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International research on vegetable improvement in East and Southern Africa: adoption, impact, and returns.(Report)

Schreinemachers, Pepijn ; Sequeros, Teresa ; Lukumay, Philipo Joseph

Agricultural Economics, 2017, Vol.48(6), p.707(11) [Tạp chí có phản biện]

ISSN: 0169-5150 ; DOI: 10.1111/agec.12368

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  • Nhan đề:
    International research on vegetable improvement in East and Southern Africa: adoption, impact, and returns.(Report)
  • Tác giả: Schreinemachers, Pepijn ; Sequeros, Teresa ; Lukumay, Philipo Joseph
  • Chủ đề: Vegetables ; Plant Biochemistry ; Human Nutrition ; Agricultural Policy
  • Là 1 phần của: Agricultural Economics, 2017, Vol.48(6), p.707(11)
  • Mô tả: To purchase or authenticate to the full-text of this article, please visit this link: http://onlinelibrary.wiley.com/doi/10.1111/agec.12368/abstract Byline: Pepijn Schreinemachers, Teresa Sequeros, Philipo Joseph Lukumay Keywords: Q11; Q12; Q16; Q18; O32; O33; O55; D60; D61; Agriculture; Commercial pathways; Economic surplus model; Impact evaluation; Impact at scale; Technology adoption; Tanzania Abstract There is a lack of evidence for impact at scale of vegetable research and development, although the importance of vegetables for human nutrition and smallholder incomes is generally understood. We therefore study adoption and impact of improved tomato and African eggplant varieties developed through international agricultural research, released by national agricultural research and extension systems, and supplied to farmers by private seed companies in East and Southern Africa from 1990 to 2014. The study finds that in 2014, varieties developed by the World Vegetable Center accounted for 50% of tomato and 98% of African eggplant commercial seed production in East and Southern Africa. For Tanzania alone, investment in crop improvement generated economic gains of US$ 255 million for tomato and US$ 5 million for African eggplant up to 2014. The internal rate of return is 26% for tomato and 12% for African eggplant, though we project the latter to increase to 26% by 2024 as the variety was released only in 2007. These findings support the view that agricultural policy and investment reoriented towards contemporary nutritional challenges will give high returns to investment. CAPTION(S): Appendix. Supporting Information
  • Ngôn ngữ: English
  • Số nhận dạng: ISSN: 0169-5150 ; DOI: 10.1111/agec.12368

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