The transforming value chain of Ethiopia’s “orphan” tef crop

Bachewe, Fantu Nisrane; Regassa, Mekdim D.; Minten, Bart; Taffesse, Alemayehu Seyoum; Tamru, Seneshaw; Hassen, Ibrahim Worku

doi:10.1007/s00425-019-03224-0

Cited by 10 publications

(6 citation statements)

References 20 publications

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“…Teff straw (Eragrostis tef ) has recently been investigated as a biosilica source. Every year, more than 2 million tons of teff straw are discarded like garbage in Ethiopia [3].…”

Section: Introductionmentioning

confidence: 99%

Production and Optimization of Bio-Based Silica Nanoparticle from Teff Straw (Eragrostis tef) Using RSM-Based Modeling, Characterization Aspects, and Adsorption Efficacy of Methyl Orange Dye

Amibo

Beyan

Damite

2022

Journal of Chemistry

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The brown teff straw was utilized in this study to produce silica using the sol-gel technique. After pretreatment, the raw material of brown teff straw was characterized. The data were analyzed using the central composite design and response surface technique, and four independent parameters, namely, temperature, NaOH concentration, rotational speed, and extraction time, were evaluated for process optimization. Before extracting silica with an alkaline solution, the silica content in the ash was determined using an AAS spectrometer. The silica content of teff straw ash is around 92.89%. The ash was treated with NaOH solution in the concentrations range of 1 M to 3 M (0.5 M interval). The extraction time varied at intervals of 55, 70, 85, 100, and 115 minutes. Temperatures were changed using magnetic stirrer equipment in the range of 80°C to 100°C (5°C interval). At 350 rpm, 400 rpm, 450 rpm, 500 rpm, and 550 rpm, the rotating speed was adjusted. The best extraction conditions for amorphous silica were 1.50 M NaOH, 109.99 min, 94.98°C, and a rotating speed of 499.57 rpm, with a maximum yield of 85.85%. XRD and FTIR analyses were used to assess the physicochemical characteristics of the extracted silica. The aqueous solutions of methyl orange were used to test the adsorption efficiency of silica. The percent of removal efficiency for methyl orange was 90.48%.

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“…Teff straw (Eragrostis tef ) has recently been investigated as a biosilica source. Every year, more than 2 million tons of teff straw are discarded like garbage in Ethiopia [3].…”

Section: Introductionmentioning

confidence: 99%

Production and Optimization of Bio-Based Silica Nanoparticle from Teff Straw (Eragrostis tef) Using RSM-Based Modeling, Characterization Aspects, and Adsorption Efficacy of Methyl Orange Dye

Amibo

Beyan

Damite

2022

Journal of Chemistry

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“…Notwithstanding a large body of knowledge has been developed around the best practices for teff management, much progress can still be done in regards of its genetic improvement. Teff can be well considered a neglected and underutilized species (NUS) (Bachewe et al 2019;Tadele 2018), a crop for which much potential exists still undisclosed by modern breeding approaches. It did not benefit of the leap forward of the green revolution that revolutionised the yields of other cereals, including the closely related rice and wheat.…”

Section: Introductionmentioning

confidence: 99%

Value of teff (Eragrostis tef) genetic resources to support breeding for conventional and smallholder farming: a review

et al. 2022

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Crop germplasm collections are a key asset to support the resilience and productivity of cropping systems worldwide. In their diversity lays an oftentimes untapped reservoir of alleles that may enable breeding strategies targeting local adaptation, resulting in enhanced performance and higher varietal uptake. In the past five decades, the national genebank of Ethiopia actively collected and conserved thousands of teff (Eragrostis tef) accessions, a staple crop throughout the Horn of Africa at the basis of countless cultural uses and with high market relevance. This review article emphasizes the breeding significance of teff genetic resources, highlighting current challenges in teff farming and improvement that could be addressed further valorising germplasm collections. We collect data generated on the largest teff ex situ collections in the world to discuss opportunities to improve teff tolerance to stress and lodging, as well as to increase its productivity across its cropping area. In doing so, we highlight and critically revise current and past literature tapping in teff diversity to support teff improvement. This review starts providing a summary of teff characteristics, detailing the status and challenges of teff cultivation and breeding. It then follows describing the diversity existing in teff diversity collections and its relevance for teff improvement. The review concludes describing the molecular studies undertook on teff in the past two decades, highlighting the perspectives of molecular breeding for teff. The body of knowledge available on teff shows that there is large potential for improvement of this crop to target smallholder farming systems as well as international markets, and that improvement may start from the large diversity available in teff collections.

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“…It grows in various agro-climatic conditions from sea level to 3000 meters above sea level and different types of edaphic factors thus from light sandy to heavy clay soil in variable fertility but grown suitably at middle elevations between 1800 and 2200 meters above sea level and in regions where there is adequate rainfall. These characteristics, together with it being easy to store, seemingly explain the sustained importance of tef in Ethiopia (Bachewe et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Performance evaluation of tef varieties for yield and yield related traits in east Gojam zone of Amhara region

Bitew¹,

Workie²

2022

Journal of Innovative Agriculture

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Tef is the only cereal cultivated for human consumption in the genus Eragrostis.Compared to other cereal crops tef is resilient and able to withstand adverse weather conditions. The major problems for adaptation of tef are lack of diversified alternative improved varieties adapted to the study area and limited availability of varieties. This study was carried out to recommend best adapted and high yielder tef varieties in the study area. A total of twelve released tef varieties were used in the experiment. Randomized Complete Block Design (RCBD) with three replications was used to execute this research activity. The analysis of variance showed that the genotypes differed significantly (p< 0.05) for harvest index, and lodging, and were highly significant (p<0.001) for days to heading, plant height and panicle length. Heritability estimate was moderately high for panicle length followed by plant height and days to 50% heading. Panicle length and plant height showed moderately high heritability with a high genetic advance as a percent of the mean. Grain yield showed a positive and highly significant (P < 0.001) correlation with biomass yield (0.97), lodging index (0.84) and plant height (0.82). To alleviate the limited access of improved tef varieties to study area these selected varieties need to be demonstration and popularized to farmers with their full production package to enhance the productivity of tef crop.

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The transforming value chain of Ethiopia’s “orphan” tef crop

Abstract: Main conclusion Despite the relatively little attention given to tef, the value chain is quickly transforming and is expected to further do so in the near future.

Cited by 10 publications

References 20 publications

Production and Optimization of Bio-Based Silica Nanoparticle from Teff Straw (Eragrostis tef) Using RSM-Based Modeling, Characterization Aspects, and Adsorption Efficacy of Methyl Orange Dye

Production and Optimization of Bio-Based Silica Nanoparticle from Teff Straw (Eragrostis tef) Using RSM-Based Modeling, Characterization Aspects, and Adsorption Efficacy of Methyl Orange Dye

Value of teff (Eragrostis tef) genetic resources to support breeding for conventional and smallholder farming: a review

Performance evaluation of tef varieties for yield and yield related traits in east Gojam zone of Amhara region

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