{"id":83102,"date":"2025-06-12T13:53:45","date_gmt":"2025-06-12T17:53:45","guid":{"rendered":"https:\/\/mrnf.gouv.qc.ca\/?post_type=cpt_publication&#038;p=83102"},"modified":"2025-06-12T13:53:47","modified_gmt":"2025-06-12T17:53:47","slug":"variations-ring-width-density-tracheid-morphology-tamarack-wood-larix-laricina","status":"publish","type":"cpt_publication","link":"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/variations-ring-width-density-tracheid-morphology-tamarack-wood-larix-laricina\/","title":{"rendered":"Variations in ring width density and tracheid morphology of tamarack wood (Larix laricina)"},"content":{"rendered":"\n<p><strong>Published in Canadian Journal of Forest Research 55: 1-15. <a href=\"https:\/\/doi.org\/10.1139\/cjfr-2024-0288\" target=\"_blank\" rel=\"noopener\">https:\/\/doi.org\/10.1139\/cjfr-2024-0288<\/a><\/strong><\/p>\n<p>The tree genetic improvement programs focus on tree growth with little attention to wood quality despite determining the potential of wood for various applications. This study investigated the intra-ring and intra-tree variations of wood growth, density, tracheid length, and width of Larix laricina trees and estimated their quantitative genetic parameters of a 30-year-old progeny test using destructive and nondestructive samplings. The average ring density was 491\u00a0kg\/m3. The proportion of latewood remains uniform and constant within the tree at about 24%. The tracheids were fine and long, averaging 25\u00a0\u00b5m in diameter and 2.23\u00a0mm in length for earlywood and 25\u00a0\u00b5m in diameter and 2.55\u00a0mm in length for latewood. The cambial age has a significant effect on almost all wood properties. A positive and significant phenotypic and genotypic correlation between density components was found for juvenile and mature wood. Tracheid morphological properties were positively correlated with each other and negatively correlated with wood density and growth components, except for earlywood density. Heritability estimates indicate that wood density components were under moderate to strong genetic control. These results showed that wood quality traits are important selection criteria for breeding programs to improve wood quality while maintaining a high growth rate.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Published in Canadian Journal of Forest Research 55: 1-15. https:\/\/doi.org\/10.1139\/cjfr-2024-0288 The tree genetic improvement programs focus on tree growth with little attention to wood quality despite determining the potential of wood for various applications. This study investigated the intra-ring and intra-tree variations of wood growth, density, tracheid length, and width of Larix laricina trees and [&hellip;]<\/p>\n","protected":false},"template":"","format":"standard","cptt_secteur":[1179],"cptt_theme":[1186],"cptt_categ_publi":[],"cptt_auteurs_ministeriels":[1105],"class_list":["post-83102","cpt_publication","type-cpt_publication","status-publish","format-standard","hentry","cptt_secteur-forests","cptt_theme-forest-genetics","cptt_auteurs_ministeriels-m-perron"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Variations in ring width density and tracheid morphology of tamarack wood (Larix laricina) - Minist\u00e8re des Ressources naturelles et des For\u00eats<\/title>\n<meta name=\"description\" content=\"This study investigated the intra-ring and intra-tree variations of wood growth, density, tracheid length, and width of Larix laricina (...)\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/variations-ring-width-density-tracheid-morphology-tamarack-wood-larix-laricina\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Variations in ring width density and tracheid morphology of tamarack wood (Larix laricina) - Minist\u00e8re des Ressources naturelles et des For\u00eats\" \/>\n<meta property=\"og:description\" content=\"This study investigated the intra-ring and intra-tree variations of wood growth, density, tracheid length, and width of Larix laricina (...)\" \/>\n<meta property=\"og:url\" content=\"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/variations-ring-width-density-tracheid-morphology-tamarack-wood-larix-laricina\/\" \/>\n<meta property=\"og:site_name\" content=\"Minist\u00e8re des Ressources naturelles et des For\u00eats\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/RessourcesNaturellesForets\/\" \/>\n<meta property=\"article:modified_time\" content=\"2025-06-12T17:53:47+00:00\" \/>\n<meta property=\"og:image\" content=\"\/wp-content\/uploads\/Image-g%c3%a9n%c3%a9rale-hiver_FB.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"630\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@mrnfqc\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/variations-ring-width-density-tracheid-morphology-tamarack-wood-larix-laricina\/\",\"url\":\"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/variations-ring-width-density-tracheid-morphology-tamarack-wood-larix-laricina\/\",\"name\":\"Variations in ring width density and tracheid morphology of tamarack wood (Larix laricina) - Minist\u00e8re des Ressources naturelles et des For\u00eats\",\"isPartOf\":{\"@id\":\"https:\/\/mrnf.gouv.qc.ca\/#website\"},\"datePublished\":\"2025-06-12T17:53:45+00:00\",\"dateModified\":\"2025-06-12T17:53:47+00:00\",\"description\":\"This study investigated the intra-ring and intra-tree variations of wood growth, density, tracheid length, and width of Larix laricina (...)