Opinion and Suggestion Form

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Some of the identified genotypes by the plant physiology division have already been released as stress-tolerant variety (salinity tolerant mustard BARI Sarisha-19, waterlog tolerant sesame BARI Til-6, and drought tolerant BARI Hybrid Maize-12 and BARI Hybrid Maize-13) from respective crop centers or divisions of BARI. Some of their important features are mentioned below:

 

Selection of Salt Tolerant Rapeseed/Mustard Genotype for Coastal Areas of Bangladesh

Jun-536 (BARI Sarisha-19) was selected as salt tolerant genotype.

Key features of selected genotypes

  • Less uptake of Na+ ion with higher K+/Na+ ratio
  • Produced higher amount of ROS scavenging enzymes like CAT and POD
  • Produce less amount of MDA
  • Less affected in leaf area, photosynthesis, TDM, and seed yield

 

 

Selection of waterlogging Tolerant sesame genotype

Findings

Ses MR-20 (BARI Til-6) can tolerate 72 hours of waterlogging at the vegetative stage.

Key features of tolerant genotypes

  • Less visible of leaf chlorosis
  • Perform the best ranks mean and low standard deviation of ranks in consideration of all indices
  • Survived from waterlogging injury with the higher Pn, Gs, Tr and photosynthetic pigments
  • Less affected in TDM and seed yield production
  • Less accumulation of ROS (H2O2 and O2-), MG, and MDA
  • Maintained higher antioxidants like POD, APX, GPX, ASA, and Proline
  • Higher activity of the ADH and PDC including the lower activity of LHD
  • Formation of aerenchymatous tissues in roots
  • Alcoholic fermentation occurs to provide a source of energy