{"id":71512,"date":"2024-04-23T10:43:47","date_gmt":"2024-04-23T09:43:47","guid":{"rendered":"https:\/\/knowhow.distrelec.com\/non-classifiee\/le-role-crucial-de-la-lumiere-rouge-en-horticulture-une-exploration-approfondie\/"},"modified":"2024-04-25T15:04:29","modified_gmt":"2024-04-25T14:04:29","slug":"le-role-crucial-de-la-lumiere-rouge-en-horticulture-une-exploration-approfondie","status":"publish","type":"post","link":"https:\/\/knowhow.distrelec.com\/fr\/energie-et-alimentation-electrique\/le-role-crucial-de-la-lumiere-rouge-en-horticulture-une-exploration-approfondie\/","title":{"rendered":"Le r\u00f4le crucial de la lumi\u00e8re rouge en horticulture : une exploration approfondie"},"content":{"rendered":"\n
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James Prietzel, chef de produit chez Intelligent LED
Solutions (ILS)<\/p>\n\n\n\n

James occupe le poste de chef de produit pour tout ce qui concerne les LED au sein d’ILS et fait partie de l’\u00e9quipe depuis 2012. Il se concentre sur les derni\u00e8res technologies et innovations des principaux fournisseurs du monde de l’opto\u00e9lectronique, y compris l’optique, les LED et les drivers de LED intelligents.<\/p>\n<\/div>\n<\/div>\n\n\n\n

L’\u00e9clairage horticole tend souvent vers une teinte rouge-violet, r\u00e9sultant de l’utilisation courante de deux longueurs d’onde cruciales pour les plantes : le bleu profond et l’hyper rouge. Ces deux couleurs essentielles jouent un r\u00f4le d\u00e9terminant dans la sant\u00e9 et la qualit\u00e9 des plantes. Dans cet article, nous explorons les avantages des longueurs d’onde rouges et pourquoi elles sont si pr\u00e9pond\u00e9rantes en horticulture.\u00a0\u00a0<\/p>\n\n\n\n

Ind\u00e9pendamment du temps, de la saison ou de l’heure du jour, les plantes requi\u00e8rent une source lumineuse pour leur croissance. La lumi\u00e8re joue un r\u00f4le crucial en d\u00e9clenchant la photosynth\u00e8se et d’autres processus internes essentiels \u00e0 leur survie et \u00e0 leur d\u00e9veloppement. La lumi\u00e8re rouge se distingue particuli\u00e8rement par son
efficacit\u00e9 dans la stimulation de la photosynth\u00e8se, car elle est absorb\u00e9e par les pigments chlorophylliens des plantes. Souvent utilis\u00e9es pour favoriser la floraison et la
v\u00e9g\u00e9tation, les applications utilisant la lumi\u00e8re rouge peuvent \u00eatre int\u00e9gr\u00e9es en compl\u00e9ment de la lumi\u00e8re naturelle ou \u00eatre partie int\u00e9grante d’une configuration
LED sp\u00e9cifiquement con\u00e7ue pour remplacer celle-ci.<\/p>\n\n\n\n

Pourquoi les plantes r\u00e9agissent-elles \u00e0 la lumi\u00e8re rouge ?<\/h2>\n\n\n\n

La chlorophylle v\u00e9g\u00e9tale repr\u00e9sente l’un des principaux pigments photosynth\u00e9tiques pr\u00e9sents chez les plantes, se d\u00e9clinant en deux variantes : A et B. Ces deux types
de chlorophylle r\u00e9agissent \u00e0 la lumi\u00e8re rouge : la chlorophylle A absorbe la lumi\u00e8re \u00e0 une longueur d’onde hyper rouge de 660 nm, tandis que la chlorophylle B capte les longueurs d’onde rouges plus proches de 640 nm. L’\u00e9nergie capt\u00e9e par la chlorophylle est ensuite convertie en mol\u00e9cules stockant cette \u00e9nergie. Par le biais de la
photosynth\u00e8se, cette \u00e9nergie emmagasin\u00e9e est utilis\u00e9e pour convertir le dioxyde de carbone de l’air et l’eau en glucose. Ce glucose est ensuite employ\u00e9 par les plantes pour synth\u00e9tiser de la cellulose et de l’amidon. La cellulose sert \u00e0 former les parois cellulaires, tandis que l’amidon est stock\u00e9 dans les graines et d’autres parties de la plante, servant ainsi de r\u00e9serve alimentaire.<\/p>\n\n\n\n

