Effect of Farmers’ Multidimensional Beliefs on Adoption of Biofortified Crops: Evidence from Sweetpotato Farmers in Tanzania

Shikuku, Kelvin Mashisia; Okello, Julius Juma; Sindi, Kirimi; Low, Jan; McEwan, M.

doi:10.1080/00220388.2017.1414188

Cited by 16 publications

(24 citation statements)

References 34 publications

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“…Thus, in comparison to Obare variety, the farmers found taste of Apomuden inferior, hence the negative and significant effect. The findings regarding the attribute taste is consistent with those of Shikuku et al (2019) and Kikulwe et al (2011) who found that taste was an important consumption attribute with a strong influence on adoption of improved varieties.…”

Section: Discussionsupporting

confidence: 88%

Effect of varietal attributes on the adoption of an orange-fleshed sweetpotato variety in Upper East and Northern Ghana

Adekambi

Okello²,

Rajendran

et al. 2020

Outlook Agric

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Despite sustained economic growth and reduction in some of forms of malnutrition, Ghana still faces a national prevalence rate of 20.8% vitamin A deficiency (VAD) among for children 6–59 months old. Orange-fleshed sweetpotato ( Ipomoea batatas L.) (OFSP) can significantly improve vitamin A intake and contribute toward reducing VAD, especially in Northern Ghana where VAD is 31% among young children. Several poverty and nutrition projects in Ghana have promoted the use of OFSP for its health benefits. This study assesses the effect of three varietial attributes on adoption of the first released OFSP variety in Northern Ghana namely, Apomuden. The study concluded that sweetness, taste and dry matter have joint significant effects on adoption of an OFSP variety. The positive and negative traits highlighted will inform the on-going breeding effort.

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Section: Discussionsupporting

confidence: 88%

Effect of varietal attributes on the adoption of an orange-fleshed sweetpotato variety in Upper East and Northern Ghana

Adekambi

Okello²,

Rajendran

et al. 2020

Outlook Agric

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“…The term flavor appears to be subjective. These findings are consistent with previous works reported by Shikuku et al (2019) and Kikulwe et al (2011) who found that taste was an important consumption attribute with a strong influence on adoption of improved sweet potato varieties. Root texture in terms of fiber content is an important trait used by farmers in selecting sweet potato varieties.…”

Section: Farmers' Varietal Preferences Of Orange Fleshed Sweet Potato...supporting

confidence: 93%

“…Since firmness is an indication of high dry matter content, panelist have tasted a boiled roots of each tested variety for hardness/ firmness and they have selected varieties with very firm roots and noticed that this trait was more preferable by local farmers in selecting sweet potato varieties. This result agrees with findings of Shikuku et al (2019) who explained that sweet potato varieties with good sensorial attributes are best approach to solve the problems of malnutrition and facilitating food security in developing countries.…”

Section: Farmers' Varietal Preferences Of Orange Fleshed Sweet Potato...supporting

confidence: 92%

Participatory variety selection of improved orange-fleshed sweet potato varieties at Gedeb district of Gedeo zone, Southern Ethiopia

Mekonnen¹

2021

J. Agric. Sci. Pract.

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Orange-fleshed sweet potato (OFSP) is a bio-fortified crop that is a rich source of beta-carotene (pro-vitamin A) which is necessary for combating the problems related to vitamin A deficiency (VAD). There is an increasing demand by farmers for production and consumption of improved OFSP varieties in the study areas. In order to respond to farmer requests, participatory variety selection trial was conducted with the objective of selecting superior OFSP varieties with farmer’s preferred traits. The trial was conducted during 2019 and 2020 growing seasons across three sites in Gedeb district of Gedeo Zone. Six varieties, including one old OFSP variety as a check were tested in a mother trial using each site as a single replication. For a baby trial, one new and one old variety was given to more than 30 model farmers around each site. Data were collected on agronomic traits such as root yield, above ground biomass, harvest index and sweet potato virus disease from the mother trial and analysis of variance was conducted. The combined analysis showed the presence of significant differences (p≤0.05) among tested genotypes for observed traits. The highest root yield was recorded for Dilla (23.11 t/ha), followed by Alamura (22.57 t/ha), Kabode (18.66 t/ha) and NASPOT-13 which produced the lowest root yield of 12.10 t/ha as compared to the others. Demonstrations of various sweet potato based foods were also made and 18 farmers (13 male and 5 female) were invited for variety assessment and selection based on the recipes. These farmers set sensorial attributes like flavor, taste, texture, and hardness of the cooked roots for taste-tests. Considering overall ranking of the six parameters (taste-tests) and agronomic traits such as root yield, above ground biomass, resistance to virus disease, varieties Dilla, Alamura, and Kabode were selected as the 1st, 2nd and 3rd choices, respectively. Therefore, scaling up of these OFSP varieties should be done in the study area and areas with similar agroecologies in order to alleviate the problems related with VAD.

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“…Two studies analyzed data from the Marando Bora project [ 36 , 37 ]. The Marando Bora project, a component of the SASHA project, took place between 2010 and 2013 and was carried out in four regions of the lake zone of Tanzania; Mara, Mwanza, Shinyanga, and Kagera.…”

Section: Resultsmentioning

confidence: 99%

Review of the Impact Pathways of Biofortified Foods and Food Products

et al. 2022

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Biofortification is the process of increasing the concentrations and/or bioavailability of micronutrients in staple crops and has the potential to mitigate micronutrient deficiencies globally. Efficacy trials have demonstrated benefits of consuming biofortified crops (BFCs); and in this paper, we report on the results of a systematic review of biofortified crops effectiveness in real-world settings. We synthesized the evidence on biofortified crops consumption through four Impact Pathways: (1) purchased directly; (2) in informal settings; (3) in formal settings; or (4) in farmer households, from their own production. Twenty-five studies, covering Impact Pathway 1 (five studies), Impact Pathway 2 (three), Impact Pathway 3 (three), Impact Pathway 4 (21) were included. The review found evidence of an improvement in micronutrient status via Impact Pathway 4 (mainly in terms of vitamin A from orange sweet potato) in controlled interventions that involved the creation of demand, the extension of agriculture and promotion of marketing. In summary, evidence supports that biofortified crops can be part of food systems interventions to reduce micronutrient deficiencies in farmer households; ongoing and future research will help fully inform their potential along the other three Impact Pathways for scaling up.

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Effect of Farmers’ Multidimensional Beliefs on Adoption of Biofortified Crops: Evidence from Sweetpotato Farmers in Tanzania

Cited by 16 publications

References 34 publications

Effect of varietal attributes on the adoption of an orange-fleshed sweetpotato variety in Upper East and Northern Ghana

Effect of varietal attributes on the adoption of an orange-fleshed sweetpotato variety in Upper East and Northern Ghana

Participatory variety selection of improved orange-fleshed sweet potato varieties at Gedeb district of Gedeo zone, Southern Ethiopia

Review of the Impact Pathways of Biofortified Foods and Food Products

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