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Showing 1 to 18 of 18 for “"sweetpotato"”.
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Phytochemical mediated resistance in sweetpotato to sweetpotato weevils
This study evaluated sweetpotato resistance to sweet potato weevils (Cylas spp.) and investigated the phytochemicals that mediated this defence. New Kawogo, LIR302 and ARA228 were shown to be the most resistant based on stem and root damage. Significant differences were observed on the number of …
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Dynamics of the sweetpotato potyvirus aphid pathosystem in Louisiana
Sweetpotato potyviruses [Sweet potato feathery mottle virus (SPFMV), Sweet potato virus G (SPVG) and Sweet potato virus 2 (SPV2)] commonly infect sweetpotato and weedy morning glories in the USA. These viruses are transmitted in a non-persistent manner by various aphid species and cause up to 15% …
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Antioxidant properties and anti-cancer effects of polyphenols in sweetpotato leaves
<p>Although the root is widely consumed, sweetpotato leaves (SPL) are often discarded and are only consumed in a few countries. In the United States, SPL consumption is limited to private gardens, particularly in the Southeastern United States. Not only are SPL a good source of nutrients such as …
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Genomic approaches to understand sweetpotato root development in relation to abiotic factors
… is the most important physiological process in sweetpotato. Understanding the underlying genetics is the overall objective of this research. A secondary objective is examining the impact of abiotic stress on gene expression and storage root development. A comprehensive analysis of a …
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Pilot study: identification of anthocyanin metabolites in the mice fed purple-fleshed sweetpotato
Anthocyanins may prevent chronic diseases such as cancer and cardiovascular disease, however, the anthocyanin metabolites are not well elucidated. We previously selected a purple-fleshed sweet potato clone P40 that contained anthocyanins at up to 7.5 g/kg dry matter, most of which are cyanidin and …
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Sweetpotatoes in a Globalizing World : The Effects of Globalization on North Carolina's Sweetpotato Industry
… and effects of globalization on North Carolina's sweetpotato industry. A commodity chain analysis was conducted by constructing North Carolina's sweetpotato commodity chain (SPCC) through the collection of quantitative data and interviews with various individuals (growers, packers, exporters, …
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Explainable artificial intelligence and deep reconstruction of hyperspectral images for advancing sweetpotato quality evaluation
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2027-05-01
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Molecular diversity and coat protein expression of Sweet potato leaf curl virus
Leaf curl virus diseases have been reported in sweetpotato throughout the world. One of the causal agents is Sweet potato leaf curl virus (SPLCV) which belongs to the genus Begomovirus (family Geminiviridae). In the United States, SPLCV has been found infecting an ornamental sweetpotato and several …
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Phenolic composition and antioxidant activity of sweetpotatoes [Ipomoea batatas (L.) Lam]
The influence of numerous factors on sweetpotato phenolic content and antioxidant activity was determined. Simplified, robust, and rapid methodologies were developed to quantify total phenolics and individual phenolic acids in sweetpotatoes. Quantification of total phenolic content using …
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Factors influencing the post-harvest quality and consumer preference of sweet potato and other products in sub-Saharan Africa
The first theme covers sweetpotato in the marketing chain from farm to consumer. In East Africa, research explored ways of improving the handling and transport of sweetpotato, shelf life and storage of fresh roots on the farms to increase incomes and food security. Transport and handling were …
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Current and potential systems for maintaining sweetpotato planting material in areas with prolonged dry seasons: a biological, social and economic framework
This study on sweetpotato seed systems was conducted in Mukono, Kamuli, Bukedea and Soroti districts in Uganda, and in Mwanza, Shinyanga and Meatu regions in the Lake Zone of Tanzania during 2007 – 2011. It aimed at developing simple, affordable and applicable technologies for conserving and …
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Introducing a pro-vitamin a rich staple crop: analysis of decision making along the orange fleshed sweetpotato value chain in Uganda
… the determinants of uptake of pro vitamin A-rich sweetpotato along the value chain in Uganda and examines the role of a marketing component in a food biofortification intervention. It is conceptualised within the value chain and adoption decision theory. Using both qualitative and quantitative …
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Effect of cultivar, storage, cooking method and tissue type on the ascorbic acid, thiamin, riboflavin and vitamin B6 content of sweetpotato [Ipomoea batatas (L.)] Lam
… thiamin, riboflavin, and vitamin B6 content of sweetpotato was determined. A simplified and sensitive reverse-phase high performance liquid chromatography (HPLC) methodology was developed for the simultaneous determination of thiamin and riboflavin in sweetpotato. Curing of sweetpotatoes did not …
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Dormancy and sprout control in root and tuber crops
… to study dormancy/sprout control in potato and sweetpotato, and to identify novel sprout control strategies. Consistent with sprout stimulation by gibberellins (GAs) in potato, 10 mM GA3 enhanced sprout length and number in sweetpotato roots and sprout growth was decreased by 20 ml/L piccolo (GA …
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Investigating carotenoid loss after drying and storage of orange-fleshed sweet potato
Biofortified orange-fleshed sweetpotato (OFSP) is being promoted to tackle vitamin A deficiency, a serious public health problem affecting children and pregnant/lactating women in sub-Saharan Africa. The aim of the study was to quantify and understand the factors influencing carotenoid losses in …
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Insights into the Molecular Mechanism of Streptomyces ipomoeae Pathogenesis: Thaxtomin C Biosynthesis and Regulation
… is the causal agent of Streptomyces soil rot of sweetpotato, a disease marked by highly necrotic destruction of adventitious roots, including the development of necrotic lesions on the fleshy storage roots. To facilitate further genetic manipulation of this agriculturally important pathogen, an …
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The effect of controlled atmospheres on the keeping quality of sweetpotatoes
… Goldrush, Nemagold, Oklamar, and Porto Rico sweetpotato varieties was studied in the 1963-65 period. Evaluations were made of decay loss, weight and dry matter loss, soluble solids percent, carotene content, taste of raw and baked roots, keeping after storage, and the ability of roots to …