B.C. Ebah-Djedji
Laboratory of Technological Research Station (SRT), National Agronomic Research Centre (CNRA), 08 BP 881, Abidjan 08 (C�te d�Ivoire)
K.M. Dje
Laboratory of Biochemistry and Food Technology, University of Abobo Adjame, UFR/STA, 02 BP 801, Abidjan 02 (C�te d�Ivoire)
B.N`ue
Laboratory of Food Crops Research Station (SRCV), National Agronomic Research Centre (CNRA), 01 BP 1740, Abidjan 08 (C�te d�Ivoire)
G.P. Zohouri
Laboratory of Food Crops Research Station (SRCV), National Agronomic Research Centre (CNRA), 01 BP 1740, Abidjan 08 (C�te d�Ivoire)
N.G. Amani
Laboratory of Food Biochemistry and Tropical Products Technology, University of Abobo Adjame, UFR/STA, 02 BP 801, Abidjan 02, Cote d�Ivoire
ABSTRACT
The aim of this study was to evaluate the variation of starch yields and dry contents from the tuberous roots of five improved cassava varieties ("Bonoua2", "Ay15", "971A", I88/00158 and "90/00039") at different harvest periods (11, 13, 15 and 17 months after planting). Indeed, the harvest period had significant effect at 0.05 level on dry matter contents and starch yields. All improved cassava varieties had their peak of dry matter contents (40.57%±2.41) and starch yields (20.17%±2.82%) at 13 months after planting. The tuberous roots of "Bonoua2" improved cassava variety had the highest starch yields at 11, 13 and 15 months after planting, with the respective values of 18.26%±1.52%, 20.78%±2.57% and 18.08%±3.18% respectively. Concerning the highest starch yield at 17 months after planting, it was obtained with "971A" improved cassava variety (19.38%±2.55%). The tuberous roots of "Bonoua2" improved cassava variety detained also the highest dry matter contents at 11 and 15 months after planting. The values were of 39.83%±1.19% and 38.70±2.61% respectively. As for the highest dry contents at 13 and 17 month after planting, they were given by the tuberous roots of "971A" improved cassava variety, with the respective values of 42.99%±1.48% and 39.04%±2.57%.
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How to cite this article
B.C. Ebah-Djedji, K.M. Dje, B.N`ue, G.P. Zohouri and N.G. Amani, 2012. Effect of Harvest Period on Starch Yield and Dry Matter Content from the Tuberous
Roots of Improved Cassava (Manihot esculenta Crantz) Varieties. Pakistan Journal of Nutrition, 11: 414-418.
DOI: 10.3923/pjn.2012.414.418
URL: https://scialert.net/abstract/?doi=pjn.2012.414.418
DOI: 10.3923/pjn.2012.414.418
URL: https://scialert.net/abstract/?doi=pjn.2012.414.418
REFERENCES
- Akparobi, S.O., S.O. Togun and I.J. Ekanayake, 1998. Assessment of cassava genotypes for resistance to cassava mosaic disease, cassava bacterial blight and cassava green mite at a lowland and mid-altitude site in nigeria. Afr. Crop Sci. J., 6: 385-396.
Direct Link - Alves, A.A.C. and T.L. Setter, 2000. Response of cassava to water deficit: Leaf area growth and abscisic acid. Crop Sci., 40: 131-137.
CrossRefDirect Link - Amani, N.G., F.A. Tetchi, D. Dufour and A. Kamenan, 2002. A comparative study of the syneresis of yam starches and other modified starches. J. Food Technol. Africa, 7: 4-8.
Direct Link - Apea-Bah, F.B., I. Oduro, W.O. Ellis and O. Safo-Kantanka, 2011. Factor analysis and age at harvest effect on the quality of flour from four cassava varieties. World J. Dairy Food Sci., 6: 43-54.
Direct Link - Benesi, I.R.M., C.C. Moyo, J. Mkumbira, F.P. Chipungu, N.M. Mahungu and V.S. Sandifolo, 2003. The Release of Three New Improved Cassava Varieties in Malawi. In: Root Crops: The Small Processor and Development of Local Food Industries for Market Economy, Akoroda, M.O. (Ed.). IITA, Ibadan, Nigeria, pp: 405-411.
- Cock, J.H., 1976. Characteristics of high yielding cassava varieties. Exp. Agric., 12: 135-143.
CrossRefDirect Link - Krochmal, A. and B. Kilbride, 1966. An inexpensive laboratory method for cassava starch extraction. J. Agric. Univ. Puerto Rico, 50: 252-253.
Direct Link - Megnanou, R.M., S.K. Kouassi, E.E. Akpa, C. Djedji, N. Bony and S.N. Lamine, 2009. Physiocochemical and biochemical characteristics of improved cassava varieties in cote d'Ivoire. J. Anim. Plant Sci., 5: 507-514.
Direct Link - Mohamed, M.A.H., A.A. Alsadon and M.S. Al-Mohaidib, 2009. Corn and potato starch as an agar alternative for Solanum tuberosum micropropagation. Afr. J. Biotechnol., 8: 9199-9203.
Direct Link - Oguntunde, P.G., 2005. Whole-plant water use and canopy conductance of cassava under iimited available soil water and varying evaporative demand. Plant Soil, 278: 371-383.
CrossRefDirect Link - Osiru, D.S.O. and S.K. Hahn, 1995. Dry matter production and partitioning in cassava (Manihot esculenta) intercropped with maize or groundnut. Proceedings of the 6th Triennial Symposium of the International Society for Tropical Root Crops-Africa Branch, October 22-28, 1995, Lilongwe, Malawi, pp: 76.
- Sofa-Kantanka, O. and M. Osei-Minta, 1996. Effects of cultivar and age at harvest on the dry matter, starch gelatinization properties and the cooking quality of cassava. Ghana J. Agric. Sci., 28-29: 81-89.
Direct Link - Wholey, D.W. and R.H. Booth, 1979. Influence of variety and planting density on starch accumulation in cassava roots. J. Sci. Food Agric., 30: 165-170.
Direct Link - Peter, Z.S., 2007. Studies on variation in physical characters and chemical components of cassava (Manihot esculenta Crantz) tubers. Agric. J., 2: 613-616.
Direct Link