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The amount of genotypic and phenotypic variability that exists in a species is important for selection and initiating breeding programs. Yam bean is grown locally in tropical countries of the Americas and Asia for their tasty storage roots, which usually have low dry matter content. The crop was recently introduced in Uganda and other East and Central African countries to supplement iron (Fe) and protein content in diets. This study aimed to estimate genetic variability for root yield and quality traits among 26 yam bean accessions in Uganda. A randomized complete block design was used with two replications across two ecogeographical locations and two seasons during 2012 and 2013. Near-infrared reflectance spectroscopy (NIRS) was used to determine quality of storage root samples. Significant differences among genotypes were observed for all traits except root protein, zinc (Zn), and phosphorus contents. Genotypic variance components ( ) were significant for storage root fresh yield (SRFY), storage root dry matter (SRDM), storage root dry yield (SRDY), vine yield (VNY), fresh biomass yield (FBY), and storage root starch (STA) and Fe contents. For traits with significant the broad sense heritability estimates ranged from 58.4% for SRDY to 83.6% for FBY; and phenotypic coefficients of variation were high for SRFY (66%), SRDY (53.3%), VNY (60.5%), and FBY (59%), but low to medium for SRDM (22.6%), STA (15.1%), and Fe (21.3%). Similarly, the genotypic coefficients of variation were high for SRFY (56.7%), SRDY (53.3%), VNY (55%), and FBY (53.9%); and low for SRDM (20%), STA (12.4%), and Fe (17.8%). There were strong positive correlations between SRFY and both SRDY (r = 0.926) and FBY (r = 0.962), but low-to-moderate correlations among quality traits. It should be possible to breed for high dry matter yam beans by using low dry matter accessions due to the observed genetic variation ( = 9.3%2), which is important if the high dry matter Pachyrhizus tuberosus accessions (known as chuin) from Peru cannot be accessed. This study indicated substantial genetic variation for yield and quality traits in yam bean, demonstrating potential for adaptability to growing conditions and consumer needs in East and Central Africa and for genetic improvement through selection.

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, and ornament for centuries. Indigenous horticultural crops play an especially important role in human nutrition. Most Asians do not have the economic ability or habit to take vitamin/mineral supplements. Many Asian diets are high in native vegetables

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nontraditional information for each fruit, giving information that is often lacking in other introductory fruit books. Specifically, information on medicinal properties, folklore, and contributions to the diet are most useful and interesting additions

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three randomly selected roots. Total carbohydrates for ‘Avoyelles’ was 18.1 g⋅100 g –1 on a fresh-weight basis (fwb). Dietary fiber was 2.53 g⋅100 g –1 fwb. Calcium was 35.2 mg⋅100 g –1 fwb and represents 4% of the daily diet per 110-g serving

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). There is a body of research demonstrating that consumption of fruits, vegetables, and whole grains in the context of a regular diet can contribute to positive health outcomes ( Bellavia et al., 2013 ). The World Health Organization (WHO) has promoted

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—including soils and climate, propagation, planting design, training and pruning, and pest problems. Next is Harvest, Postharvest Handling—including maturity, harvest method, postharvest handling, and storage. Each of the chapters ends with a Contribution to Diet

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relationships between plants and health have been and continue to be of great concern for humankind considering both diet and medicinal uses. Antiquity. Plant cures as well as nutrition became part of ancient medicine based on the philosophical concepts in

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developing new markets. Specifically, this research aimed to 1) identify how much attributes such as size, price, quality, locally grown, and nutrition-diet-health, influence consumers' decisions to purchase chestnuts, 2) generate information on the relative

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-promoting bioactive compounds in the human diet. Bioactive compounds in fruits and vegetables vary significantly in both type and concentration among species and cultivars ( Patil et al., 2009 ; Uckoo et al., 2011a ). To increase the levels of bioactive compounds

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known artificial diet capable of maintaining this insect during the larval stages. However, Cry1Ia1 is also toxic to the tobacco hornworm ( Manduca sexta ), an insect for which eggs and an artificial diet have been developed and are commercially

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