Browsing Brage INN by Author "van Etten, Jacob"

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    • chirps: API Client for the CHIRPS Precipitation Data in R 

      de Sousa, Kaue; Sparks, Adam H.; Ashmall, William; van Etten, Jacob; Solberg, Svein Øivind (Peer reviewed; Journal article, 2020)
      The chirps package provides functionalities for reproducible analysis in R (R Core Team, 2020) using the CHIRPS (Funk et al., 2015) data. CHIRPS is daily precipitation data set developed by the Climate Hazards Group (Funk ...

    • Climate variability indices for ecological and crop models in R: the climatrends package 

      de Sousa, Kaue; van Etten, Jacob; Neby, Magne; Solberg, Svein Øivind (Peer reviewed; Journal article, 2023)
      Abiotic factors play an important role in most ecological and crop systems that depend on certain levels of temperature, light and precipitation to initiate important physiological events (Schulze et al., 2019). Understanding ...

    • ClimMob: Software to support experimental citizen science in agriculture 

      Quiros, Carlos F.; de Sousa, Kaue; Steinke, Jonathan; Madriz, Brandon; Laporte, Marie-Angelique; Arnaud, Elizabeth; Manners, Rhys; Ortiz-Crespo, Berta; Müller, Anna; van Etten, Jacob (Peer reviewed; Journal article, 2023)
      Experimental citizen science offers new ways to organize on-farm testing of crop varieties and other agronomic options. Its implementation at scale requires software that streamlines the process of experimental design, ...

    • Consumer Preference Testing of Boiled Sweetpotato Using Crowdsourced Citizen Science in Ghana and Uganda 

      Moyo, Mukani; Ssali, Reuben; Namanda, Sam; Nakitto, Mariam; Dery, Eric K.; Akansake, Daniel; Adjebeng-Danquah, Joseph; van Etten, Jacob; de Sousa, Kaue; Lindqvist-Kreuze, Hannele; Carey, Edward; Muzhingi, Tawanda (Peer reviewed; Journal article, 2021)
      Crowdsourced citizen science is an emerging approach in plant sciences. The triadic comparison of technologies (tricot) approach has been successfully utilized by demand-led breeding programmes to identify varieties for ...

    • Crop variety management for climate adaptation supported by citizen science 

      van Etten, Jacob; de Sousa, Kaue; et, al (26 medforfattere) (Peer reviewed; Journal article, 2019)

    • Data-driven approaches can harness crop diversity to address heterogeneous needs for breeding products 

      van Etten, Jacob; de Sousa, Kaue; Cairns, Jill E.; Solberg, Svein Øivind; Teeken, Béla; Tufan, Hale Ann; Dell'Acqua, Matteo; Fadda, Carlo; Guereña, David; van Heerwaarden, Joost; Assefa, Teshale; Manners, Rhys; Müller, Anna; Pè, Mario Enrico; Polar, Vivian; Ramirez-Villegas, Julian (Peer reviewed; Journal article, 2023)
      This perspective describes the opportunities and challenges of data-driven approaches for crop diversity management (genebanks and breeding) in the context of agricultural research for sustainable development in the Global ...

    • Data-driven decentralized breeding increases prediction accuracy in a challenging crop production environment 

      de Sousa, Kaue; van Etten, Jacob; Poland, Jesse A.; Fadda, Carlo; Jannink, Jean-Luc; Gebrehawaryat Kidane, Yosef; Fantahun Lakew, Basazen; Kassahun Mengistu, Dejene; Pe, Mario Enrico; Solberg, Svein Øivind; Dell’Acqua, Matteo (Peer reviewed; Journal article, 2021)
      Crop breeding must embrace the broad diversity of smallholder agricultural systems to ensure food security to the hundreds of millions of people living in challenging production environments. This need can be addressed by ...

    • Drivers of consumer acceptability of cassava gari-eba food products across cultural and environmental settings using the triadic comparison of technologies approach (tricot) 

      Olaosebikan, Olamide; Bello, Abolore; de Sousa, Kaue; Ndjouenkeu, Robert; Adesokan, Michael; Alamu, Emmanuel; Agbona, Afolabi; van Etten, Jacob; Kegah, Franklin Ngoualem; Dufour, Dominique; Bouniol, Alexandre; Teeken, Béla (Peer reviewed; Journal article, 2023)
      Nigeria and Cameroon are multi-ethnic countries with diverse preferences for food characteristics. This study aimed to inform cassava breeders on consumer-prioritized eba quality traits. Consumer testing was carried out ...

