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Research Detail

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Dr. Md. Khalequzzaman
SSO
Genetic Resources And Seed Division,BRRI, Gazipur

Allelopathic is a biological characteristic of a plant which may suppressed the growth of other species. Objective of this study was to evaluate the genotypes for weed suppression ability. Twenty seeds of each accession were sown on filter paper in petridish. Seven days after sowing, 10 germinated weed seeds were placed in each petridish by placing in between two rice seedlings. Out of 160 screened germplasm 16 accessions were found with moderate allelopathic character.

  Rice, Gramplasm, Screening, Weed, Allelopathic character.
  GRS Division, BRRI
  01-07-2004
  30-06-2005
  Variety and Species
  Rice

To evaluate the genotypes for weed suppression ability.

A total of 200 germplasm were supplied to Agronomy Division for screening. Twenty seeds of each accession were sown on filter paper in petridish. Germinated seeds were counted 3 days after sowing and thinning was done by keeping 10 uniform seedlings in each petridish. Seven days after sowing, 10 germinated weed seeds were placed in each petridish by placing in between two rice seedlings. For control treatment, 20 weed seeds were sown in a petridish. Available moisture was maintained with distilled water. After 17 days of sowing rice and weed seedling were separated and their root, length and shoot dry matter were measured.

  BRRI. Proceedings of the BRRI Annual Internal Review for 2004-2005. Bangladesh Rice Research Institute (BRRI). Gazipur -1701.
  
Funding Source:
1.  Government Budget:  
  

Out of 160 screened germplasm 16 accessions were found with moderate allelopathic character.

  Report/Proceedings
  

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