Development of seed coating formulation using consortium of Bacillus subtilis OTPB1 and Trichoderma harzianum OTPB3 for plant growth promotion and induction of systemic resistance in field and horticultural crops


Abstract views: 514 / PDF downloads: 829

Authors

  • S.P. MOHAN KUMAR, P. CHOWDAPPA* and V. KRISHNA

Keywords:

Trichoderma harzianum, Bacillus subtilis, growth promotion, induced systemic resistance, microbial consortium

Abstract

An experiment was conducted to develop seed-coating formulation using microbial consortium of Bacillus subtilis OTPB1 and Trichoderma harzianum OTPB3. Tomato (Lycopersicon esculentum Mill.) cv. Arka vikas was used as the model crop to study the efficacy of formulation on growth promotion and induction of systemic resistance. The microbial consortium led to a significant increase (p < 0.01) in all growth parameters of tomato seedlings compared to stand alone treatments of B. subtilis OTPB1 and T. harzianum (OTPB3) and the control. Defence related enzymes such as polyphenol oxidase, peroxidase, and superoxide dismutase activities were significantly (P<0.01) higher by 56.7, 69.7 and 55.5%, respectively in tomato seedlings treated with formulation compared to other treatments and the control. The lesion size caused by Alternaria solani and Phytophthora infestans on intact tomato leaves were significantly reduced by 78.7 and 82.1%, respectively in microbial consortium formulation treated seedlings. When microbial consortium formulation evaluated against vegetable crops (brinjal, beans, bitter gourd, bottle gourd, cabbage, chilli, carrot, cauliflower, pumpkin, ridged gourd), fruit crop (papaya in plastic trays in glasshouse), tuber crops (potato), ginger and turmeric, significant increase in growth parameters under greenhouse conditions and growth and yield parameters under field conditions were recorded. This study, therefore, assumes significance in production of disease-free quality vegetable transplants and enhancement of yield in potato, ginger and turmeric crops.

Downloads

Issue

Vol. 68 No. 1 (2015): Indian Phytopathology

Section

Research Articles

License

For Authors

As soon as an article is accepted for publication, authors are requested to assign copyright of the article (or to grant exclusive publication and dissemination rights) to the publisher (Indian Phytopathlogical Society). This will ensure the widest possible protection and dissemination of information.

For Readers

While the advice and information in this journal is believed to be true and accurate at the date of its publication, the authors, the editors, nor the publisher can accept any legal responsibility for any errors or omissions that may have been made. The publisher makes no warranty, express or implied, with respect to the material contained herein.

All articles published in this journal are protected by copyright, which covers the exclusive rights to reproduce and distribute the article (e.g., as offprints), as well as all translation rights. No material published in this journal may be reproduced photographically or stored on microfilm, in electronic data bases, on video disks, etc., without first obtaining written permission from the publisher. The use of general descriptive names, trade names, trademarks, etc. in this publication, even if not specifically identified, implies that these names are protected by the relevant laws and regulations.

How to Cite

and V. KRISHNA, S. M. K. P. C. (2015). Development of seed coating formulation using consortium of Bacillus subtilis OTPB1 and Trichoderma harzianum OTPB3 for plant growth promotion and induction of systemic resistance in field and horticultural crops. Indian Phytopathology, 68(1), 25-31. https://epubs.icar.org.in/index.php/IPPJ/article/view/46967