Potential of Trichoderma Spp. as Biocontrol Agents against Pathogens Causing Maydis Leaf Blight of Maize

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Authors

  • Sanjeev Kumar
     Department of Plant Pathology, Rajendra Agricultural University, Dholi Campus, Muzaffarpur 843121, Bihar ,IN
  • Archana Rani
     Department of Genetics and Molecular Biology, Rajendra Agricultural University, Dholi Campus, Muzaffarpur 843121, Bihar ,IN
  • M. M. Jha
     Department of Plant Pathology, Rajendra Agricultural University, Dholi Campus, Muzaffarpur 843121, Bihar ,IN

DOI:

https://doi.org/10.18311/jbc/2009/3623

Keywords:

Antagonism, Helminthosporium maydis, Trichoderma, Zea mays.

Abstract

Efficacy of bioagents against Helminthosporium maydis was studied in vitro and under field condition at Trihut college of Agriculture, Dholi (Muzaffarpur) in 2005 and 2006. Among the three native antagonist isolates of Trichoderma viride. Trichoderma harzianum and T. virens screened, T. viride inhibited the radial growth of H. maydis to an extent of 60.7% followed by T. harzianum (55.1%) and T. virens (52.6%). Studies on hyphal interaction between antagonists and test fungus revealed disorganization of protoplasmic content and lysis of host hyphae. Soil application of bioagents was more effective in protecting the crop than foliar spray. Soil application of T. viride resulted in minimum disease intensity (2.6) followed by T. harzianum (2.8) and T. virens (3.0). Soil application of T viride also gave maximum yield (18.6q ha-1) followed by T. harzianum (17.7q ha-1) and T. virens (17.3q ha-1), respectively. These results suggest the need to augment soil application of Trichoderma for obtaining effective management of maydis leaf blight.

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Published

2009-04-13

How to Cite

Kumar, S., Rani, A., & Jha, M. M. (2009). Potential of <I>Trichoderma</I> Spp. as Biocontrol Agents against Pathogens Causing Maydis Leaf Blight of Maize. Journal of Biological Control, 23(1), 89–91. https://doi.org/10.18311/jbc/2009/3623

Issue

Volume 23, Issue 1, March 2009

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