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Impact of Radish Research and Extension in Bangladesh

Dr. Md. Ismail Hossain
Chief Scientific Officer and Head
Agricultural Economics Division, BARI, Gazipur

M.A. Monayem Miah
Scientific Officer
Agricultural Economics Division, BARI, Gazipur

Abstract/ Executive Summary:

The rate of change of area, production and yield of radish over the last 21 years were found 2.62, 3.62 and 1.00 percent respectively. After the release of improved varieties of radish, the area and production were increased dramatically. The internal rate of return in radish research and extension was found 19 percent. About 13.30 percent more production of radish was made available in 1997-98. It might be due to the farmers’ adoption of the BARI-released radish varieties. Under various assumptions about the magnitude o the benefits and the research and extension expenditures, the IRR ranged between 14 percent 14 percent to 28 percent. This indicates that the funding of radish research and extension is a good investment.

Keywords: Radish, Research, Extension, Adoption

Location:

Start Date:

End Date:

Program Area: Socio-economic and Policy

Non-commodity: Adoption of technology

Objectives:

i. To find the adoption of improved varieties of radish and yield advantage over local/other varieties

ii. To estimate the rate of returns to radish research and extension.

Methodology:

The Ex-post analysis with the help of economic surplus Model was considered for present study to estimate the rate of returns of the improved varieties of radish that have been replacing the local /other radish varieties. There are two distinct parts of the analysis to obtain the rate of return to research and extension expenditures. The first is estimating the yearly stream of benefits in monetary terms that flow from an adopted intervention such as improved varieties. This was done by using the economic surplus model. Once the yearly benefits have been calculated, they are then related to the yearly cost of research and extension by calculating a benefit-cost ratio or internal rate of return (IRR). The analysis was also attempted with the close economy. The closed economy commodity market is defined as a commodity that is totally produced and consumed domestically and is neither imported nor exported. The Akino and Hayami (1975) approximation formula for calculating changes to producer and consumer economic surplus were used for the study.

Source of Information: Annual Research Report 2001, Agricultural Economics Division, BARI, Gazipur

Article Link (Online Journal):

Funding Source:

1.

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Tasakisan Radish was the first popular variety released in 1986 followed by Pinki in 1996 and Druiti in 1998. Tasakisan radish occupied 30 percent of the areas sown to radish in 1998. Adoption of Pinki was only 3 percent in this time. IRR was estimated to be 19 percent for the radish research and extension. Thus, on average, each Taka invested, returns came 19 paisa per year from the time it was invested until the year 2007-2008. The BCR was found 3.03. The IRR was found 19 percent. This return on investments in research and extension is a good rate of return. The analysis also includes the benefits over the local varieties. The benefit cost ratio was found 3.03. It also indicated higher return to the investment.

Knowledge Management: Report/Proceedings