La sensibilit\u00e9 des plantes aux longueurs d’onde hyper rouges du spectre lumineux d\u00e9coule de la pr\u00e9sence de photor\u00e9cepteurs de lumi\u00e8re rouge appel\u00e9s phytochromes. Ces r\u00e9cepteurs agissent comme des \u00ab yeux \u00bb capables de d\u00e9tecter la lumi\u00e8re rouge, en
particulier dans la gamme des hyper rouges. Bien qu’ils remplissent plusieurs fonctions, l’une de leurs principales est de d\u00e9tecter l’ombre. Comme nous l’avons d\u00e9j\u00e0 mentionn\u00e9, la lumi\u00e8re rev\u00eat une importance cruciale pour les plantes, qui doivent donc cro\u00eetre de mani\u00e8re \u00e0 maximiser leur exposition au soleil. La lumi\u00e8re rouge lointaine a la particularit\u00e9 de mieux p\u00e9n\u00e9trer \u00e0 travers les feuilles que d’autres longueurs d’onde rouges. Ainsi, les feuilles situ\u00e9es \u00e0 la base de la plante re\u00e7oivent un ratio plus \u00e9lev\u00e9 de lumi\u00e8re rouge lointaine par rapport \u00e0 la lumi\u00e8re rouge directe du soleil. Ce ratio \u00e9lev\u00e9 de lumi\u00e8re rouge
lointaine absorb\u00e9e signale \u00e0 la plante qu’elle se trouve dans l’ombre, priv\u00e9e de la lumi\u00e8re solaire directe. En r\u00e9ponse, la plante adapte sa croissance et\/ou sa position afin d’acc\u00e9der \u00e0 une meilleure exposition \u00e0 la lumi\u00e8re du soleil.<\/p>\n\n\n\n

Quels sont les effets de la lumi\u00e8re rouge sur les plantes ?<\/h2>\n\n\n\n

Des longueurs d’onde rouges sp\u00e9cifiques stimulent la production d’hormones v\u00e9g\u00e9tales qui pr\u00e9viennent la d\u00e9gradation de la chlorophylle. Ce processus entra\u00eene une augmentation des niveaux de chlorophylle et des nutriments dans les plantes,
favorisant ainsi une croissance plus vigoureuse et une v\u00e9g\u00e9tation plus luxuriante. En cons\u00e9quence, la lumi\u00e8re rouge exerce des effets b\u00e9n\u00e9fiques en favorisant la formation de bourgeons et en prolongeant la p\u00e9riode de floraison des plantes \u00e0 fleurs. De plus, elle stimule la biomasse et la production de fruits chez les plantes \u00e0 v\u00e9g\u00e9tation.<\/p>\n\n\n\n

Produits recommand\u00e9s<\/h2>\n\n\n\n

Lampe de culture \u00e0 LED Siena<\/h3>\n\n\n\n
\"Siena<\/figure>\n\n\n\n

Une solution d’\u00e9clairage lin\u00e9aire \u00e0 large spectre id\u00e9ale pour favoriser la croissance v\u00e9g\u00e9tative des plantes. L’int\u00e9gration des longueurs d’onde hyper et rouge lointain dans cette solution stimule quant \u00e0 elle le processus de floraison. La lumi\u00e8re hyper-rouge est b\u00e9n\u00e9fique car cette longueur d’onde est absorb\u00e9e par le pigment phytochrome des plantes. L’objectif int\u00e9gr\u00e9 offre une couverture de 120 degr\u00e9s, \u00e9clairant ainsi de vastes zones.\u00a0<\/p>\n\n\n\n

\n
D\u00e9couvrir la lampe de culture \u00e0 LED Siena<\/a><\/div>\n<\/div>\n\n\n\n

Lampe de culture \u00e0 LED Treviso<\/h3>\n\n\n\n
\"Treviso<\/figure>\n\n\n\n

Une solution lin\u00e9aire offrant un spectre complet, parfaitement adapt\u00e9e \u00e0 la culture en int\u00e9rieur. L\u00e9g\u00e8re et facile \u00e0 installer, Treviso est id\u00e9ale pour les fermes verticales et les syst\u00e8mes d’\u00e9tag\u00e8res permettant ainsi d’augmenter et d’am\u00e9liorer la croissance des plantes. Pour en savoir plus, cliquez ici<\/a>.<\/p>\n\n\n\n

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Shop Treviso LED Grow Light<\/a><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"James Prietzel, chef de produit chez Intelligent LEDSolutions (ILS) James occupe le poste de chef de produit pour…\n","protected":false},"author":27,"featured_media":71028,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"csco_singular_sidebar":"","csco_page_header_type":"","csco_appearance_grid":"","csco_page_load_nextpost":"","csco_post_video_location":[],"csco_post_video_location_hash":"","csco_post_video_url":"","csco_post_video_bg_start_time":0,"csco_post_video_bg_end_time":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[182],"tags":[],"coauthors":[1736],"class_list":{"0":"post-71512","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-energie-et-alimentation-electrique","8":"cs-entry","9":"cs-video-wrap"},"yoast_head":"\nLe r\u00f4le crucial de la lumi\u00e8re rouge en horticulture : une exploration approfondie - KnowHow<\/title>\n<meta name=\"description\" content=\"Ind\u00e9pendamment du temps, de la saison ou de l'heure du jour, la croissance des plantes d\u00e9pend essentiellement de l'apport en lumi\u00e8re. 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