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Research Detail

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Dr. Md. Tariqul Islam
Principal Scientific Officer and Head,
Crop Physiology Division, Bangladesh Institute of Nuclear Agriculture, BAU Campus, Mymensingh-2202, Bangladesh

Dr. M. M. A. Mondal
Principal Scientific Officer
Crop Physiology Division, Bangladesh Institute of Nuclear Agriculture, BAU Campus, Mymensingh-2202, Bangladesh

Dr. Md. Siddiqure Rahman
Senior Scientific Officer
Crop Physiology Division, Bangladesh Institute of Nuclear Agriculture, BAU Campus, Mymensingh-2202, Bangladesh

A pot experiment was carried out with three mungbean genotypes at BINA, Mymensingh during March to May 2017.  Control (normal growth), 100% leaf cutting, 50% leaf cutting from upper, 50% leaf cutting from base and 2 top leaf cutting  were imposed on Binamoog-7, MB-13 and Binamoog-8 at 25 days after sowing and next emerging leaf remained up to final harvest. The experiment was laid out in a Complete Randomized Design with three replications. Chlorophyll content was found the highest in 100% leaf cutting followed by control, 50% leaf cutting from top and 2 top leaf cutting. The lowest chlorophyll content was found in 50% leaf cutting from lower. The highest chlorophyll was found in MB-13.  Control plants produced the highest seed yield plant-1 due to higher number of pods plant-1, seeds plant-1 and 1000- seed weight followed by 2 top leaf cutting treatment. The lowest seed yield was recorded in 100% leaf cutting. Any degree of leaf defoliation at vegetative stage hampered grain yield.

  Defoliation, Mungbean, Chlorophyll, Yield
  BINA, Mymensingh
  01-03-2017
  31-05-2017
  Variety and Species
  Mungbean

To assess the effects of leaf defoliation at vegetative stage on seed yield of mungbean genotypes

A pot experiment was carried out with three mungbean genotypes at BINA, Mymensingh during March to May 2017. Control (normal growth), 100% leaf cutting, 50% leaf cutting from upper, 50% leaf cutting from base and 2 top leaf cutting  were imposed on Binamoog-7, MB-13 and Binamoog-8 at 25 days after sowing and next emerging leaf remained up to final harvest. The experiment was laid out in a Complete Randomized Design with three replications. Five seeds were sown in plastic pots containing 10 kg soils on 3 March 2017.  Finally three plants were kept in each pot for giving the treatment. Recommended doses of fertilizers were applied and cultural practices were done whenever required. Data on chlorophyll content was taken by SPAD meter at 50 DAS. Data on yield and yield attributes were also recorded at maturity.   

  BINA Annual Report, 2016-17: 69.
  
Funding Source:
1.   Budget:  
  

Any degree of leaf defoliation at vegetative stage hampered grain yield.

  Report/Proceedings
  

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