{"id":4215,"date":"2015-10-09T11:46:38","date_gmt":"2015-10-09T09:46:38","guid":{"rendered":"http:\/\/botanico.uclm.es\/project\/non-deep-complex-morphophysiological-dormancy-in-seeds-of-the-iberian-peninsula-endemic-geophytes-merendera-montana-colchicaceae-2\/"},"modified":"2022-12-21T18:32:42","modified_gmt":"2022-12-21T17:32:42","slug":"non-deep-complex-morphophysiological-dormancy-in-seeds-of-the-iberian-peninsula-endemic-geophytes-merendera-montana-colchicaceae","status":"publish","type":"project","link":"https:\/\/botanico.uclm.es\/en\/project\/non-deep-complex-morphophysiological-dormancy-in-seeds-of-the-iberian-peninsula-endemic-geophytes-merendera-montana-colchicaceae\/","title":{"rendered":"Non-deep complex morphophysiological dormancy in seeds of the Iberian Peninsula endemic geophytes Merendera montana (Colchicaceae)."},"content":{"rendered":"<style type=\"text\/css\"> \n#cmsms_row_69d7cef9bb5d3 .cmsms_row_outer_parent { \n\tpadding-top: 0px; \n} \n\n#cmsms_row_69d7cef9bb5d3 .cmsms_row_outer_parent { \n\tpadding-bottom: 50px; \n} \n\n\n#cmsms_button_69d7cef9bb728 { \n\ttext-align:center; \n} \n\n#cmsms_button_69d7cef9bb728 .cmsms_button:before { \n\tmargin-right:.5em; \n\tmargin-left:0; \n\tvertical-align:baseline; \n} \n\n#cmsms_button_69d7cef9bb728 .cmsms_button { \n\tfont-weight:100; \n\tfont-style:normal; \n\tpadding-right:20px; \n\tpadding-left:20px; \n} \n#cmsms_button_69d7cef9bb728 .cmsms_button:hover { \n} \n<\/style><div id=\"cmsms_row_69d7cef9bb5d3\" class=\"cmsms_row cmsms_color_scheme_default\">\n<div class=\"cmsms_row_outer_parent\">\n<div class=\"cmsms_row_outer\">\n<div class=\"cmsms_row_inner\">\n<div class=\"cmsms_row_margin\">\n<div class=\"cmsms_column one_first\">\n<div class=\"cmsms_text\">\n<h2 class=\"section-title\">Abstract<\/h2>\n<p>Heretofore, no detailed account was available on seed dormancy and germination of a member of the Colchicaceae (Liliales). Thus, the primary aim of this study was to do an in-depth investigation of the temperature requirements for dormancy break and germination in seeds of <em>Merendera montana<\/em> (Colchicaceae) at the embryo and whole-seed levels under near-natural temperatures in a non-heated frame shade-house and under controlled conditions in the laboratory. Mean embryo length in fresh seeds was <em>c<\/em>. 0.57\u00a0mm and embryos had to grow to at least 1.30\u00a0mm before radicle emergence. Embryos grew to full size and seeds completed germination (radicles emerged) when they were stratified at 28\/14\u00b0C for 60\u00a0d followed by a cool temperature for 60\u00a0d and then incubated at a cool temperature for 30\u00a0d. The optimum cool stratification temperature for dormancy-break was 10\u00b0C. Thus, after the moist pretreatment at 28\/14\u00b0C+10\u00b0C, radicle emergence was&gt;93% at all incubation temperatures (5, 15\/4 and 20\/7\u00b0C). In its natural habitat, <em>M. montana<\/em> seeds are dispersed in June, the embryo elongates to full size in autumn and radicles emerge from early November to early February. Although the shoot does not emerge until March and April, it is not physiologically dormant. The shoot emerged from 80% of the radicle-emerged seeds in 13\u00a0d at 20\/7\u00b0C without a previous cold pretreatment. Seeds of <em>M. montana<\/em> have non-deep complex morphophysiological dormancy, C<sub>1b1a<\/sub>B-C<sub>1a<\/sub>. This is the first study on seeds with complex MPD to show a delay in shoot emergence following root emergence despite the shoot being physiologically non-dormant.<\/p>\n<p class=\"section-title\"><strong>Keywords:\u00a0<\/strong>Colchicaceae,\u00a0embryo growth,\u00a0germination,\u00a0gibberellic acid,\u00a0<em>Merendera montana,\u00a0<\/em>morphophysiological dormancy,\u00a0seed germination.<\/p>\n<\/div>\n\n<div id=\"cmsms_button_69d7cef9bb728\" class=\"button_wrap\"><a href=\"http:\/\/journals.cambridge.org\/action\/displayAbstract?fromPage=online&#038;aid=8423119\" class=\"cmsms_button\" target=\"_blank\">Link to the article<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":4213,"menu_order":0,"comment_status":"open","ping_status":"open","template":"","format":"standard","meta":[],"pj-categs":[79],"pj-tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Non-deep complex morphophysiological dormancy in seeds of the Iberian Peninsula endemic geophytes Merendera montana (Colchicaceae). - Instituto Bot\u00e1nico<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/botanico.uclm.es\/en\/project\/non-deep-complex-morphophysiological-dormancy-in-seeds-of-the-iberian-peninsula-endemic-geophytes-merendera-montana-colchicaceae\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Non-deep complex morphophysiological dormancy in seeds of the Iberian Peninsula endemic geophytes Merendera montana (Colchicaceae). - Instituto Bot\u00e1nico\" \/>\n<meta property=\"og:url\" content=\"https:\/\/botanico.uclm.es\/en\/project\/non-deep-complex-morphophysiological-dormancy-in-seeds-of-the-iberian-peninsula-endemic-geophytes-merendera-montana-colchicaceae\/\" \/>\n<meta property=\"og:site_name\" content=\"Instituto Bot\u00e1nico\" \/>\n<meta property=\"article:modified_time\" content=\"2022-12-21T17:32:42+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/botanico.uclm.es\/wp-content\/uploads\/2015\/10\/SSR.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"225\" \/>\n\t<meta property=\"og:image:height\" content=\"300\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\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:\/\/botanico.uclm.es\/en\/project\/non-deep-complex-morphophysiological-dormancy-in-seeds-of-the-iberian-peninsula-endemic-geophytes-merendera-montana-colchicaceae\/\",\"url\":\"https:\/\/botanico.uclm.es\/en\/project\/non-deep-complex-morphophysiological-dormancy-in-seeds-of-the-iberian-peninsula-endemic-geophytes-merendera-montana-colchicaceae\/\",\"name\":\"Non-deep complex morphophysiological dormancy in seeds of the Iberian Peninsula endemic geophytes Merendera montana (Colchicaceae). - 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