents numériques

Consultable Communication (2018) URL