Indian Journal of Plant Physiology

  • Year: 2009
  • Volume: 14
  • Issue: 2

Physiological evaluation of Trichoderma harzianum against sheath blight in rice

  • Author:
  • Rajeev Nayan Bahuguna1, M. Pandey2, M. Nath2, S.K. Guru1, J. Kumar, Alok Shukla1,
  • Total Page Count: 4
  • DOI:
  • Page Number: 205 to 208

1 Department of Plant Physiology, College of Basic Science & Humanities, G.B. Pant University of Agriculture & Technology, Pantnagar, Uttarakhand-263 145.

2 Department of Molecular Biology & Biotechnology, College of Basic Science & Humanities, G.B. Pant University of Agriculture & Technology, Pantnagar, Uttarakhand-263 145.

Abstract

Trichoderma harzianum (LS: TH38) induced systemic resistance in rice (Oryza sativa) by enhancing various components involved in pathogen suppression. Different physiological processes that are related with growth promotion were positively induced by T. harzianum even under infection by sheath blight. Thus reduction in disease severity and nullifying its negative impact on the plant growth implicates the importance of T. harzianum as a biocontrol agent. However, comparative study with systemic fungicide bavistin showed that the efficacy level of T. harzianum against sheath blight disease needed further improvement in order to replace chemical fungicides.

Keywords

Bavistin, physiological processes, sheath blight, systemic resistance, Trichoderma harzianum