Participatory Evaluation of ‘BRRI Hybrid Dhanl’ in Faridpur District of Bangladesh

抄録

The hybrid rice, the first of its kind in Bangladesh, had been released in 2001 as ‘BRRI hybrid dhanl’ was evaluated in a participatory approach at the on-station (Bangladesh Rice Research Institute (BRRI), Regional Station, Bhanga, Faridpur, Bangladesh) and on-farm (13 villages of Faridpur district) during Boro 2001-2002. At the on-station, BRRI hybrid dhanl, three imported hybrids and three popular inbred varieties were grown for comparison. At the on-farm, BRRI hybrid dhanl and BRRI dhan29 were grown side by side. The plot size for each variety was 20mx10m for all the locations. Results revealed that at the on-station the BRRI hybrid dhanl took 163 days to mature and the grain yield was 8.2 t/ha while at the on-farm it took 158.1 days and the grain yield was 8.3 t/ha. With BRRI hybrid dhanl, 12.8 and 10.7% increases in productivity were gained over BRRI dhan29 at on-station and the on-farm trials, respectively. At on-station, the highest productivity (50.3 kg/ha/day) was recorded for BRRI hybrid dhanl followed by BRRI dhan29 (44.6 kg/ha/day) and Sonar Bangla (44.5 kg/ha/day). At the on-farm, the increased productivity of BRRI hybrid dhanl over BRRI dhan29 ranged from 2.6-21.5% and the mean was 10.7%. All the visiting and participating farmers expressed their satisfaction with BRRI hybrid dhanl. They held the opinion that the hybrid seed cost should be reasonable, the hybrid variety must fit into their cropping patterns, adopt to the local environment, meet household requirements. The required management practices should also be affordable to them. Thus, the BRRI hybrid dhanl variety adoption rate would be improved by increased farmer participation.