\",\"breadcrumb\":{\"@id\":\"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/variations-ring-width-density-tracheid-morphology-tamarack-wood-larix-laricina\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/variations-ring-width-density-tracheid-morphology-tamarack-wood-larix-laricina\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/variations-ring-width-density-tracheid-morphology-tamarack-wood-larix-laricina\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Accueil\",\"item\":\"https:\/\/mrnf.gouv.qc.ca\/en\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Publications\",\"item\":\"https:\/\/mrnf.gouv.qc.ca\/nos-publications\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Variations in ring width density and tracheid morphology of tamarack wood (Larix laricina)\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/mrnf.gouv.qc.ca\/#website\",\"url\":\"https:\/\/mrnf.gouv.qc.ca\/\",\"name\":\"Minist\u00e8re des Ressources naturelles et des For\u00eats\",\"description\":\"Prototype WordPress\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/mrnf.gouv.qc.ca\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Variations in ring width density and tracheid morphology of tamarack wood (Larix laricina) - Minist\u00e8re des Ressources naturelles et des For\u00eats","description":"This study investigated the intra-ring and intra-tree variations of wood growth, density, tracheid length, and width of Larix laricina (...)","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/variations-ring-width-density-tracheid-morphology-tamarack-wood-larix-laricina\/","og_locale":"en_US","og_type":"article","og_title":"Variations in ring width density and tracheid morphology of tamarack wood (Larix laricina) - Minist\u00e8re des Ressources naturelles et des For\u00eats","og_description":"This study investigated the intra-ring and intra-tree variations of wood growth, density, tracheid length, and width of Larix laricina (...)","og_url":"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/variations-ring-width-density-tracheid-morphology-tamarack-wood-larix-laricina\/","og_site_name":"Minist\u00e8re des Ressources naturelles et des For\u00eats","article_publisher":"https:\/\/www.facebook.com\/RessourcesNaturellesForets\/","article_modified_time":"2025-06-12T17:53:47+00:00","og_image":[{"width":1200,"height":630,"url":"\/wp-content\/uploads\/Image-g%c3%a9n%c3%a9rale-hiver_FB.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_site":"@mrnfqc","twitter_misc":{"Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/variations-ring-width-density-tracheid-morphology-tamarack-wood-larix-laricina\/","url":"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/variations-ring-width-density-tracheid-morphology-tamarack-wood-larix-laricina\/","name":"Variations in ring width density and tracheid morphology of tamarack wood (Larix laricina) - Minist\u00e8re des Ressources naturelles et des For\u00eats","isPartOf":{"@id":"https:\/\/mrnf.gouv.qc.ca\/#website"},"datePublished":"2025-06-12T17:53:45+00:00","dateModified":"2025-06-12T17:53:47+00:00","description":"This study investigated the intra-ring and intra-tree variations of wood growth, density, tracheid length, and width of Larix laricina (...)","breadcrumb":{"@id":"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/variations-ring-width-density-tracheid-morphology-tamarack-wood-larix-laricina\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/variations-ring-width-density-tracheid-morphology-tamarack-wood-larix-laricina\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/variations-ring-width-density-tracheid-morphology-tamarack-wood-larix-laricina\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Accueil","item":"https:\/\/mrnf.gouv.qc.ca\/en\/"},{"@type":"ListItem","position":2,"name":"Publications","item":"https:\/\/mrnf.gouv.qc.ca\/nos-publications\/"},{"@type":"ListItem","position":3,"name":"Variations in ring width density and tracheid morphology of tamarack wood (Larix laricina)"}]},{"@type":"WebSite","@id":"https:\/\/mrnf.gouv.qc.ca\/#website","url":"https:\/\/mrnf.gouv.qc.ca\/","name":"Minist\u00e8re des Ressources naturelles et des For\u00eats","description":"Prototype WordPress","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/mrnf.gouv.qc.ca\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"}]}},"_links":{"self":[{"href":"https:\/\/mrnf.gouv.qc.ca\/en\/wp-json\/wp\/v2\/cpt_publication\/83102","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mrnf.gouv.qc.ca\/en\/wp-json\/wp\/v2\/cpt_publication"}],"about":[{"href":"https:\/\/mrnf.gouv.qc.ca\/en\/wp-json\/wp\/v2\/types\/cpt_publication"}],"version-history":[{"count":1,"href":"https:\/\/mrnf.gouv.qc.ca\/en\/wp-json\/wp\/v2\/cpt_publication\/83102\/revisions"}],"predecessor-version":[{"id":83104,"href":"https:\/\/mrnf.gouv.qc.ca\/en\/wp-json\/wp\/v2\/cpt_publication\/83102\/revisions\/83104"}],"wp:attachment":[{"href":"https:\/\/mrnf.gouv.qc.ca\/en\/wp-json\/wp\/v2\/media?parent=83102"}],"wp:term":[{"taxonomy":"cptt_secteur","embeddable":true,"href":"https:\/\/mrnf.gouv.qc.ca\/en\/wp-json\/wp\/v2\/cptt_secteur?post=83102"},{"taxonomy":"cptt_theme","embeddable":true,"href":"https:\/\/mrnf.gouv.qc.ca\/en\/wp-json\/wp\/v2\/cptt_theme?post=83102"},{"taxonomy":"cptt_categ_publi","embeddable":true,"href":"https:\/\/mrnf.gouv.qc.ca\/en\/wp-json\/wp\/v2\/cptt_categ_publi?post=83102"},{"taxonomy":"cptt_auteurs_ministeriels","embeddable":true,"href":"https:\/\/mrnf.gouv.qc.ca\/en\/wp-json\/wp\/v2\/cptt_auteurs_ministeriels?post=83102"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}