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Selection of Mungbean Variety for Rice-wheat-fallow Cropping System -a Participatory Research and Development (pr&d) Approach

M. N. BARI
Department of Agronomy, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur-1706, Bangladesh

M. R. ISLAM*
Department of Agronomy, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur-1706, Bangladesh

Abstract/ Executive Summary:

The study was conducted at three villages under Birganj upazilla of Dinajpur district to select suitable mungbean genotype to fit in the rice-wheat-fallow cropping system. Nine advanced mungbean genotypes and a check variety were tested in the farmers’ fields through mother and baby trials managed by the farmers themselves. The mother trials were laid down in a radomized completely block design with three replications. Based on farmers’ judgment regarding field performances and post-harvest evaluation on growth, field duration, seed yield, taste, cooking and milling quality, VC3960-88 appeared as the most preferred genotype. Farmers also preferred VC6153B-20P next to the above genotype. The baby trials conducted in thirty farmers’ field reaffirmed that VC3960-88 was also the most preferred genotype. The performance of genotypes in baby trials and subsequent preference of the farmers signified the role of mother-baby trial approach towards selecting mungbean genotype by themselves.

Keywords: Variety, Mungbean, Selection, Cropping system, PR & D approach.

Location: Three villages under Birganj upazila of Dinajpur district.

Start Date: 00-04-2005

End Date: 00-07-2005

Program Area: Farming System

Non-commodity: Performance

Objectives:

this study aims to select suitable mungbean variety(s) for the rice-wheat-fallow cropping system with the contribution of participatory research and development (PR & D) approach through PVS employing mother and baby trials with a view to increase system productivity by including food legumes in the cereal-based cropping systems in the north-western region of Bangladesh.

Methodology:

The study was carried out during April to July 2005 at three villages under Birganj upazila of Dinajpur district. Birgonj, comprising an area of 413 km² , is located at 25º48´ to 26º04´N latitude and 88º26´ to 88º40´E longitude. The study was conducted in the farmers' fields, organized and managed by the farmers themselves. Researchers shared the scientific information and facilitated farmers to experiment with advanced mungbean genotypes generated from the formal research system. Participatory assessment and diagnosis for farmers' situation: A participatory approach to diagnosis and assessment was adopted to facilitate farmers to provide necessary information through the use of various participatory rural appraisal (PRA) methods and tools. A preliminary discussion was held with the different stakeholders including local leaders, union council representatives, leading farmers, and personnel from the Department of Agricultural Extension (DAE) to conduct the study smoothly. Thereafter, the leading farmers organized a focus group discussion (FGD) where the role of different participants and stakeholders was thoroughly discussed. Farmers made a social map of the villages where they located the trial plots. Farmers also prepared a seasonal activity calendar that included farmers’ usual practices of cultivating crops in different growing seasons. Farmers' experimentation through mother-baby trials: The study was commenced through mother and baby trials by incorporating mungbean genotypes. Mother trial (MT) was conducted in three farmers' fields previously selected in FGD. Participating farmers in MT did the layout of the experiment and performed all the crop management practices as per their own choice and the researchers facilitated to carry out all the activities. Unit plot size for MT was 4×3m. Ten mungbean genotypes viz. GK7, GK65, VC6173A, VC3960-88, VC6153B- 20G, VC6153B-20P, IPK2558-97, ML267, ML613, and BUmug2 (check variety) were the treatment variables that were included in a randomized complete block design with three replications. Each MT plot was considered as single replicate. The farmers were provided with seeds, fertilizers and other logistic supports. Seeds of the genotypes were sown on 7 April 2005. The crop was fertilized as per national recommendation for the study area (BARC, 1997). Baby trial (BT) for each genotype was carried out in thirty farmers’ fields across the villages with 3 replications. Baby trial plot size was approximately 50m² and seeds were sown during 7-9 April 2005. Farmers assigned for baby trial grew mungbean through their own management practices. Participatory monitoring and evaluation Participatory monitoring and evaluation involved joint monitoring and evaluation by the farmers, researchers and extension personnel. Farmers played the key and decisive role in assessing genotypic performance of mungbean during monitoring and evaluation by using their own observations, criteria and perceptions. For BT, farmers made their own assessment but their feedback was recorded by the researchers. The first joint follow-up visit was done at vegetative growth stage to evaluate the crop growth pattern. The second joint follow-up visit was done at maturity stage to identify preferred crop characters using matrix ranking. For each plant character, ten seeds were allotted for each genotype at a time and farmers were asked to put a set number of seeds they judged that genotype qualifies for that particular character and then moved to the second genotype for the same character. Farmers observed and evaluated the genotypes as per criteria outlined by them during the first FGD. At the same time, the BT farmers were also interviewed by using a household level questionnaire (HLQ).

Source of Information: J Agric Rural Dev 7(1&2), 33-40, June 2009 ISSN 1810-1860

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Based on the data and findings of the present study, the following concluding remarks could be made: ? Farmers successfully experimented with the mungbean genotypes through participatory manner where they were able to select mungbean genotypes to suit their needs. ? Majority of the mungbean genotypes were found to fit well in the existing rice-wheat-fallow cropping systems. ? Mungbean genotype VC3960-88 appeared as the most preferred variety due to its shorter duration, higher yield, uniform seed size, and better taste, cooking and milling quality. ? Farmers also showed interest on long duration genotype ML613 for its high yield potential. However, they also expressed concern regarding its long field duration which could be prone to monsoon rain at maturity stage. ? Considerable awareness as well as enthusiasm has been created among the farmers of the study area as well as neighboring areas regarding the easy cultivation process of mungbean and its easy adjustment in the fallow period after the harvest of wheat. ? Satisfactory performance of the mungbean genotypes has also created interest among the DAE personnel since they failed to popularize this crop in the region after repeated failure of formal demonstration trials.

Knowledge Management: Journal