{"id":705,"date":"2021-09-21T14:52:22","date_gmt":"2021-09-21T12:52:22","guid":{"rendered":"https:\/\/genie-vegetal-caraibe.org\/?p=705"},"modified":"2022-02-22T19:55:26","modified_gmt":"2022-02-22T18:55:26","slug":"premiers-resultats-des-experimentations","status":"publish","type":"post","link":"https:\/\/genie-vegetal-caraibe.org\/en\/premiers-resultats-des-experimentations\/","title":{"rendered":"Premiers r\u00e9sultats des exp\u00e9rimentations !"},"content":{"rendered":"<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/genie-vegetal-caraibe.org\/wp-content\/uploads\/2021\/09\/Vignette-768x1024.jpg\" alt=\"\" class=\"wp-image-708\" width=\"174\" height=\"232\" srcset=\"https:\/\/genie-vegetal-caraibe.org\/wp-content\/uploads\/2021\/09\/Vignette-768x1024.jpg 768w, https:\/\/genie-vegetal-caraibe.org\/wp-content\/uploads\/2021\/09\/Vignette-225x300.jpg 225w, https:\/\/genie-vegetal-caraibe.org\/wp-content\/uploads\/2021\/09\/Vignette-1152x1536.jpg 1152w, https:\/\/genie-vegetal-caraibe.org\/wp-content\/uploads\/2021\/09\/Vignette-1536x2048.jpg 1536w, https:\/\/genie-vegetal-caraibe.org\/wp-content\/uploads\/2021\/09\/Vignette-9x12.jpg 9w, https:\/\/genie-vegetal-caraibe.org\/wp-content\/uploads\/2021\/09\/Vignette-scaled.jpg 1920w\" sizes=\"auto, (max-width: 174px) 100vw, 174px\" \/><figcaption><em>Bouture de Piper dussii<\/em><br><em>laiss\u00e9e 6 mois en terre<\/em><\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">L\u2019<strong>exp\u00e9rimentation portant sur le bouturage<\/strong> d\u2019esp\u00e8ces locales avait pour <strong>objectif d\u2019\u00e9valuer le potentiel de multiplication v\u00e9g\u00e9tative des esp\u00e8ces d\u2019arbres, d\u2019arbustes et d\u2019herbac\u00e9es <\/strong>cibl\u00e9es selon des modalit\u00e9s simples et peu co\u00fbteuses, donc reproductibles pour les chantiers de g\u00e9nie v\u00e9g\u00e9tal.\u00a0Apr\u00e8s avoir test\u00e9 \u00e0 petite \u00e9chelle les capacit\u00e9s de bouturage des 44 esp\u00e8ces du projet, 23 esp\u00e8ces ont \u00e9t\u00e9 s\u00e9lectionn\u00e9es au mois de juin dernier pour l\u2019exp\u00e9rimentation \u00ab grande \u00e9chelle \u00bb.\u00a011 esp\u00e8ces d\u2019arbres et arbustes, et 12 esp\u00e8ces d\u2019herbac\u00e9es, gramin\u00e9es et foug\u00e8res ont \u00e9t\u00e9 collect\u00e9es, laiss\u00e9es en terre puis excav\u00e9es.\u00a0A ce stade, nous savons d\u00e9j\u00e0 que <strong>6 esp\u00e8ces d\u2019arbres et arbustes et 7 esp\u00e8ces d\u2019herbac\u00e9es bouturent \u00e0 plus de 50 % !<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f4t\u00e9 <strong>arbre<\/strong>, les \u00ab champions du bouturage \u00bb sont le<em> bois carr\u00e9, le r\u00e9solu rivi\u00e8re et le figuier blanc<\/em>, c\u00f4t\u00e9 <strong>arbuste<\/strong>, certaines esp\u00e8ces de <em>piper et la foug\u00e8re b\u00e2tard <\/em>ont \u00e9galement des taux de reprise importants. Pour les <strong>herbac\u00e9es<\/strong>, <em>la siguine, le curage, l\u2019herbe soleil ou la foug\u00e8re dor\u00e9e<\/em> ont \u00e9galement de tr\u00e8s bonnes capacit\u00e9s de bouturage.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les caract\u00e9ristiques<strong> \u00ab a\u00e9riennes \u00bb<\/strong> (croissance, nombre de ramifications, etc.) ainsi que celles du <strong>\u00ab&nbsp;syst\u00e8me racinaire&nbsp;\u00bb<\/strong> ont \u00e9t\u00e9 mesur\u00e9es et sont en cours d\u2019analyses afin d\u2019\u00e9valuer le potentiel d\u2019utilisation de ces esp\u00e8ces locales qui bouturent en g\u00e9nie v\u00e9g\u00e9tal, sur les berges des rivi\u00e8res.