{"id":14023,"date":"2026-06-20T12:32:14","date_gmt":"2026-06-20T12:32:14","guid":{"rendered":"https:\/\/dev.iita.org\/news-item\/tricot-approach-cassava-and-potato-trials-show-promising-results-in-rwanda\/"},"modified":"2026-06-29T21:33:56","modified_gmt":"2026-06-29T21:33:56","slug":"tricot-approach-cassava-and-potato-trials-show-promising-results-in-rwanda","status":"publish","type":"news-item","link":"https:\/\/iita.org\/fr\/news-item\/tricot-approach-cassava-and-potato-trials-show-promising-results-in-rwanda\/","title":{"rendered":"Tricot approach: Cassava and potato trials show promising results in Rwanda"},"content":{"rendered":"\n<a href=\"https:\/\/www.iita.org\/\">IITA<\/a> and partners\u2014the Rwanda Agriculture and Animal Resources Development Board (RAB), the International Potato Center (CIP), One Acre Fund (OAF), and the Alliance of Bioversity International and CIAT (the Alliance)\u2014are implementing the triadic comparison of technology options (tricot) methodology to help farmers identify the most suitable crop varieties for the local conditions of their farm. This approach has been used since 2020 to identify novel varieties of potato and cassava preferred by farmers for release.\n\nIn November 2021, the tricot partners (IITA, RAB, CIP, OAF, and the Alliance) gathered in Rwanda to present and discuss the results from the two years of trials and plan potential next steps for trials and potential mainstreaming of tricot into RAB and OAF. Both RAB and OAF demonstrated interest in a stepped adoption of tricot as part of their variety selection activities.\n\n<figure id=\"attachment_23861\" aria-describedby=\"caption-attachment-23861\" style=\"width: 820px\" class=\"wp-caption aligncenter\"><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-23861 size-full\" src=\"https:\/\/iita.org\/wp-content\/uploads\/2026\/06\/Tricot-approach-p1.png\" alt=\"\" width=\"820\" height=\"547\" \/><figcaption id=\"caption-attachment-23861\" class=\"wp-caption-text\">Consumer analysis for the tricot potato trials.<\/figcaption><\/figure>\n\nOAF Agricultural Research Specialist Elyse Tuyishime commented, \u201cWe have been using the Randomized Complete Block Design (RCBD) approach in our field trials, which requires all participants to have the same varieties. Alternatively, the tricot approach uses an incomplete block design, allowing participants to use different varieties. Since working on this project, I have realized that this [tricot] approach is very efficient because a researcher does not conduct the trial; farmers lead the research by planting trials under their normal practices and conditions. Moreover, for the RCBD approach, a farmer is passive; therefore, the trials inform primarily a researcher, not a farmer.\u201d\n\nShe noted that because farmers actively conduct the trials using the tricot approach, the results inform both the farmer and researcher. Further, the tricot approach is cheaper, as field visits are not necessary, and the approach also facilitates data sharing.\u201d\n<h2>Tricot trials in Rwanda<\/h2>\nTricot engages farmers as \u201cfarmer researchers\u201d in testing or validating new crop varieties and other promising technologies. Each participating farmer executes the mini-task of evaluating only three varieties, out of a range to be tested, in their fields under their actual farm conditions and usual agricultural practices. The methodology does not specify management practices, simply requesting farmers to treat the plots as they usually do their own.\n\nThe farmer ranks their preferred variety relative to a suite of traits (e.g., yield, disease resistance, taste, marketability). The methodology works on the premise of external validity to validate varieties.\n\nDuring the project, RAB, OAF, IITA, CIP, and the Alliance researchers monitored the trials using digital tools. Data collected and recorded through phone-based data collection applications are analyzed in ClimMob (tricot\u2019s analytics application). Farmers from Gicumbi, Nyabihu, and Nyamagabe participated in the potato trials and Bugesera, Kamonyi, Nyanza, and Ruhango, in the cassava trials.\n\n<figure id=\"attachment_23862\" aria-describedby=\"caption-attachment-23862\" style=\"width: 300px\" class=\"wp-caption alignleft\"><img decoding=\"async\" class=\"size-medium wp-image-23862\" src=\"https:\/\/iita.org\/wp-content\/uploads\/2026\/06\/Tricot-approach-p2-300x146-1.jpg\" alt=\"\" width=\"300\" height=\"146\" \/><figcaption id=\"caption-attachment-23862\" class=\"wp-caption-text\">Farmers in Ruhango district, Rwanda observing cassava root yield from tricot trials.<\/figcaption><\/figure>\n\nThe first season of cassava trials was recently harvested, with farmers and researchers measuring the cassava yield together, thus enabling yield comparisons across varieties and agroecological zones.\n\n\u201cFrom the yield that I am seeing right now, taking into consideration that these cassava varieties have only been in the ground for 11 months (our local cassava varieties normally mature from 12 to 15 months), these varieties are very promising. I think these varieties will increase cassava production in our area. I have already prepared land to plant these cuttings in the next agricultural season,\u201d said Daniel Habimana, one of the participating farmers from Kigoma sector, Nyanza District, who evaluated the novel cassava varieties using the tricot approach.\n\nThe simplicity of tricot allows its use across value chains, not just by producers but also by processors and consumers. More than 100 consumers across Rwanda recently shared their preferences on potato varieties using the tricot approach. Participants were invited to rank their preferred potato varieties, identifying their favorite in terms of taste, appearance, and other characteristics. The initial results from this exercise highlighted that consumers\u2019 preferences were notably different from producers. These results reinforce the need for a full value-chain analysis of varieties before recommending them for release.\n\nThe current phase of the project will conclude in Rwanda in December 2021. Despite this, the benefits of the tricot approach are evident by both RAB and OAF showing interest in gradually adopting it for their variety selection research. Following this, the Bill &amp; Melinda Gates Foundation recently approved a pan-African project that will see these activities continue in Rwanda.\n","protected":false},"excerpt":{"rendered":"<p>IITA and partners\u2014the Rwanda Agriculture and Animal Resources Development Board (RAB), the International Potato Center (CIP), One Acre Fund (OAF), [&hellip;]<\/p>\n","protected":false},"featured_media":14024,"template":"","meta":{"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":"","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-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":"","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-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":"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":""},"mobile":{"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":""}}},"tags":[707],"science-area":[],"program":[],"location":[],"news-type":[],"hub":[],"crop":[],"impact-areas":[],"item-year":[199],"class_list":["post-14023","news-item","type-news-item","status-publish","has-post-thumbnail","hentry","tag-ciatcipiita-news-no-2615oafrabrwandatricot","item-year-199"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - 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