{"id":842,"date":"2026-07-08T18:14:51","date_gmt":"2026-07-08T16:14:51","guid":{"rendered":"https:\/\/sylphagro.fr\/?p=842"},"modified":"2026-09-08T19:02:47","modified_gmt":"2026-09-08T17:02:47","slug":"measuring-plants-from-the-sky","status":"publish","type":"post","link":"https:\/\/sylphagro.fr\/index.php\/2026\/07\/08\/measuring-plants-from-the-sky\/","title":{"rendered":"Measuring plants from the sky?"},"content":{"rendered":"<div class=\"wp-block-pdfemb-pdf-embedder-viewer\"><a href=\"https:\/\/sylphagro.fr\/wp-content\/uploads\/2026\/09\/Height_Sunflower.pdf\" class=\"pdfemb-viewer\" style=\"\" data-width=\"max\" data-height=\"max\" data-toolbar=\"bottom\" data-toolbar-fixed=\"off\">Height_Sunflower<\/a><\/div>\n\n\n<p class=\"wp-block-paragraph\">Measuring plants from the sky?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A look back at summer 2025 and the collaboration with the <strong>sunflower research team<\/strong> <strong>Syngenta France<\/strong>.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Multi-criteria phenotyping<\/strong> using drones was carried out on sunflower nurseries.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">One of the most basic characteristics to measure manually, but also one of the most tedious, is the <strong>average height of each row<\/strong>. This is especially true when it comes to the numerous rows in a nursery, with plots of only one row and six meters in length!<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The powerful tools of the <strong>Solvi <\/strong>platform made it easy to study the influence of multiple parameters on measurement accuracy:&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>flight altitude<\/li>\n\n\n\n<li>clear or overcast sky<\/li>\n\n\n\n<li>visible or multispectral cameras<\/li>\n\n\n\n<li>plant height statistics (average, minimum, maximum, percentiles)<\/li>\n\n\n\n<li>height reference systems (bare ground around the plot or Canopy Height Model)<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">With the most favorable combination of these parameters and for 825 plots, we obtained a high correlation with manual plot measurements, i.e., <strong>R2=0.779<\/strong> (see graph).&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">According to the team, this is sufficient accuracy for selection and a credible alternative to manual measurement.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Measuring plants from the sky? A look back at summer 2025 and the collaboration with the sunflower research team Syngenta [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":843,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[6],"tags":[],"class_list":["post-842","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-in-the-field"],"_links":{"self":[{"href":"https:\/\/sylphagro.fr\/index.php\/wp-json\/wp\/v2\/posts\/842","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sylphagro.fr\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sylphagro.fr\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sylphagro.fr\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sylphagro.fr\/index.php\/wp-json\/wp\/v2\/comments?post=842"}],"version-history":[{"count":5,"href":"https:\/\/sylphagro.fr\/index.php\/wp-json\/wp\/v2\/posts\/842\/revisions"}],"predecessor-version":[{"id":860,"href":"https:\/\/sylphagro.fr\/index.php\/wp-json\/wp\/v2\/posts\/842\/revisions\/860"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sylphagro.fr\/index.php\/wp-json\/wp\/v2\/media\/843"}],"wp:attachment":[{"href":"https:\/\/sylphagro.fr\/index.php\/wp-json\/wp\/v2\/media?parent=842"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sylphagro.fr\/index.php\/wp-json\/wp\/v2\/categories?post=842"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sylphagro.fr\/index.php\/wp-json\/wp\/v2\/tags?post=842"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}