Alves, A. A. C. (2002). Cassava botany and physiology. In Cassava: Biology, Production and Utilization, 67–90 (Eds Hillocks, R. J., Thresh, J. M. and Bellotti, A.). Wallingford, UK: Centre for Agriculture and Biosciences International.
Bainbridge, Z., Tomlins, K., Wellings, K. and Westby, A. (1996). Methods for Assessing Quality Characteristics of Non-Grain Starch Staples. (Part 2. Field Methods.). Chatham, UK: Natural Resources Institute.
Bouyoucos, G. J. (1962). Hydrometer method improved for making particle size analysis of soils. Agronomy Journal 54:464–465.
Bray, R. H. and Kurtz, L. T. (1945). Determination of total, organic and available forms of phosphorus in soils. Soil Science 59:39–45.
Bremner, J. M. (1965). Total nitrogen. In Methods of Soil Analysis. Part 2: Chemical and Microbiological Properties, 1149–1178 (Ed Black, C. A.). Wisconsin, USA: Madison.
Carvalho, L. J. C. B., Cascardo, J. C. M., Ferreria, M. A. and Loureiro, M. E. (1993). Studies on proteins and enzymes related to tuberization and starch biosynthesis in cassava roots. In International Scientific Meeting of the Cassava Biotechnology Network, 234–238 (Eds Roca, W. and Thro, A.). Proc. 1st, held in Cartagena de Indias, Colombia, January 1992. Cali, Colombia: CIAT.
Cline, M. N. and Neely, D. (1983). The histology and histochemistry of the wound healing process in geranium cuttings. Journal of the American Society for Horticultural Science 108:450–496.
Davies, F. T., Lazarte, J. E. and Joiner, J. N. (1982). Initiation and development of roots in juvenile and mature leaf bud cuttings of Ficus pumila L. American Journal of Botany 69:804–811.
Didier, P. and El-Sharkawy, M. A. (1994). Sink-source relations in cassava effects of reciprocal grafting on yield and leaf photosynthesis. Experimental Agriculture 30:359–367.
Ekanayake, I. J. (1994). Terminology for growth analysis of cassava. Tropical Root and Tuber Crops Bulletin 8:2–3.
Enyi, B. A. C. (1973). Growth rates of three cassava varieties (Manihot esculenta Crantz) under varying population densities. The Journal of Agricultural Science 81:15–28.
Ganado, Z. S. (1956). The Effect of Length of Cassava Cutting on Yield. B.Sc. Thesis, Central Philippine University (CPU), Iloilo City.
Hahn, S. K. and Hozyo, Y. (1984). Sweet potato. In The Physiology of Tropical Field Crops, 551–576 (Eds Goldsworthy, P. R. and Fisher, N. M.). New York: John Wiley and Sons.
Jackson, M. B. (ed.) (1986). New Root Formation in Plants and Cuttings. Dordrecht: Martinus Nijhoff Publishers.
Jones, S., Robin, G., Garry, J., Johnson, L. and Benn, A. (2013). Production, productivity, quality standards and product mixes of roots and tubers crops in the CFC-funded project. Publication DO/029/12. Available at: http://www.cardi.org/cfc-rt/files/downloads/2013/09/Publ-9-Production-Productivity-RT-Jones-et-al.pdf. verified 19 February, 2016.
Kramer, P. J. and Boyer, J. S. (1995). Roots and root systems. In Water Relations of Plants and Soil, 115–166 (Eds Kramer, P. J. and Boyer, J. S.). San Diego, CA: Academic Press, Inc.
Lahai, M. T., George, J. B. and Ekanayake, I. J. (1999). Cassava (Manihot esculenta Crantz) growth indices, root yield and its components in upland and inland valley ecologies of Sierra Leone. Journal of Agronomy and Crop Science 182:239–248.
Lahai, M. T., Ekanayake, I. J. and Koroma, J. P. C. (2013). Influence of canopy structure on yield of cassava cultivars at various toposequences of an inland valley agro ecosystem. Journal of Agricultural Biotechnology and Sustainable Development 5:36–47.
