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Development and Release of BRRI Dhan41 for Saline Prone Environments of Bangladesh in Transplant Aman Season

Dr. Md. Abdus Salam
Chief scientific Officer
Plant Breeding Division Bangladesh Rice Research Institute Gazipur

Abstract/ Executive Summary:

This study was conducted at BRRI Gazipur in T. Aman season. The aim of this study was to develop and release of high yield potential rice variety for saline prone environments of Bangladesh in transplant Aman season. National Seed Board of Bangladesh has approved the recommendation of technical committee to release the proposed line BR5828-11-1-4 as BRRI dhan41 for T. Aman season in 2003. Plant height of the variety is 115 cm with 148 days growth duration. Average yield is about 4.5 t/ha and grain size is medium slender.

Keywords: T. Aman, BRRI dhan41, Salinity Tolerance

Location: BRRI, Gazipur

Start Date: 00-00-1990

End Date: 00-00-2003

Program Area: Variety and Species

Commodity: Rice

Objectives:

To develop high yield potential and cultivation of saline prone environments (salinity 8-10 ds/m at seedling reproductive stage) of Bangladesh for T. Aman season

Methodology:

This study was conducted at BRRI Gazipur in T. Aman season. This variety was developed through hybridization. It is BR line with pedigree BR5828-11-1-4 (BR23/BR1185-2B-16-1). After fixation of the genotype, several experiments i. e. Observational Trial (OT), Preliminary Yield Trial (PYT), Secondary Yield Trial (SYT) and Regional Yield Trials (SYT) were conducted under on-farm and on-stations. Advanced Line Adaptive Research Trial (ALART) was conducted to evaluate of promising breeding lines for their adaptability in different agro-ecological conditions for releasing as variety (s). Finally the Proposed Variety Trial (PVT) was done for On-farm evaluation of proposed line by the NSB team for the recommendation of release as a new variety. The field evaluation team of the National Seed Board (NSB) compared the performance of this genotype with that of BR11. The NSB has approved to release the proposed line BR5828-11-1-4 as variety.

Source of Information: Proceedings of the BRRI Annual internal Review for 2002-2003

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The variety BRRI dhan41 is recommended for cultivation of saline prone areas of Bangladesh in T. Aman season.

Knowledge Management: Report/Proceedings