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Articles by B. Sikdar
Total Records ( 2 ) for B. Sikdar
  B. Sikdar , M. Shafiullah , A.R. Chowdhury , N. Sharmin , S. Nahar and O.I. Joarder
  Multiple shoots from the immature cotyledonary nodes of two genotypes of bitter gourd were induced in MS media with GA3, IAA, IBA, NAA, KIN and BAP. The shoots continued to increase in number for 5-6 weeks. On the medium, BAP 2 mg L-1 in combination with 0.1 mg L-1 IAA + 2 mg L-1 GA3 was the most effective medium for adventitious shoot proliferation from immature cotyledonary node. BGGB1 and BGGB14 genotypes produced over 84 and 80% shoots, respectively on this medium in 6 weeks from the time at inoculation of primary explants. BGGB1 was found to be better in response than BGGB14 in most of the treatments. Rapid and reproducible transformation system for bitter gourd using Agrobacterium tumefaciens mediated gene delivery was developed. Immature cotyledonary node from green immature fruits that has been allowed to imbibe was used as explant and regeneration was achieved. Cotyledonary node was co-cultured in MS media with 2.0 mg L-1 BAP + 0.1 mg L-1 IAA + 2.0 mg L-1 GA3. Histochemical GUS assay of the explants and shoots (newly formed) revealed that they were GUS positive.
  M.E. Haque , M. Rahman , M.A. Rahman , A.K. Roy and B. Sikdar
  Institute of Biological Science, University of Rajshahl, Rajshahi 6205, Bangladesh Department of Genetics and Breeding, University of Rajshahi, Rajshahi 6205, Bangladesh Fruit Research Station, BARI, Binodpur, Rajshahi, Bangladesh. A field experiment on lablab bean based intercropping system was conducted at the Botanical Garden of Rajshahi University during the winter of 1999-2000 and 2000-2001. The experiment was conducted in with sole lablab bean and other crops as like as lettuce and spinach and their intercropping combinations. The yield and yield components of lablab bean were influenced by intercrops and the lablab bean JessoreI/lettuce intercropping in 1:1 ratio gave the highest monetary return and land equivalent ratio (LER) of 2.00. The yield advantage was more in intercropping than all sole cropping systems, except when it was intercropped with spinach.
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