Variation of quality traits in cassava roots evaluated in landraces and improved clones

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dc.creatorChavez, Alba L.
dc.creatorSánchez, T.
dc.creatorJaramillo, Gustavo
dc.creatorBedoya Flores, JM
dc.creatorEcheverry, J
dc.creatorBolaños Vidal, E.A.
dc.creatorCeballos, H.
dc.creatorIglesias, C.A.
dc.date2005-01
dc.date2014-10-02T08:33:26Z
dc.date2014-10-02T08:33:26Z
dc.date.accessioned2026-06-27T14:32:05Z
dc.descriptionAbout 70 million people obtain more than 500 cal per day from cassava roots. The crop is fundamental as food security of poor rural communities, but little is known about variability of root nutritional and quality traits. Roots from 2457 genotypes comprising landraces and improved clones, were screened for their nutritional (cyanogenic potential, carotene, minerals, and sugars contents) and agronomic (dry matter content, color intensity, and postharvest physiological deterioration) traits. The objective was to assess the range of variation for the traits evaluated to define future research strategies. Results are mostly based on unreplicated measurements. Carotene contents in the roots ranged from 0.102 to 1.040 mg/100 g fresh tissue and correlated positively with color intensity (? = 0.860) and cyanogenic potential (? = 0.305). Average levels of Fe and Zn were 17.1 and 7.5 mg/kg, respectively. Many clones derived from Meso-America showed high protein levels in the roots, probably as a result of the introgression from wild relatives only found in that region. The observed values for carotene, proteins and minerals contents suggest the potential for improving the nutritive value of cassava.
dc.identifierhttps://hdl.handle.net/10568/44221
dc.identifier.urihttp://hdl.handle.net/123456789/80993
dc.languageen
dc.publisherSpringer
dc.rightsLimited Access
dc.subjectmanihot esculenta
dc.subjectclones
dc.subjectpostharvest physiology
dc.subjectdeterioration
dc.subjectcarotenoids
dc.subjectcrude protein
dc.subjectnutritive value
dc.subjectmineral content
dc.subjectdry matter content
dc.subjectevaluation
dc.subjectfisiología postcosecha
dc.subjectdeterioro
dc.subjectcarotenoides
dc.subjectproteína bruta
dc.subjectvalor nutritivo
dc.subjectcontenido mineral
dc.subjectcontenido de materia seca
dc.subjectevaluación
dc.subjecthorticulture
dc.subjectgenetics
dc.titleVariation of quality traits in cassava roots evaluated in landraces and improved clones
dc.typeJournal Article

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Centro Internacional de Agricultura Tropical (CIAT)