Uneven ground? Intersectional gender inequalities in the commercialized cassava seed system in Tanzania

Open Access JournalCassava (Manihot esculenta Crantz) is an important crop in Africa, especially to women who rely on it as a household staple food and source of income. In Tanzania, a recent move toward commercializing the cassava seed system resulted in significantly fewer women than men farmers, known as Cassava Seed Entrepreneurs (CSEs), producing improved seed for sale to fellow farmers. To document the barriers and constraints that create gender inequalities in the seed system to better understand women’s low representation and experiences in commercialized cassava seed production, we carried out a mixed-methods study in the Southern, Eastern, and Lake Zones of Tanzania in 2021. The quantitative analysis found differences in key individual and household characteristics between CSEs and farmers who aspired to be but did not participate as CSEs (or A-CSEs) as well as between women CSEs and women A-CSEs. After running a logistic regression, results indicated that sex of the farmer (being male) was a statistically significant predictor of participating as a CSE (p < 0.05), along with having a secondary education (p < 0.05) and owning a bank account (p < 0.01). The qualitative analysis highlighted challenges women CSEs face. They spoke about having lower access to and control over prerequisite resources, which are shaped by other intersecting social identities such as marital status and age. Gender stereotypes about their capacities to manage their seed businesses can demotivate them from carrying out their work as well as experiences dealing with discriminatory gender norms that limit their travel to attend trainings outside their communities. Despite these barriers, some women CSEs expressed positive outcomes that have accrued from their participation in commercialized seed production, including enhanced social status and improved living standards. For the commercialized cassava seed system to be more socially inclusive and sustainable, we argue that there is need to adopt gender-aware approaches to address the underlying barriers and biases that exclude women and other social groups. Development efforts should consider combining social change innovations with seed system interventions to address the inequitable norms and power relations that create unique constraints for women to operate effectively as seed entrepreneurs

Estimates for heritability and consumer-validation of a penetrometer method for phenotyping softness of cooked cassava roots

Although breeders have made significant progress in the genetic improvement of cassava ( Manihot esculenta Crantz) for agronomic traits, lack of information on heritability and limited testing of high-throughput phenotyping methods are major limitations to improving root quality traits, such as softness after cooking, which rank high among Ugandan consumers. The objectives of this study were to determine heritability for softness of cooked cassava roots, and quantify the relationship between penetrometer and consumer testing methods for phenotyping softness of cassava roots. Softness defined as the maximum force (N) needed to penetrate cooked root samples using a penetrometer, was evaluated at four cooking time intervals: 15, 30, 45, and 60 min on 268 cassava genotypes. Estimates of broad-sense heritability (repeatability) ranged from 0.17 to 0.37, with the highest value observed at 45 min of cooking time interval. In the second study involving 135 cassava consumers from Kibaale district in Uganda, penetrometer measurements of cooked roots from six cassava varieties were found to be in strong agreement (r2 = 0.91; P-value = 0.003) with ordinal scores of root softness from consumer testing. These results suggest that: (a) softness of cooked cassava roots is a trait amenable for evaluation and selection; and (b) a penetrometer can readily be used for assessment of cooked root softness. These findings form the basis for operationalising the routine assessment of root softness in cassava breeding trials, an output that will enhance ongoing efforts to breed for desired end-user root quality traits.Les s\ue9lectionneurs ont fait des progr\ue8s consid\ue9rables dans l\u2019am\ue9lioration g\ue9n\ue9tique des caract\ue8res agronomiques du manioc ( Manihot esculenta Crantz). Cependant un manque de m\ue9thodes de ph\ue9notypage haut-d\ue9bit adapt\ue9es aux caract\ue8res de qualit\ue9s tel que la fermet\ue9 de la racine apr\ue8s cuisson, essentiel pour les consommateurs Ougandais. Cette \ue9tude ambitionne a) de determiner l\u2019h\ue9ritabilit\ue9 de la fermete de racine cuite b) de quantifier la relation entre l \ue9valuation de la fermet\ue9 de racine cuite au p\ue9n\ue9trom\ue8tre et un panel consommateurs. Cette \ue9valuation a \ue9t\ue9 realisee a quatre intervals de temps: 15, 30, 45 et 60 minutes sur 268 genotypes de manioc. Pour d\ue9finir l\u2019h\ue9ritabilit\ue9 de la fermet\ue9 de la racine, celle ci a \ue9t\ue9 d\ue9finie par la force maximum (N) n\ue9cessaire pour p\ue9n\ue9trer des \ue9chantillons de racines incluant diff\ue8rent temps de cuisson (15, 30, 45, and 60 min) a l\u2019aide d\u2019un p\ue9n\ue9trom\ue8tre. L\u2019h\ue9ritabilit\ue9 au sens large (ou r\ue9p\ue9tabilit\ue9) observ\ue9e varie de 0.17 a 0.37, la valeur la plus \ue9lev\ue9 \ue9tant observ\ue9e pour un temps de cuisson de 45 minutes. Dans une seconde \ue9tude impliquant 135 consommateurs du district de Kibaale (Ouest de l\u2019Ouganda), les mesures au p\ue9n\ue9trom\ue8tre de racines cuites de six vari\ue9t\ue9s ont confirm\ue9es la forte correlation (r2 = 0.91; P-value = 0.003) avec les valeurs ordinales de fermet\ue9 de racine du panel consommateur. Les r\ue9sultats de cette \ue9tude indiquent que cette m\ue9thodologie de ph\ue9notypage est a) utile pour l\u2019 \ue9valuation de la fermet\ue9 sur des racines cuites en selection et b) d\ue9montre que l\u2019usage du p\ue9n\ue9trom\ue8tre est efficace pour celle ci. Ces r\ue9sultats offrent aux s\ue9lectionneurs une methode d\u2019 \ue9valuation de routine de la qualite de racine pour les essais experimentaux. Ceux ci contribueront aux efforts actuels pour l\u2019am\ue9lioration des caract\ue8res qualit\ue9s chers aux consommateurs

