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Varietal Release Pattern and Variety Specific Adoption in Bangladesh: an Application to New Approach of Adoption Study

MAB Siddique
PSO
Head, Agricultural Economics Division, BRRI, Gazipur

MA Sallam
SO
Agricultural Economics Division, BRRI, Gazipur

MA Islam
SO
Agricultural Economics Division, BRRI, Gazipur

Abstract/ Executive Summary:

Bangladesh has made remarkable progress in achieving rice self-sufficiency through adoption of modern rice varieties. . Increased yield and production was possible through widespread adoption of MVs. However, rice yields seem to have reached its peak with yield level at 4.00 in 2013 (AED, 2013) and despite availability of newer MVs, old generation MVs prevail. Hence, there is a need to know what is happening to varietal changes as a result of genetic improvement. The main objective of the study is to develop and test alternative methods of measuring varietal adoption which could be use regularly to monitoring varietal changes. The expert opinion method was tested in the study as an alternative to the conventional method of using household survey in obtaining estimates of varietal adoption. Expert estimates were validated using household and community surveys. A researchers’ survey was also conducted to collect information on rice scientists’ time allocation in rice varietal improvement. Data from 522 household farmers were collected from three districts following multistage sampling technique. Rice varietal development remains to be skewed in favor of Aman season as 46 percent of MVs released up to 2010 were Aman. High-yielding, good eating quality, short duration, insect/disease resistance, high milling recovery and high grain weight, etc were the major traits in selecting the rice varieties. Both community survey and focus group discussions were cost-effective alternatives of traditional household survey in obtaining estimation of varietal adoption/replacement pattern. Expert opinion survey was cost- efficient, time saving and also congruent with the household survey method.

Keywords: Varietal release pattern, Variety adoption, Variety upscaling

Location: Mymensingh, Rajshahi, Gazipur,Kurigram and Satkhira

Start Date: 01-07-2012

End Date: 30-06-2013

Program Area: Socio-economic and Policy

Non-commodity: Adoption of technology

Objectives:

To develop and test alternative methods of measuring varietal adoption and
To up-date existing information on varietal releases, assessing rice research investment ,analyzing varietal releases and adoption patterns

Methodology:

The expert opinion method was tested in the study as an alternative to the conventional method of using household survey in obtaining estimates of varietal adoption. Expert estimates were validated using household and community surveys. A researchers’ survey was also conducted to collect information on rice scientists’ time allocation in rice varietal improvement. The expert consists of plant breeder, agronomist, pathologist, economist, extension personnel and local seed dealers and progressive farmers. Data from 522 household farmers were collected from three districts following multistage sampling technique.For comparison between expert estimates and household survey estimates, the top 10 MVs based on area coverage were considered. For counter checking of household survey estimates using community survey the top 20 MVs based on area coverage were considered in the calculation of the measures of correspondence

Source of Information: Proceedings of the BRRI Annual Internal Review for 2012-13

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Rice varietal development remains to be skewed in favor of Aman season as 46 percent of MVs released up to 2010 were Aman. High-yielding, good eating quality, short duration, insect/disease resistance, high milling recovery and high grain weight, etc were the major traits in selecting the rice varieties. Both community survey and focus group discussions were cost-effective alternatives of traditional household survey in obtaining estimation of varietal adoption/replacement pattern. Expert opinion survey was cost- efficient, time saving and also congruent with the household survey method.

Knowledge Management: Report/Proceedings