This study evaluates the physical and physicochemical properties of three sugary cassava (Manihot esculenta Crantz) landraces: São Francisco Bag 3, Manicueira 62, and Castanhal Iracema. These three landraces showed high estimated productivity (≥3.93kg plant-1) and had a high sugar content (≥3.92g 100g-1 of root), making them viable for use in syrup production, especially the São Francisco Bag 3 landrace (4.76g 100g-1). The Manicueira 62 landrace had the highest starch content (4.40g 100g-1). The three sugary cassava landraces exhibited high levels of cyanide (>195mg kg-1), indicating the need for processing prior to consumption.435792796Albuquerque, M., (1969) A Mandioca Na Amazônia, p. 222. , Belém: SUDAM(1997) Official Method of Analysis of Association of Official Analytical Chemistry. 16.ed, p. 1200. , AOAC, GaithersburgBligh, E.G., Dyer, W.J., A rapid method of total lipid extraction and purification (1959) Canadian Journal Biochemistry Physiology, 37 (8), pp. 911-917. , http://www.nrcresearchpress.com/toc/cjbp/37/8, Available from, Accessed: Nov. 17, 2011. doi: 10.1139/o59-099Bolhuis, G.G., The toxicity of cassava roots (1954) Netherlands Journal of Agricultural Science, 2 (3), pp. 176-185Cardoso, A.P., Processing of cassava roots to remove cyanogens (2005) Journal of Food Composition and Analysis, 18 (5), pp. 451-460. , http://www.sciencedirect.com/science/journal/08891575/18/5, Available from, Accessed: Nov. 17, 2011. doi: 10.1016/j.jfca.2004.04.002Cardoso, E.M., Sugary cassava (Manihot esculenta Crantz): Preliminary morphological characterization and agronomic evaluation (2012) INTERNATIONAL SCIENTIFIC MEET of the CASSAVA BIOTECHNOLOGY NETWORK, , http://webapp.ciat.cgiar.org/biotechnology/cbn/sixth_international_meeting/Posters-PDF/PS-2/E_Cardoso_AAA.pdf, 2004 Cali. Expanded abstract. Cali: Centro Internacional de Agricultura Tropical, 2004, Available from, Accessed: Apr. 9Carvalho, L.J.C.B., Identification and characterization of a novel cassava (Manihot esculenta Crantz) clone with high free sugar content and novel starch (2004) Plant Molecular Biology, 56 (4), pp. 643-659. , http://www.springerlink.com/content/h7769x33x5784x4t/fulltext.pdf, Available at, Accessed: Nov. 17, 2011. doi: 10.1007/s11103-004-4873-9Carvalho, L.J.C.B., (2000) Raiz De Reserva De Mandioca: Um Sistema Biológico De Múltiplas Unidades, p. 16. , Brasília: Embrapa Recursos Genéticos e BiotecnologiaCereda, M.P., Vilpoux, O.F., (2003) Tecnologia, Uso E Potencialidades De Tuberosas Amiláceas Latino Americanas, p. 711. , São Paulo: Cargill FoundationCereda, M.P., (2001) Propriedades Gerais Do Amido, p. 221. , São Paulo: Cargill FoundationChroma, M.E.T.E.R., (1989) Instruction Manual, p. 87. , Osaka: Minolta CarneraDer Agopian, R.G., Identification of fructooligosaccharides in different banana cultivars Journal of Agricultural and Food Chemistry, 56 (9), pp. 3305-3310. , http://pubs.acs.org/doi/abs/10.1021/jf073011l, Available from, Accessed: Nov. 17, 2011. doi: 10.1021/jf073011lEssers, A.J.A., (1993) Assay For the Cyanogen Content In Cassava Products, p. 9. , Wageningen: Wageningen University(2009) FAOSTAT: Top Production Cassava, , http://faostat.fao.org/site/339/default.aspx, FAO (FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS), Accessed: Nov 14, 2011. Online. Available fromFellows, P.J., (2009) Food Processing Technology: Principles and Practice. 3.ed, p. 980. , Boca Raton: CRCFuccillo, D., (1997) Biodiversity In Trust, p. 371. , Cambridge UK: Cambridge UniversityFukuda, W.M.G., (1997) Caracterização E Avaliação De Germoplasma De Mandioca (Manihot Esculenta Crantz), p. 161. , Cruz das Almas: EMBRAPAHillocks, R.J., (2002) Cassava: Biology, Production and Utilization, p. 332. , New York: CABIRickard, J.E., Behn, K.R., Evaluation of acid and enzyme hydrolytic methods for the determination of cassava starch (1987) Journal of the Science of Food and Agriculture, 41 (4), pp. 373-379. , http://onlinelibrary.wiley.com/doi/10.1002/jsfa.2740410409/abstract, Available from, Accessed: Nov. 17, 2011. doi: 10.1002/jsfa.2740410409Sagrilo, E., Effect of the harvesting time in the vegetative growth, yield and quality of the storage roots of three cassava cultivars (2002) Bragantia, 61 (2), pp. 115-125. , http://www.scielo.br/scielo.php?pid=S0006-87052002000200005&script=sci_abstract, Available from, Accessed: Nov. 17, 2011. doi: 10.1590/S0006-87052002000200005Siqueira, M.V.B.M., Microsatellite polymorphisms in cassava landraces from the Cerrado biome, Mato Grosso do Sul, Brazil (2010) Biochemical Genetics, 48 (9-10), pp. 879-895. , http://www.springerlink.com/content/m0r7266082x35k87/, Available at, Accessed: Nov. 17, 2011. doi: 10.1007/ s10528-010-9369-5Taylor, N., Development and application of transgenic technologies in cassava (2004) Plant Molecular Biology, 56 (4), pp. 671-688. , http://www.springerlink.com/content/j4001qhu4276w370/, Available at, Accessed: Nov. 17, 2011. doi: 10.1007/s11103-004-4872-xVieira, E.A., Genetic divergence among sugary and nonsugary cassava accessions (2008) Pesquisa Agropecuária Brasileira, 43 (12), pp. 1707-1715. , http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2008001200010&lng=en&nrm=iso&tlng=pt, Available at, Accessed: Nov. 17, 2011. doi: 10.1590/S0100-204X2008001200010