Biocontrol efficacy of fungal and bacterial antagonists against early blight of tomato caused by Alternaria solani

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Published

2015-03-30

Keywords:

Tomato, Alternaria solani, biocontrol, Trichoderma sp., Pseudomonas fluorescens
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Issue

Vol. 72 No. 01 (2015): Indian Journal of Horticulture

Section

Articles

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Copyright (c) 2015 Indian Journal of Horticulture

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This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

Authors

  • B. Ramanujam ICAR-National Bureau of Agriculturally Important Insects, P.O. Box. 2491. H.A. Farm post, Bellary Road, Hebbal, Bengaluru 560 024, Karnataka
  • S. Sriram ICAR-National Bureau of Agriculturally Important Insects, P.O. Box. 2491. H.A. Farm post, Bellary Road, Hebbal, Bengaluru 560 024, Karnataka
  • R. Rangeshwaran ICAR-National Bureau of Agriculturally Important Insects, P.O. Box. 2491. H.A. Farm post, Bellary Road, Hebbal, Bengaluru 560 024, Karnataka
  • Honnur Basha ICAR-National Bureau of Agriculturally Important Insects, P.O. Box. 2491. H.A. Farm post, Bellary Road, Hebbal, Bengaluru 560 024, Karnataka

Abstract

In the present study, fungal and bacterial antagonists were evaluated against early blight pathogen of tomato, Alternaria solani under in vitro, glasshouse and field conditions. Among the isolates tested, T. harzianum (Th-7) showed significant inhibition of A. solani under in vitro (72.78%) and glasshouse conditions (62.60%). Seedling dip and foliar applications of T. harzianum (Th-7), T. viride (Tv-14) and P. fluorescens (Pf-1) decreased the early blight incidence up to 62% and increased tomato yield up to 37% over control in field trials.

How to Cite

Ramanujam, B., Sriram, S., Rangeshwaran, R., & Basha, H. (2015). Biocontrol efficacy of fungal and bacterial antagonists against early blight of tomato caused by Alternaria solani. Indian Journal of Horticulture, 72(01), 147–148. Retrieved from https://journal.iahs.org.in/index.php/ijh/article/view/1503

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