Cookies on CAB eBooks

Like most websites we use cookies. This is to ensure that we give you the best experience possible.

 

Continuing to use www.cabi.org  means you agree to our use of cookies. If you would like to, you can learn more about the cookies we use.

CAB eBooks

Ebooks on agriculture and the applied life sciences from CAB International

CABI Book Chapter

Impact of science on African agriculture and food security.

Book cover for Impact of science on African agriculture and food security.

Description

This book, which contains 24 chapters and organized into three major parts, compiles available evidence of the impact of agricultural research in Eastern and Southern Africa to facilitate the mobilization of much needed additional investments for agricultural research and development in the continent. Part I addresses current issues, challenges and contributions in African agricultural development...

Metrics

Chapter 4 (Page no: 46)

Impact of sorghum research and development in Zimbabwe: the case of SV 2.

Sorghum and millet are important for human consumption in marginal rainfall regions, for low income consumers in other regions and for beer production in Zimbabwe. After independence the research and policy emphasis on sorghum shifted towards communal farmers, from red-seeded to the white-seeded sorghum varieties. The variety SV 2 was identified from an International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) regional trial in 1980 released in 1987 and subsequently commercialized by Seed Co-op, a private seed company. The diffusion of SV 2 was accelerated during the dry years of the 1990s. In this study an attempt was made to assess the impact of R&D investment on SV 2. Farm surveys indicated that in a normal year there were substantial yield gains from the introduction of SV 2 alone without and with the use of fertilizer. The benefits of the introduction of SV 2 are calculated with two different assumptions: with and without fertilizer. The estimated net present value for 10, 15 and 20% discount rate was positive indicating that the development and transfer SV 2 generated benefits that are over and above the amount invested. The estimated internal rate of return was about 25%. The effect of use of fertilizer on IRR was modest. Sensitivity analysis indicated that omission of administration, overhead and depreciation costs, and the extended benefit flow period significantly affect the rate of return to technology development and transfer.

Other chapters from this book

Chapter: 1 (Page no: 1) Challenges facing African agriculture. Author(s): Babu, S. C. Anandajayasekeram, P. Rukuni, M.
Chapter: 2 (Page no: 13) The role of impact assessment in evaluating agricultural investments in Eastern and Southern Africa. Author(s): Anandajayasekeram, P. Babu, S. Rukuni, M. Workneh, S.
Chapter: 3 (Page no: 34) Economics of wheat research in Kenya. Author(s): Makanda, D. W. Oehmke, J. F.
Chapter: 5 (Page no: 57) Ex-ante analysis of the Sorghum and Millet Improvement Program. Author(s): Anandajayasekeram, P. Martella, D. R. Sanders, J. Kupfuma, B.
Chapter: 6 (Page no: 68) Impact of pearl millet research and development in Namibia: the case of Okashana 1. Author(s): Anandajayasekeram, P. Martella, D. R. Sanders, J. Kupfuma, B.
Chapter: 7 (Page no: 74) Economic impact of maize research in Tanzania. Author(s): Moshi, A. J. Anandajayasekeram, P. Kaliba, A. Martella, D. Mwangi, W. Shao, F. M.
Chapter: 8 (Page no: 83) Economic returns from livestock research and development in Tanzania: 1966-1995. Author(s): Kaliba, A. Fox, S. Norman, D.
Chapter: 9 (Page no: 91) Impact of the Russian wheat aphid integrated control programme in South Africa. Author(s): Marasas, C. N.
Chapter: 10 (Page no: 103) The impact of public investment in maize research in Kenya. Author(s): Karanja, D. D.
Chapter: 11 (Page no: 116) Impact of maize technology development and transfer in Ethiopia. Author(s): Zegeye, T. Tesfahun, G. Anandajayasekeram, P.
Chapter: 12 (Page no: 127) Evaluating agricultural research and extension in Tanzania: the production function approach. Author(s): Isinika, A. C.
Chapter: 13 (Page no: 137) Impact assessment of sorghum research in Zambia. Author(s): Chisi, M.
Chapter: 14 (Page no: 147) The economic impact of investments in cassava research in Uganda. Author(s): Bua, A. Acola, G. Adupa, R. L. Otim-Nape, G. W. Baguma, Y. K. Sserunkuma, D. Manyong, V. Coulibaly, O.
Chapter: 15 (Page no: 152) Impact assessment of groundnut research in Zimbabwe. Author(s): Mazhangara, E. P. Anandajayasekeram, P. Mudhara, M. Martella, D. Murata, M.
Chapter: 16 (Page no: 161) The rate of return to wine grape research and technology development in South Africa. Author(s): Townsend, R. Zyl, J. van
Chapter: 17 (Page no: 171) Socio-economic impact of lachenalia research in South Africa. Author(s): Niederwieser, J. G.
Chapter: 18 (Page no: 184) Impact assessment of sunflower in Zimbabwe. Author(s): Murata, M. Anandajayasekeram, P. Mudhara, M. Martella, D. Mazhangara, E.
Chapter: 19 (Page no: 192) Impact assessment of cotton research in Zimbabwe: 1970-1995. Author(s): Mudhara, M. Anandajayasekeram, P. Kupfuma, B. Mazhangara, E.
Chapter: 20 (Page no: 199) The socio-economic impact of Proteaceae Research and Technology Development in South Africa. Author(s): Esterhuizen, J. M. C.
Chapter: 21 (Page no: 210) Impact assessment of the biological control of Prosopis species in the Britstown-De Aar District, South Africa. Author(s): Esterhuizen, J. M. C.
Chapter: 22 (Page no: 221) Socio-economic impact of the control of ticks and tick-borne diseases in South Africa. Author(s): Randela, R.
Chapter: 23 (Page no: 236) Impact of investments in livestock research and development programmes in South Africa. Author(s): Mokoena, M. R.
Chapter: 24 (Page no: 249) Overview of impact assessment methodologies. Author(s): Anandajayasekeram, P. Babu, S.

Chapter details

  • Author Affiliation
  • International Livestock Research Institute, ILRI, Manager, Capacity Strengthening Unit (CaSt), PO Box 5689 Addis Ababa, Ethiopia.
  • Year of Publication
  • 2007
  • ISBN
  • 9781845932671
  • Record Number
  • 20073254343