Agricultural Science Digest - A Research Journal
SCOPUS
  • Year: 2017
  • Volume: 37
  • Issue: 3

In vitro evaluation of bio-agents against Pyricularia oryzae (Cav.) causing rice blast disease

  • Author:
  • Akhilesh Kumar Kulmitra, Neha Sahu1, V. B. Sanath Kumar2, A.G Thejesha2, Amlan Ghosh3, Yasmin Gulnaz4
  • Total Page Count: 2
  • Page Number: 247 to 248

1Department of Soil Science and Agricultural Chemistry, Indira Gandhi Krishi Vishwavidyalaya, Raipur, Chhattisgarh, India.

2Department of Plant Pathology, University of Agricultural Sciences, GKVK, Bangalore-560065, India.

3Department of Soil Science and Agricultural Chemistry, University of Agricultural Sciences, GKVK, Bangalore-560065, India.

4Department of Agronomy, University of Agricultural Sciences, GKVK, Bangalore-560065, India.

Department of Plant Pathology, University of Agricultural Sciences, Gandhi Krishi Vignan Kendra, Bangalore-560065, Karnataka, India.

*Corresponding author's e-mail: akhilesh.patho@gmail.com

Online published on 9 October, 2017.

Abstract

The five different bio-agents viz., Trichoderma viride, T. harzianum, T. virens, Pseudomonas fluorescens and Bacillus subtilis were evaluated against Pyricularia oryzae at four and eight days after incubation through dual culture technique. Among the five different bio-agents, highest per cent inhibition of mycelial growth of fungus was recorded in T. virens i.e. 67 per cent and 70 percent after four and eight days after incubation respectively with mean of 68.5 per cent followed by Trichoderma viride with the inhibition of 61 and 63 per cent respectively with mean of 62 per cent. The Pseudomonas fluorescens did not show any inhibition of mycelial growth of P. oryzae as the pathogen over grew the bio-agents.

Keywords

Bio-agents, Dual culture technique, Pyricularia oryzae.