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L\u2019<strong>exp\u00e9rimentation portant sur les plantules<\/strong> de 6 esp\u00e8ces de l\u00e9gumineuses \u00e0 quant \u00e0 elle permis de d\u00e9terminer deux esp\u00e8ces plus int\u00e9ressantes \u00e0 utiliser sur les chantiers de g\u00e9nie v\u00e9g\u00e9tal, gr\u00e2ce \u00e0 la croissance rapide de leur syst\u00e8me racinaire dans les premiers mois de d\u00e9veloppement. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le <em>Pois doux petite feuille<\/em> et le <em>Mangle m\u00e9dailles<\/em> ont une <strong>forte production de biomasse<\/strong>, avec un d\u00e9veloppement de racine pivot <strong>compatible pour une utilisation en g\u00e9nie v\u00e9g\u00e9tal<\/strong>.<br>La <em>savonnette rivi\u00e8re<\/em>, <em>le Pois doux rivi\u00e8re<\/em>, et la <em>savonnette grand bois <\/em>sont moins performants d\u2019un point de vue \u00ab\u00a0g\u00e9nie v\u00e9g\u00e9tal\u00a0\u00bb, mais restent utiles pour <strong>augmenter la diversit\u00e9 sp\u00e9cifique des ouvrages <\/strong>de g\u00e9nie v\u00e9g\u00e9tal.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Certaines esp\u00e8ces ne sont pas strictement ripicoles et pourront <strong>\u00eatre utilis\u00e9es pour dans des projets de restauration<\/strong>, en Guadeloupe ou dans la Cara\u00efbe.<\/p>","protected":false},"excerpt":{"rendered":"<p>L\u2019exp\u00e9rimentation portant sur le bouturage d\u2019esp\u00e8ces locales avait pour objectif d\u2019\u00e9valuer le potentiel de multiplication v\u00e9g\u00e9tative des esp\u00e8ces d\u2019arbres, d\u2019arbustes et d\u2019herbac\u00e9es cibl\u00e9es selon des modalit\u00e9s simples et peu co\u00fbteuses, donc reproductibles pour les chantiers de g\u00e9nie v\u00e9g\u00e9tal.\u00a0Apr\u00e8s avoir test\u00e9 \u00e0 petite \u00e9chelle les capacit\u00e9s de bouturage des 44 esp\u00e8ces du projet, 23 esp\u00e8ces ont [&hellip;]<\/p>\n","protected":false},"author":27,"featured_media":707,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"none","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":301,"_seopress_analysis_target_kw":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-705","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites"],"acf":[],"_links":{"self":[{"href":"https:\/\/genie-vegetal-caraibe.org\/en\/wp-json\/wp\/v2\/posts\/705","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/genie-vegetal-caraibe.org\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/genie-vegetal-caraibe.org\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/genie-vegetal-caraibe.org\/en\/wp-json\/wp\/v2\/users\/27"}],"replies":[{"embeddable":true,"href":"https:\/\/genie-vegetal-caraibe.org\/en\/wp-json\/wp\/v2\/comments?post=705"}],"version-history":[{"count":3,"href":"https:\/\/genie-vegetal-caraibe.org\/en\/wp-json\/wp\/v2\/posts\/705\/revisions"}],"predecessor-version":[{"id":713,"href":"https:\/\/genie-vegetal-caraibe.org\/en\/wp-json\/wp\/v2\/posts\/705\/revisions\/713"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/genie-vegetal-caraibe.org\/en\/wp-json\/wp\/v2\/media\/707"}],"wp:attachment":[{"href":"https:\/\/genie-vegetal-caraibe.org\/en\/wp-json\/wp\/v2\/media?parent=705"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/genie-vegetal-caraibe.org\/en\/wp-json\/wp\/v2\/categories?post=705"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/genie-vegetal-caraibe.org\/en\/wp-json\/wp\/v2\/tags?post=705"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}