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Physiological investigation of Rice land races in a low Temperature area of Bangladesh

Author Affiliations

  • 1Soil Resource Development Institute, Ministry of Agriculture, Dhaka, BANGLADESH
  • 2Department of Agricultural Chemistry, Hajee Mohammad Danesh Science and Technology University, Dinajpur-5200, BANGLADESH
  • 3Soil Resource Development Institute, Ministry of Agriculture, Dhaka, BANGLADESH
  • 4Soil Resource Development Institute, Ministry of Agriculture, Dhaka, BANGLADESH
  • 5Department of Agricultural Chemistry, Hajee Mohammad Danesh Science and Technology University, Dinajpur-5200, BANGLADESH
  • 6Soil Resource Development Institute, Ministry of Agriculture, Dhaka, BANGLADESH

Res. J. Agriculture & Forestry Sci., Volume 3, Issue (7), Pages 1-6, July,8 (2015)

Abstract

An experiment was conducted to assess physiological characteristics for screen out yield potentiality and grain quality of nine rice land races produced in different low temperature area in Bangladesh. The races were Bashful, Posursail, Gochi, Taipi, Pariza, Lafaya, Jirashail, BRRIdhan28 and Banglamoti. Leaves of nine cultivars were used to estimate proline content. Moisture and some minerals such as Fe, Zn, and Ca contents were determined from the grains. Grain characters i.e. grain shape, size; length, breath and length/breath were also measured for screening out the popular rice cultivar(s). Low level of temperature tolerance was observed for most cultivarsat growth stages; exceptions being some varieties of Posursail from Hobigonj, Pariza and Jirashail, which were tolerant or moderately tolerant, to low temperature due to accumulation of higher amounts of proline. Lafaya and BRRI dhan 28 performed very poorly at low temperature. Cultivars from Hobigonj (Posursail) and Joypurhat (Pariza) found to be tolerant of low temperature consistently during entire growth and development. These varieties could be important gene donors for breeding and genetic studies. However, Posursail, Taipi and Lafayaa was found having lowest starch; Bashful, Pariza, Lafayaa and Posursail found higher quantity of protein which is important for selecting cultivar for quality. No single cultivar was found containing all characters of yield potential and assured grains quality. But Posursail is considered a potential rice land race for growing in low temperature areas of Bangladesh.

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