Lebot, V. (2009). Tropical Root and Tuber Crops: Cassava, Sweet Potato, Yam and Aroids, Wallingford, UK: Centre for Agriculture and Biosciences International publication. Available at: http://Amazon.com.
Leihner, D. (2002). Agronomy and cropping systems. In Cassava: Biology, Production and Utilization, 91–112 (Eds Hillocks, R. J., Thresh, J. M. and Bellotti, A.). Wallingford, UK: Centre for Agriculture and Biosciences International.
Lenis, J. I., Cali, F., Jaramillo, G., Perez, J. C., Ceballos, H. and Cock, J. H. (2005). Leaf retention and cassava productivity. Field Crops Research 95:126–134.
Malpighi, M. (1686). Opera Omnia, London: Royal Society of London.
McKeague, J. A. (1978). Manual on Soil Sampling and Methods of Analysis, 2nd edn. Ottawa, Canada: Canadian Society of Soil Science, Suite 907, 151 Slater St.
Nassar, N. M. A. and Teixeira, R. P. (1983). Seed germination of wild cassava species (Manihot spp.). Ciencia e Cultura 35:630–632.
Onwueme, I. C. (1978). The Tropical Tuber Crops: Yam, Cassava, Sweet Potato and Cocoyam, New York: John Wiley and Sons.
Osiru, D. S. O., Porto, M. C. M. and Ekanayake, I. J. (1997). Physiology of cassava. IITA Research Guide 55. Training Program, IITA, Ibadan, Nigeria.
Rojanaridpiched, C., Limsila, A., Supraharn, D., Boonseng, O., Poolsanguan, P., Tiraporn, C. and Kawano, K. (1995). Recent progress in cassava varietal improvement in Thailand. In Cassava Breeding, Agronomy Research and Technology Transfer in Asia, 124–134 (Ed Howeler, R. H.). Proc. 4th Regional Workshop, held in Trivandrum, Kerala, India. 2-6 November 1993. Cali, Colombia: CIAT.
Scott, G. J., Rosegrant, M. W. and Ringler, M. W. (2000). Roots and Tubers for the 21st Century: Trends, projections and policy options. Food, Agriculture and the environment discussion paper 31. International Food Policy Research Institute. Available at: http://pdf.usaid.gov/pdf_docs/Pnach747.pdf, verified 19 February, 2016.
Tongglum, A., Vichukit, V., Jantawat, S., Sittibusaya, C., Tiraporn, C., Sinthuprama, S. and Howeler, R. H. (1992). Recent progress in cassava agronomy research in Thailand. In Cassava Breeding, Agronomy and Utilization Research in Asia, 199–223 (Ed Howeler, R. H.). Proc. 3rd Regional Workshop, held in Malang, Indonesia. Oct 22–27, 1990.
Velasco, O. L. (1982). The effects of different lengths of cutting on the growth and yield of cassava. B.Sc. thesis. WLAC, San Marcelino, Zambales.
Vichukit, V., Rodjanaridpiched, C., Poonsaguan, P., Sarobol, E., Cheamchamnuncha, C., Changlek, P., Piyachomkwan, K. and Sriroth, K. (2004). Huay Bong 60: New developed Thai cassava (Manihot esculenta Crantz) variety with improved starch yield and quality. In The 6th International Scientific Meeting of the Cassava Biotechnology Network (CBN). March 8–14, 2004. Cali, Colombia.
Villamayor, F. G., Dingal, A. G., Evangelio, F. A., Ladera, J. C., Medellin, A. C., Sajise, G. E. and Burgos, G. B. (1992). Recent progress in cassava agronomy research in the Philippines. In Cassava Breeding, Agronomy and Utilization Research in Asia, 245–259 (Ed Howeler, R. H.). Proc. 3rd Regional Workshop, held in Malang, Indonesia.
Walkley, A. and Black, I. A. (1934). An examination of Degtjareff method for determining soil organic matter and a proposed modification of the chromic acid titration method. Soil Science 37:29–37.