Sweet potato development and delivery in sub-Saharan Africa

Low, Jan; Ball, Anna‐Marie; Magezi, S.; Njoku, J. C.; Mwanga, R.O.M.; Andrade, M.I.; Tomlins, Keith I.; Dove, Richard; Mourik, T. van

doi:10.18697/ajfand.78.harvestplus07

Cited by 59 publications

(68 citation statements)

References 24 publications

(21 reference statements)

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“…As the dendrogram couplets coalesce the genotypes are fit into groups that are related based on vine growth rate, vine internode length, vine internode diameter, storage root cortex thickness, storage root stalk, mature leaf size, storage root length, storage root diameter, petiole length, the weight of largest tuber and yield. Letters (A, B) and numbers (1,2,3) represent clusters and sub-clusters respectively.…”

Section: Jhpr Volumementioning

confidence: 99%

“…Sweet potato is a cheap and valuable source of vitamin A, is a good source of calcium and ascorbic acid (vitamin C), and provides more edible energy than other staple foods. These characteristics make this crop suitable and attractive to farmers with limited resources [2]. The possibility of improvement in any crop is dependent on the available variability.…”

Section: Introductionmentioning

confidence: 99%

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Agro-Morphological Characterization of Sweet Potato Genotypes Grown in Different Ecological Zones in Kenya

Ochieng

2019

JHPR

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A main characteristic of sweet potato [Ipomoea batatas(L.) Lam.] is its high phenotypic and genotypic variability. There is no, or limited, information on suitability of agro-morphological characteristics for utilization in production and processing. Currrently, farmers are growing different sweet potato genotypes characterized with low yield. The aim of the study was to evaluate agro-morphological characteristics of 68 sweet potato genotypes in order to determine the best performing ones. The sweet potato genotypes were grown at the Kenya Agricultural and Livestock Research Organization and the Embu and Miyare Agriculture Training College. The locations were chosen because they are the main sweet potato producing areas with different climatic and production conditions. Six storage root and five aerial characters were used in the characterization. The genotypes differed in storage root stalk and root length; vine internode length and vine internode growth rate; petiole length and leaf size, and yield at both sites. Genotype Nyautenge was the best performing in terms of storage root yield. There was poor correlation among agro-morphological attributes. The study demonstrates the potential of some sweet potato genotypes such as Nyautenge for high productivity.

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Section: Jhpr Volumementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Agro-Morphological Characterization of Sweet Potato Genotypes Grown in Different Ecological Zones in Kenya

Ochieng

2019

JHPR

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“…cultivated in tropical and semi-tropical regions of the world for food and source of income especially among the rural dwellers [5,6,7,]. It belongs to the morning-glory family known as convolulaceae and is originated from Latin America [8]. It can be grown in wide range of agro-ecologies and soil types.…”

Section: Literature Reviewmentioning

confidence: 99%

Marketing Efficiency of Orange-Fleshed Sweet Potato (OFSP) (Ipomoea batata (L) Lam) in Nasarawa State, Nigeria

Girei

Turai

Filli

2019

AJAEES

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The study assessed the marketing efficiency of orange fleshed sweet potato in Nasarawa State, Nigeria. The study covered six (6) Local Government Areas out of the thirteen (13). Two (2) LGAs each out of the three (3) Agricultural zones were selected. A random sampling technique was adopted and a sample size of (90) respondents was used. Primary data were collected through structured questionnaire and analyzed using descriptive statistics, and multiple linear regression model was used as tools of analysis. Results of the study showed that 38.9% of the respondents were still young and within the active age of 21-30. Also, majority 77.8% of the OFSP marketers, were married. The regression result of the determinants of OFSP market pricing efficiency shows a coefficient of multiple determination adjusted (R -2) of 0.595 which indicates that 59.5% variation in marketing efficiency of OFSP is explained by the independent variables. The independent variable marital status was positively significant at 1% level of probability which implies that an increase in marital status will increase the marketing of OFSP at 1% level of probability while input level though significant but was inversely significant at 5% level of probability and this implies that an increase in input level will have a decrease in the input level at 5% level of probability. Age of Respondent, gender, years of experience, quantity marketed and educational level was not significant. The study recommended that young, active and educated youths in the study area should take up OFSP marketing as a profitable venture that is capable of generating employment and self-reliance, instead of relying on government jobs.

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“…The importance of this crop includes nutritional and health benefits related to the consumption of the tuberous root. According to Chueyen and Eun (2013), sweet potato possesses phenolic compounds, anthocyanins, sporamins, carotenoids (Hussein et al, 2014), vitamins A, B, C, K, and E, which are important in the prevention of several diseases, contributing to food security in some regions (Low et al, 2017;Iese et al, 2018). Furthermore, sweet potato is a highly energetic food due to its high starch content, and can also be used in the biodiesel and bioethanol industry (Silva et al, 2018a).…”

Section: Introductionmentioning

confidence: 99%

Effect of Combined Organic and Inorganic Fertilizer Application on Soil Attributes, Yield and Quality of Sweet Potato (Ipomoea batatas L.)

Nunes

Silva²,

Neto³

et al. 2020

JAS

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The use of organic fertilizers in adequate doses is an alternative to reduce the use of inorganic inputs, improving the soil chemical attributes, and increasing the production and quality of sweet potato. In this perspective, the objectives of this study were: (i) to evaluate the effects of fertilization with poultry and bovine manure, Ribumin®, and of conventional fertilization on soil attributes, production, and quality of sweet potato; and (ii) to evaluate the residual effect of organic fertilization on the production components and quality of sweet potato, in the second crop cycle. The two experiments were developed in the 2018/2019 crop year at the Agrotechnical School of the Federal University of Roraima (UFRR), Brazil. The treatments were arranged in a randomized block design with three replications, using a (2 × 5 × 2) + 1 factorial arrangement referring to two manure sources (bovine and poultry manure) and five doses, aiming at increasing the content of soil organic matter (1.35%) to 2.35; 3.35; 4.35, and 5.35%, in the absence and presence of Ribumin®, and an additional treatment referring to organomineral fertilization. For the evaluation of the second cycle, the residual effect of the manure was evaluated by applying only Ribumin® and conventional fertilizers. In the first cycle, the addition of 50.4 t ha-1 of bovine manure without Ribumin® provided the highest values of total (14.7 t ha-1) and marketable yield (14.6 t ha-1). However, the addition of poultry manure associated with the application of Ribumin® provided no increments in the sweet potato production components. Under the same experimental conditions, chemical fertilization can be replaced by fertilization with organic sources.

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Sweet potato development and delivery in sub-Saharan Africa

Cited by 59 publications

References 24 publications

Agro-Morphological Characterization of Sweet Potato Genotypes Grown in Different Ecological Zones in Kenya

Agro-Morphological Characterization of Sweet Potato Genotypes Grown in Different Ecological Zones in Kenya

Marketing Efficiency of Orange-Fleshed Sweet Potato (OFSP) (Ipomoea batata (L) Lam) in Nasarawa State, Nigeria

Effect of Combined Organic and Inorganic Fertilizer Application on Soil Attributes, Yield and Quality of Sweet Potato (Ipomoea batatas L.)

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