{"id":455,"date":"2025-10-24T20:16:45","date_gmt":"2025-10-24T20:16:45","guid":{"rendered":"https:\/\/stagingen.saffrona.eu\/?p=455"},"modified":"2026-10-11T12:24:28","modified_gmt":"2026-10-11T12:24:28","slug":"saffron-drought-tolerance","status":"publish","type":"post","link":"https:\/\/saffrona.eu\/en\/saffron-drought-tolerance\/","title":{"rendered":"Saffron Drought Tolerance: Research on Fibrous Roots and Penconazole"},"content":{"rendered":"<article class=\"saffrona-academy-story\"><style>.saffrona-academy-story{max-width:780px;margin:auto;color:#343039;font-size:17px;line-height:1.85}.saffrona-academy-story h2{color:#56346b;font-size:clamp(25px,3vw,32px);line-height:1.3;margin:44px 0 18px}.saffrona-academy-story h3{color:#56346b;font-size:21px}.saffrona-academy-story p{margin:0 0 20px}.saffrona-academy-story a{color:#684180;text-decoration:underline;text-underline-offset:3px}.saffrona-academy-story .academy-note{background:#f6f1f8;border-left:3px solid #805698;padding:24px;margin:28px 0;border-radius:0 12px 12px 0}.saffrona-academy-story nav{background:#faf8f5;border:1px solid #e8e0eb;padding:24px;border-radius:14px}.saffrona-academy-story figure{margin:32px 0}.saffrona-academy-story img{width:100%;height:auto;border-radius:16px}.saffrona-academy-story figcaption{font-size:13px;color:#706876}.saffrona-academy-story ul{padding-left:22px}.saffrona-academy-story li{margin:8px 0}@media(max-width:600px){.saffrona-academy-story{font-size:16px;line-height:1.8}.saffrona-academy-story nav,.saffrona-academy-story .academy-note{padding:20px}.saffrona-academy-story h2{margin-top:34px}}<\/style><p><strong>Saffron drought tolerance<\/strong> is the focus of a 2025 study in <em>Scientific Reports<\/em>. Researchers examined the role of fibrous roots in the response of <em>Crocus sativus<\/em> to simulated drought and the effects of penconazole pretreatment.<\/p><aside class=\"academy-note\"><strong>Research context<\/strong><p>Penconazole is a triazole fungicide with plant-growth-regulating properties. This controlled experiment is not a field-use recommendation or evidence that a product is authorised for saffron cultivation.<\/p><\/aside><h2>Key findings<\/h2><ul><li><strong>Roots and leaves responded differently:<\/strong> fibrous roots had lower hydrogen peroxide (H\u2082O\u2082) and malondialdehyde (MDA) levels than leaves. Root peroxidase (POX) activity was reported as 600\u20132,000 times higher.<\/li><li><strong>Antioxidant responses:<\/strong> pretreatment with 15\u201325 mg\/L penconazole increased root superoxide dismutase (SOD) and catalase (CAT) activity, with reported increases up to 275% and 189%, respectively. It also reduced lipid-peroxidation markers and altered proline levels.<\/li><li><strong>Leaf pigments:<\/strong> under simulated drought, penconazole increased carotenoid levels and the chlorophyll-a\/chlorophyll-b ratio.<\/li><li><strong>Growth measurements:<\/strong> PEG-induced stress affected leaves, roots and corms. Some growth measurements, including corm dry weight, improved under particular treatments.<\/li><\/ul><figure><img decoding=\"async\" src=\"https:\/\/saffrona.eu\/en\/wp-content\/uploads\/2025\/10\/dry-1024x501.png\" alt=\"Illustration accompanying research on saffron fibrous roots and drought stress\" loading=\"lazy\"><\/figure><h2>What does this mean for practice and research?<\/h2><p>The study highlights fibrous roots as an important part of saffron\u2019s stress response. It provides a reason to investigate root health and antioxidant defence more closely.<\/p><p>The chemical pretreatment results require separate field validation. Concentrations used in an experiment are not instructions for growers, and physiological markers are not the same as demonstrated improvements in commercial harvests.<\/p><p>Water management, drainage, soil condition and locally appropriate agronomic advice remain important. The experiment does not establish a general irrigation or fertiliser programme.<\/p><h2>How was the experiment conducted?<\/h2><p>The researchers used controlled experiments with polyethylene glycol (PEG) to induce water stress at 0\u201315% and compared physiological and growth responses after penconazole pretreatment.<\/p><p>The results suggest that stronger antioxidant activity in fibrous roots can help limit oxidative damage under these conditions. How well this transfers to ordinary field drought remains a research question.<\/p><aside class=\"academy-note\"><strong>Original study<\/strong><p><a href=\"https:\/\/www.nature.com\/articles\/s41598-025-03374-0\" target=\"_blank\" rel=\"noopener noreferrer\"><em>Pivotal role of fibrous roots in drought tolerance of saffron (Crocus sativus L.) and mitigation of oxidative stress by penconazole.<\/em><\/a> Scientific Reports (2025).<\/p><p>Continue with our articles on <a href=\"https:\/\/saffrona.eu\/en\/saffron-and-climate-change\/\">saffron and climate change<\/a> and <a href=\"https:\/\/saffrona.eu\/en\/light-intensity-and-saffron-corm-yield\/\">light intensity and corm yield<\/a>, or explore the <a href=\"https:\/\/saffrona.eu\/en\/saffron-academy\/\">Saffron Academy<\/a>.<\/p><\/aside><\/article>","protected":false},"excerpt":{"rendered":"<p>Saffron drought tolerance is the focus of a 2025 study in Scientific Reports. Researchers examined the role of fibrous roots in the response of Crocus&#8230;<\/p>\n","protected":false},"author":1,"featured_media":456,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21,26,25],"tags":[120,34],"class_list":["post-455","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-saffron-research","category-afghan-saffron","category-saffron-innovation","tag-saffron-academy","tag-saffrona"],"_links":{"self":[{"href":"https:\/\/saffrona.eu\/en\/wp-json\/wp\/v2\/posts\/455","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/saffrona.eu\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/saffrona.eu\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/saffrona.eu\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/saffrona.eu\/en\/wp-json\/wp\/v2\/comments?post=455"}],"version-history":[{"count":4,"href":"https:\/\/saffrona.eu\/en\/wp-json\/wp\/v2\/posts\/455\/revisions"}],"predecessor-version":[{"id":3876,"href":"https:\/\/saffrona.eu\/en\/wp-json\/wp\/v2\/posts\/455\/revisions\/3876"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/saffrona.eu\/en\/wp-json\/wp\/v2\/media\/456"}],"wp:attachment":[{"href":"https:\/\/saffrona.eu\/en\/wp-json\/wp\/v2\/media?parent=455"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/saffrona.eu\/en\/wp-json\/wp\/v2\/categories?post=455"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/saffrona.eu\/en\/wp-json\/wp\/v2\/tags?post=455"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}