    • gosset: An R package for analysis and synthesis of ranking data in agricultural experimentation 

      de Sousa, Kaue; Brown, David; van Etten, Jacob; Steinke, Jonathan (Peer reviewed; Journal article, 2023)
      To derive insights from data, researchers working on agricultural experiments need appropriate data management and analysis tools. To ensure that workflows are reproducible and can be applied on a routine basis, programmatic ...

    • Group-based and citizen science on-farm variety selection approaches for bean growers in Central America 

      Occelli, Martina; Sellare, Jorge; de Sousa, Kaue; Dell’Acqua, Matteo; Mercado, Leida; Paredes, Saul; Robalino, Juan; Rosas, Juan Carlos; van Etten, Jacob (Peer reviewed; Journal article, 2024)
      Participatory approaches for crop variety testing can help breeding teams to incorporate traditional knowledge and consider site-specific sociocultural complexities. However, traditional participatory approaches have ...

    • Rank-based data synthesis of heterogeneous trials to identify the effects of climatic factors on the reaction of Musa genotypes to black leaf streak disease 

      Brown, David; de Bruin, Sytze; de Sousa, Kaue; Abadie, Catherine; Carpentier, Sebastien; Machida, Lewis; van Etten, Jacob (Peer reviewed; Journal article, 2023)
      Synthesis of crop trial data can generate insights that are not available from the analysis of individual studies, but such synthesis is often constrained by the heterogeneity of data among studies. Rank-based data synthesis ...

    • The tricot approach: an agile framework for decentralized on-farm testing supported by citizen science. A retrospective 

      de Sousa, Kaue; van Etten, Jacob; Manners, Rhys; Abidin, Erna; Abdulmalik, Rekiya O.; Abolore, Bello; Acheremu, Kwabena; Angudubo, Stephen; Aguilar, Amilcar; Arnaud, Elizabeth; Babu, Adventina; Barrios, Mirna; Benavente, Grecia; Boukar, Ousmane; Cairns, Jill E.; Carey, Edward; Daudi, Happy; Dawud, Maryam; Edughaen, Gospel; Ellison, James; Esuma, Williams; Gaya Mohammed, Sanusi; Gevel van de, Jeske; Gomez, Marvin; Heerwaarden van, Joost; Iragaba, Paula; Kadege, Edith; Assefa, Teshale M.; Kalemera, Sylvia; Kasubiri, Fadhili Salum; Kawuki, Robert; Kidane, Yosef Gebrehawaryat; Kilango, Michael; Kulembeka, Heneriko; Kwadwo, Adofo; Madriz, Brandon; Masumba, Ester; Mbiu, Julius; Mendes, Thiago; Müller, Anna; Moyo, Mukani; Mtunda, Kiddo; Muzhingi, Tawanda; Muungani, Dean; Mwenda, Emmanuel T.; Nadigatla, Ganga Rao; Nanyonjo, Ann Ritah; N’Danikou, Sognigbé; Nduwumuremyi, Athanase; Nshimiyimana, Jean Claude; Nuwamanya, Ephraim; Nyirahabimana, Hyacinthe; Occelli, Martina; Olaosebikan, Olamide; Ongom, Patrick Obia; Ortiz‑Crespo, Berta; Oteng‑Fripong, Richard; Ozimati, Alfred; Owoade, Durodola; Quiros, Carlos F.; Rosas, Juan Carlos; Rukundo, Placide; Rutsaert, Pieter; Sibomana, Milindi; Sharma, Neeraj; Shida, Nestory; Steinke, Jonathan; Ssali, Reuben; Suchini, Jose Gabriel; Teeken, Béla; Tengey, Theophilus Kwabla; Tufan, Hale Ann; Tumwegamire, Silver; Tuyishime, Elyse; Ulzen, Jacob; Umar, Muhammad Lawan; Onwuka, Samuel; Ugo Madu, Tessy; Voss, Rachel C.; Yeye, Mary; Zaman‑Allah, Mainassara (Peer reviewed; Journal article, 2024)
      Matching crop varieties to their target use context and user preferences is a challenge faced by many plant breeding programs serving smallholder agriculture. Numerous participatory approaches proposed by CGIAR and other ...