{"id":11361,"date":"2025-07-17T14:40:13","date_gmt":"2025-07-17T12:40:13","guid":{"rendered":"https:\/\/www.oper-8.eu\/les-cultivars-competitifs-concurrents-des-adventices-dans-les-grandes-cultures\/"},"modified":"2025-09-04T21:21:49","modified_gmt":"2025-09-04T19:21:49","slug":"les-cultivars-competitifs-concurrents-des-adventices-dans-les-grandes-cultures","status":"publish","type":"post","link":"https:\/\/www.oper-8.eu\/fr\/les-cultivars-competitifs-concurrents-des-adventices-dans-les-grandes-cultures\/","title":{"rendered":"Les cultivars comp\u00e9titifs, concurrents des adventices dans les grandes cultures"},"content":{"rendered":"

Un cultivar comp\u00e9titif est une vari\u00e9t\u00e9 qui pousse bien en pr\u00e9sence d\u2019adventices avec lesquelles il entre en concurrence pour les ressources sans que le rendement de la culture n\u2019enregistre de perte notable. Il repr\u00e9sente un outil de contr\u00f4le cultural permettant de r\u00e9duire la d\u00e9pendance aux herbicides. Si certains cultivars inhibent la germination des adventices et contribuent ainsi \u00e0 limiter la population d\u2019adventices, d\u2019autres vari\u00e9t\u00e9s sont tol\u00e9rantes aux adventices et se d\u00e9veloppent donc bien en leur pr\u00e9sence, malgr\u00e9 le risque de voir se renforcer la banque de semences d\u2019adventices. M\u00eame si les cultures c\u00e9r\u00e9ali\u00e8res poss\u00e8dent parfois des traits leur assurant une meilleure comp\u00e9titivit\u00e9 face aux adventices, il est plus fr\u00e9quent qu\u2019une vari\u00e9t\u00e9 h\u00e9rite sa comp\u00e9titivit\u00e9 d\u2019une combinaison de caract\u00e9ristiques que d\u2019un trait unique. Des techniques de gestion, telles que la modification de la largeur des rangs, l\u2019augmentation de la densit\u00e9 de semis et la prise en compte de la date de semis, peuvent en outre \u00eatre int\u00e9gr\u00e9es \u00e0 la s\u00e9lection de cultivars comp\u00e9titifs pour att\u00e9nuer l\u2019impact n\u00e9gatif des adventices.<\/p>\n

Num\u00e9ro du document : 5. UK_PA_BS05_comp cultivars arable<\/em><\/p>\n<\/div><\/div><\/div>

\"5.<\/span><\/div><\/div><\/div><\/div><\/div>
En savoir plus<\/span><\/a><\/div><\/div><\/div><\/div><\/div><\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":2,"featured_media":8667,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[238,304],"tags":[120],"class_list":["post-11361","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-grandes-cultures","category-resumes-pratiques","tag-royaume-uni"],"_links":{"self":[{"href":"https:\/\/www.oper-8.eu\/fr\/wp-json\/wp\/v2\/posts\/11361","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.oper-8.eu\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.oper-8.eu\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.oper-8.eu\/fr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.oper-8.eu\/fr\/wp-json\/wp\/v2\/comments?post=11361"}],"version-history":[{"count":2,"href":"https:\/\/www.oper-8.eu\/fr\/wp-json\/wp\/v2\/posts\/11361\/revisions"}],"predecessor-version":[{"id":11363,"href":"https:\/\/www.oper-8.eu\/fr\/wp-json\/wp\/v2\/posts\/11361\/revisions\/11363"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.oper-8.eu\/fr\/wp-json\/wp\/v2\/media\/8667"}],"wp:attachment":[{"href":"https:\/\/www.oper-8.eu\/fr\/wp-json\/wp\/v2\/media?parent=11361"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.oper-8.eu\/fr\/wp-json\/wp\/v2\/categories?post=11361"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.oper-8.eu\/fr\/wp-json\/wp\/v2\/tags?post=11361"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}