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Articles by Shahidul Alam
Total Records ( 3 ) for Shahidul Alam
  Shahidul Alam , M. Sabina Banu , M. Forman Ali , Nargis Akhter , M. Rafiqul Islam and M. S. Alam
  Six fungicides viz., cupravit, thiovit, dithane M-45, bavistin, rovral and suncozeb were tested against C. gloeosporioides. Dithane M-45, rovral, thiovit and suncozeb were the most effective ones. Cupravit and bavistin were less effective in the inhibition of conidial germination. Ten plant-extracts considered as fungicides were tested, out of which Tagetes erecta leaf and Azadirachta indica bark extracts were the most effective in inhibiting Colletotrichum gloeosporioides after 5-30 minutes of immersion and in 5:1.25 (w/v) concentration. The phytohormone IAA had great effect against the inhibition (100%) of C. gloeosporioides at 0.005 to 0.006% concentration for an immersion after 5-30 minutes. Rest of the hormones also had good effects against C. gloeosporioides.
  Shahidul Alam , Nargis Akhter , Most. Ferdousi Begum , M. Sabina Banu , M. Rafiqul Islam , Arfatun Nahar Chowdhury and M. S. Alam
  Inhibition of spore/conidial germination of four fungi viz., Bipolaris sorokiniana, Fusarium oxysporum f. sp. vasinfectum, Rhizopus artocarpi and Botryodiplodia theobromae was tested using the extracts of different parts of Vinca rosea and Azadirachta indica and smoke of rice straw, wheat straw, tobacco leaf and "dhup" (incense) and showed good results in their inhibition. Vinca rosea root extract inhibited 100% spore germination of Bipolaris sorokiniana and Rhizopus artocarpi when it was immersed from 5-30 minutes at 5:1.25 (w/v) concentration. A. indica (leaf, root and seed) extracts showed good (100%) inhibition results on B. sorokiniana, and R. artocarpi. Smoke of rice straw, wheat straw, tobacco leaf and ?dhup? had a great antifungal effect against these fungi.
  Md. Yeamin Reza , Md. Belayet Hossain , M. Saidul Islam and Shahidul Alam
  Mixed-ligand transition metal complexes of Co(II) ions were synthesized, where, Malonic acid as a primary ligands and heterocyclic amine bases as a secondary ligands have been used, respectively. Moreover, mixed ligands transition metal complexes of Fe (III) ions were also synthesized by the same way. Their conventional physical and chemical analysis had been done. Their anti-bacterial and anti-fungal activity had been evaluated. Disc diffusion methods were employed for anti-microbial assays against fourteen pathogenic bacteria (five gram positive and nine gram negative) and fourteen fungi. The complexes containing 8-hyroxy-quinonline as secondary ligand were much more microbial activity than the other complexes. In addition, the complexes K[Co(II)(MO)(8-HQ)] shows the highest anti bacterial activity against all bacterial tasted (when, MO = C3H2O4 and 8-HQ = (C9H6NO).
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