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Blog Archives

New methodology to control whitefly results in patent filing by Embrapa

The unit of Genetic and Biotechnology Resources of Brazil’s National Agricultural Research Company (Embrapa) located in the country’s capital, Brasília, has filed on June 7, 2016 a patent request for the new methodology of production of a resistant plant to the pests through the RNA interfering technology. Read the full …

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The adoption problem; or why we still understand so little about technological change in African agriculture

The notion of adoption is central to efforts to measure technologicalchange in African agriculture, and plays an important role in the evaluation ofreturn on investment in agricultural research and technology development.However, the adoption concept, as it is commonly used in both the literature anddevelopment research practice, is seriously flawed and …

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Price Transmission Process in Vertical Markets: An Empirical Analysis of Onion Markets in Tamil Nadu State (India)

The objective of the paper is to examine price transmission process between wholesale and retail markets by adopting Asymmetric Price Transmission (APT) Model.  The paper has taken a case of Onion ((Allium cepa L.) wholesale and retail markets in Tamil Nadu state, India.   The paper used wholesale and retail prices data from …

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Ex ante assessment of dual-purpose sweet potato in the crop-livestock system of western Kenya: A minimum-data approach

Mixed crop–livestock systems have a crucial role to play in meeting the agricultural production challenges of smallholder farmers in sub-Saharan Africa. Sweet potato is seen as a potential remedial crop for these farmers because of its high productivity and low input requirements, while its usefulness for both food and feed (dual-purpose) make …

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Using Agriculture to Improve Child Health: Promoting Orange Sweet Potatoes Reduces Diarrhea

Vitamin A deficiency (VAD) is prevalent throughout the developing world, and causes night blindness and increases child morbidity and mortality. We studied the health benefits of biofortification in reducing VAD, using a cluster-randomized impact evaluation in 36 villages in northern Mozambique. Based on a sample of 1,321 observations of children …

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Degeneration in sweetpotato due to viruses, virus‐cleaned planting material and reversion: a review

This review examines viral degeneration in sweetpotato in different regions of the World, particularly that caused by Sweet potato chlorotic stunt virus (SPCSV) and Sweet potato feathery mottle virus (SPFMV), comparing impacts on yield in single and complex infections of all the major viruses affecting the crop. How cultivars are …

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