Recherche prospective sur la dualité entre caractéristiques morphologiques et capacités de compétition des végétaux : le cas des espèces adventices et du blé

Autor:	Jean-Marc Ourcival, Maurice Roux, Thierry Dutoit, Eric Gerbaud, Didier Alard
Rok vydání:	2001
Předmět:	Biomass (ecology) Ecology media_common.quotation_subject fungi Endangered species food and beverages Interspecific competition Biology General Biochemistry Genetics and Molecular Biology Competition (biology) Agronomy Plant morphology Threatened species Botany Poaceae Arable land media_common
Zdroj:	Comptes Rendus de l'Académie des Sciences - Series III - Sciences de la Vie. 324:261-272
ISSN:	0764-4469
DOI:	10.1016/s0764-4469(00)01296-8
Popis:	Competitive abilities of plants were interpreted by measuring their morphological traits in interspecific competitive cultivation conditions. Measurements were realised by a comparative approach with interspecific cultivation of fourteen arable weeds growing with a domestic species cultivated at a large scale: the winter wheat (Triticum aestivum var Darius). Results show that arable weeds characterised by an important biomass and allocation of biomass to the stems are responsible for a decrease in wheat biomass, and for the ear, a decrease in height, biomass and number of seeds. These results are discussed in view of predicting competitive abilities of arable weeds with a simple method and for the conservation of arable weeds since some of them are among the most threatened species of the European flora.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::365b68484374c3edb013f1b8fea180fd https://doi.org/10.1016/s0764-4469(00)01296-8 Zobrazit plný text záznamu