Trait prioritization in crop breeding programs: a scoping review on tools and methods

Occelli, Martina; Mukerjee, Rishabh; Miller, Christian; Porciello, Jaron; Puerto, Sergio; Garner, Elisabeth; Funes, Mauricio Guerra; Gómez, Miguel I.; Tufan, Hale

doi:10.21203/rs.3.rs-2548847/v1

Cited by 3 publications

(2 citation statements)

References 35 publications

(37 reference statements)

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“…Furthermore, national breeding programs have the mandate to develop more client-oriented breeding projects on common beans. This study focuses on this territory, given the evidence dearth on participatory varietal selection approaches and their impacts in Central and South America (Occelli et al, 2023) and the acute food insecurity characterizing part of Trifinio (IPC Global Unit Report., 2021). Communitybased and participatory interventions are not new in the area but are usually related to water and forest management (Jennewein & Jones, 2016;Schlesinger et al, 2017).…”

Section: Study Settingmentioning

confidence: 99%

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

Occelli,

Sellare,

Sousa

et al. 2024

Agricultural Economics

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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 drawbacks and are seldom streamlined or scaled. Decentralized on‐farm testing supported by citizen science addresses some of these challenges. In this study, we compare a citizen science on‐farm testing approach — triadic comparisons of technology options (tricot‐PVS) — with the benchmark state‐of‐the‐art group‐based participatory variety testing approach (group‐PVS) over a set of socioeconomic outcomes. We focus on on‐farm testing of common bean (Phaseolus vulgaris L.) in the Trifinio area of Central America. We measure the impact of these two approaches on bean growers in terms of on‐farm diversification and food security. We use data from 1978 smallholder farmers from 140 villages, which were randomly assigned to tricot‐PVS, group‐PVS or control. Utilizing a difference‐in‐difference model with inverse probability weighting and an instrumental variable approach, we observe that farmers involved in group‐PVS, and tricot‐PVS had comparable levels of on‐farm varietal diversification with respect to control farmers. Nonetheless, group‐PVS appears to be significantly more effective in boosting household food security, which can be attributed to improved agronomic management of the crops. This study contributes to the next generation of innovations in exploring trait preferences to produce more inclusive, demand‐driven varietal design that democratize participatory varietal selection programs.

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Section: Study Settingmentioning

confidence: 99%

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

Occelli,

Sellare,

Sousa

et al. 2024

Agricultural Economics

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“…The lack of consistent standards for data collection, research design and sex-disaggregation prevailing in trait preference studies makes comparative analysis impossible (Occelli et al, 2023). On the other hand, there is considerable work on standardizing data collection within crop breeding programs using the Enterprise Breeding System 9 .…”

Section: Priority 2: Systematization Of Gendered Trait and Seed Quali...mentioning

confidence: 99%

Genetic innovation gender strategy

2024

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Intra-household discrete choice experiment for trait preferences: a new method

Mukerjee,

Faye,

Badji

et al. 2023

Front. Sustain. Food Syst.

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Crop trait and varietal preferences are socially shaped, varying by gender, experience, and on-farm roles. This drives preference heterogeneity, between households but also within households. Adhering to the common practice of only interviewing the household head as a representative of households, leads to breeding programs collecting trait preferences that do not represent the experiences of other members within that household. This dearth of data on trait preferences of multiple household members could be hindered by the lack of robust and agile methods to collect this data. Here we present a method that explores intra-household differences between husbands and wives in trait preferences through choice experimentation, coupled with questions that capture decision-making, experience and time spent on farm to explore how these drive preferences. Dissecting crop management into three dimensions, we explore what drives intra-household heterogeneity in varietal preferences between husbands and wives, as well as, decision-making, crop experience and time spent working on the crop. We present preliminary results from testing this combined protocol with 270 cowpea growing households (540 respondents) in Senegal. The findings from this work hold promise to inform crop breeding programs on the value of intra-household analysis for trait priority setting, while offering a new method which is applicable by National Agricultural Research Organizations globally.

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Trait prioritization in crop breeding programs: a scoping review on tools and methods

Cited by 3 publications

References 35 publications

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

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

Genetic innovation gender strategy

Intra-household discrete choice experiment for trait preferences: a new method

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