<i>In vitro</i> evaluation of fungicidal responses on the growth of pathogenic <i>Rhizoctonia solani</i> Kuhn, antagonistic binucleate <i>Rhizoctonia</i> and <i>Trichoderma harzianum</i> Rifai

Authors

  • Md Maniruzzaman Khandaker Department of Botany, Government Saadat College, Tangail
  • Md Khurshed Alam Bhuiyan Department of Plant Pathology, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur
  • Abul Khair Department of Botany, Jahangirnagar University, Savar, Dhaka

DOI:

https://doi.org/10.3329/bjb.v39i1.5534

Keywords:

Rhizoctonia solani, Binucleate, Trichoderma harzianum, Fungicide

Abstract

Two pathogenic isolates of Rhizoctonia solani Kuhn causing stem canker/black scurf disease of potato plants and four antagonist isolates, two of binucleate Rhizoctonia and two of Trichoderma harzianum Rifai were isolated from crop fields and evaluated in vitro for their fungicidal responses against eight fungicides. Vitavax was effective in inhibiting the growth of R. solani and binucleate Rhizoctonia but it did not inhibit the growth of T. harzianum at 100 ppm concentration. Terraclor Super X, Dithane M 45 and Boric acid are the fungicides which at 100 ppm concentration did not inhibit the growth of antagonist isolates of T. harzianum and binucleate Rhizoctonia but inhibited the growth of isolates of R. solani to some extent. The in vitro findings suggest that any one of these three fungicides along with antagonist isolates of binucleate Rhizoctonia and T. harzianum can be used as biocontrol agents to reduce soil borne inocula of R. solani.

Key words: Rhizoctonia solani; Binucleate; Trichoderma harzianum; Fungicide

DOI: 10.3329/bjb.v39i1.5534

Bangladesh J. Bot. 39(1): 107-110, 2010 (June)

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How to Cite

Khandaker, M. M., Bhuiyan, M. K. A., & Khair, A. (2010). <i>In vitro</i> evaluation of fungicidal responses on the growth of pathogenic <i>Rhizoctonia solani</i> Kuhn, antagonistic binucleate <i>Rhizoctonia</i> and <i>Trichoderma harzianum</i> Rifai. Bangladesh Journal of Botany, 39(1), 107–110. https://doi.org/10.3329/bjb.v39i1.5534

Issue

Vol. 39 No. 1 (2010)

Section

Short Communications

License

© Bangladesh Botanical Society

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