JEB logo

Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP

About Journal
    Editorial Board
    Reviewer Panel
    RnD Division
    Subscription Info
    Contact Journal
 
Read Journal
    Current Issue
    Journal Archives
 
For Authors
    Authoring Guidelines
    Publication Process
    Track Paper Status
 

Search the Journal web-site through Google:


        Abstract - Issue Mar 2013, 34 (2)                                                                                                             Back



nstantaneous and historical temperature effects on a-pinene

Identification of compatible bacterial and fungal isolate and

their effectiveness against plant disease

 

D.S. Mishra1, A. Kumar2*, C.R. Prajapati3, A.K. Singh4?and S.D. Sharma5?

1Bayer Crop Science, Hyderabad -500 008, India

2IARI Regional Station, Pusa, Samastipur ? 848 125, India

3Krishi Vigyan Kendra, Baghpat, S.V.P. University of Agriculture and Technology, Meerut-250 609, India ?

4ICAR Research Complex for Eastern Region, Patna-800 014, India

5IPTM Unit, KAB-1, ICAR, Pusa, New Delhi - 110 012, India

*Corresponding Author email : ashish.pathology@gmail.com

 

 

 

 Publication Data

Paper received:

26 August 2011

 

Revised received:

23 December 2011

 

Accepted:

26 December 2011

 

Abstract

Forty-three isolates of Trichoderma spp. and forty isolates of bacterial (fluorescent pseudomonads) biocontrol agents were isolated and evaluated for their relative biocontrol potential and thereafter development of mixed formulation of efficient compatible fungal and bacterial bio-agents. Different isolates of either Trichoderma or Pseudomonas exhibited differential antagonistic activity with different species of tested pathogens. Pseudomonas in general, suppressed the growth of Trichoderma under in-vitro conditions however, a few combinations were found compatible. Fungal isolate PBAT-43 (T. harzianum) and bacterial isolate PBAP-27 (P. fluorescens) emerged as most compatible and efficient and therefore were used for development of mixed formulation. Individual and mixed formulations were evaluated for their relative bio-efficacy under glass-house and field conditions. Mixed formulation exhibited increase in seed germination ranges from 25.5 - 72.11 % and disease control 47.68- 76.00 % in different crops as compared to control. Application of compatible mixture of fungal and bacterial bio-control agents possessing various mechanism of pathogen suppression is suggested as a reliable and potential means of disease suppression.

?

 

Key words

Biological control, Trichoderma, Pseudomonas, Mixed formulation

 

Copyright ? 2013 Triveni Enterprises. All rights reserved. No part of the Journal can be reproduced in any form without prior permission. Responsibility regarding the authenticity of the data, and the acceptability of the conclusions enforced or derived, rest completely with the author(s).