Beyond ''women's traits'': exploring how gender, social difference and household characteristics influence trait preferences

Open Access Journal; Published online: 14 Dec 2021Demand-led breeding strategies are gaining importance in public sector breeding globally. While borrowing approaches from the private sector, public sector programs remain mainly focused on food security and social impact related outcomes. This necessitates information on specific user groups and their preferences to build targeted customer and product profiles for informed breeding decisions. A variety of studies have identified gendered trait preferences, but do not systematically analyze differences related to or interactions of gender with other social dimensions, household characteristics, and geographic factors. This study integrates 1000minds survey trait trade-off analysis with the Rural Household Multi-Indicator Survey to study cassava trait preferences in Nigeria related to a major food product, gari. Results build on earlier research demonstrating that women prioritize food product quality traits while men prioritize agronomic traits. We show that food product quality traits are more important for members from food insecure households and gender differences between men and women increase among the food insecure. Furthermore, respondents from poorer households prioritize traits similar to respondents in non-poor households but there are notable trait differences between men and women in poor households. Women in female headed household prioritized quality traits more than women living with a spouse. Important regional differences in trait preferences were also observed. In the South East region, where household use of cassava is important, and connection to larger markets is less developed, quality traits and in ground storability were prioritized more than in other states. These results reinforce the importance of recognizing social difference and the heterogeneity among men and women, and how individual and household characteristics interact to reveal trait preference variability. This information can inform trait prioritization and guide development of breeding products that have higher social impact, which may ultimately serve the more vulnerable and align with development goals

Stressors and resilience within the cassava value chain in Nigeria: preferred cassava variety traits and response strategies of men and women to inform breeding

Open Access JournalThis study investigated the trait preferences for cassava in the context of climate change and conflict stressors among value-chain actors in Nigeria to strengthen social inclusion and the community-resilience outcomes from breeding programs. Multi-stage sampling procedures were used to select and interview male and female value-chain participants in the Osun, Benue and Abia States. The results indicated that farmers preferred cassava traits such as drought tolerance, early bulking, multiple-product use and in-ground storability to strengthen resilience. Climate change and challenges related to social change shaped the response strategies from both genders, and influenced trait preferences, including the early re-emergence of cassava leaves, stems that had ratooning potential, and especially the root milking that was important among female respondents. The major response strategies employed by men included frequent farm visits to prevent theft and engaging in non-agricultural livelihoods. Those employed by women included backyard farming, early harvesting, having preferences for food with fewer processing steps, and depending on remittances. The resilience capacity was higher for men than for women due to their better access to assets, as well as their abilities to relocate their farms and out-migrate in search of other livelihoods. Considering gendered cassava traits, and enhancing their resilience and response strategies, can complement efforts to make breeding more socially inclusive, resilient, and anticipatory to future challenges created by climate and related social changes

The tricot citizen science approach applied to on-farm variety evaluation: methodological progress and perspectives

Tricot (triadic comparisons of technologies) is a citizen science approach for testing technology options in their use environments, which is being applied to on-farm testing of crop varieties. Over the last years, important progress has been made on the tricot methodology of which an overview is given. Trial dimensions depend on several factors but tricot implies that plot size is as small as possible to include farmers with small plots (yet avoiding excessive interplot competition) while many locations are included to ensure representativeness of trials. Gender and socio-economic work is focused on better household characterization and recruitment strategies that move beyond sex-aggregation to address aspects of intersectionality. Ethics, privacy and traditional knowledge aspects will be addressed through expanding digital support in this direction. Genetic gain estimates need to be addressed by yield measurements, which can be generated by farmers themselves. There is conceptual clarity about the needs for documentation of trials and publishing data but this aspect requires further digital development. Much progress has been made on the ClimMob digital platform already, which is user friendly and supports trials in the main steps and includes open-source data analytics packages. Further improvements need to be made to ensure better integration with other tools. A next step will be the development of scaling strategies that involve business development. An important input into these strategies are economic studies, which are ongoing

When Is Choice Empowering? Examining Gender Differences in Varietal Adoption through Case Studies from Sub-Saharan Africa

This paper examines the question of what makes choice empowering and critiques prevalent approaches to empowerment focused narrowly on agency as the ability of individuals to make their own free choices and act independently. The implications of a narrow focus on agency are illustrated with the examples of technology choice in agriculture, specifically choices involved in the adoption of improved plant varieties. This example elucidates the limits of individual agency and permits an analysis of how choices may be structured to be either empowering or disempowering, with examples from specific plant breeding cases. In view of the importance given to equitable choice of technology for closing the gender gap in agricultural productivity and sustainability, the paper explores what practical steps can be taken towards a balanced approach to empowerment. An approach to designing a new plant variety by constructing choice differently is illustrated, using information on gender relations. The paper derives lessons from the plant breeding cases to inform other kinds of interventions, so that work on how choices are defined is given as much importance for empowerment as creating the option to choose. Agents who exercise power over rules and resources can either reproduce the status quo or innovate; thus, a balanced approach to empowerment requires careful analysis of the elements of choice