eprintid: 10102
rev_number: 10
eprint_status: archive
userid: 1305
dir: disk0/00/01/01/02
datestamp: 2017-07-21 08:36:49
lastmod: 2017-07-21 08:36:49
status_changed: 2017-07-21 08:36:49
type: article
metadata_visibility: show
contact_email: Library-ICRISAT@CGIAR.ORG
creators_name: Ravikumara, B M
creators_name: Naik, M K
creators_name: Sharma, M
creators_name: Sunkad, G
creators_name: Patil, A G
creators_name: Muniswamy, S
creators_name: Viswanath, K P
icrisatcreators_name: Ravikumara, B M
icrisatcreators_name: Sharma, M
affiliation: ICRISAT (Patancheru)
affiliation: Department of Plant Pathology, University of Agricultural Sciences (Raichur)
affiliation: Department of Genetics and Plant Breeding, University of Agricultural Sciences (Raichur)
country: India
title: Induced Systemic Resistance and Evaluation of Bio-control Agents for Management of Pigeonpea Wilt Caused by Fusarium udum
ispublished: pub
subjects: s1.2
subjects: s35
divisions: CRPS2
full_text_status: restricted
keywords: Pigeonpea; Fungicide; Biocontrol; Induced systemic resistance; Fusarium udum; Pseudomonas; Trichoderma; PGPR
abstract: The performance of the four fungal and two bacterial bioagents were evaluated for the bicontrol efficacy and ability to induce systemic resistance against Fusarium udum causing wilt of pigeonpea which is posing a serious threat to pigeonpea growing regions of India. Among the six isolates, maximum mycelial inhibition was noticed in Trichoderma harzianum (Th- R) as compared to other biocontrol agents. Among contact fungicides, maximum inhibition (> 75 %) of mycelium was recorded in Mancozeb and capton at 0.20 and 0.3 % concentrations. More than 90% inhibition was recorded among the systemic fungicides at all the all the concentrations except thiophanate methyl which recorded 53.67 % inhibition at 0.05 % concentration. Among different treatment combinations of biocontrol agents, the highest vigour index was recorded in P. fluorescense (RP- 46) + P. putida (RP- 56) treated seeds in both the cultivars (Moderately resistant and susceptible). The level of expression of defense related enzymes (PO, PPO & PAL) was more in moderately resistant cultivar(BSMR- 736) rather than susceptible one(ICP- 2376). In glass house experiment seeds treated with P. flourescens (RP- 46) + P. putida (RP-56) recorded least wilt incidence as compared to other treatments. In both Kharif seasons of 2013/14 and 2014/15 recorded significantly lowest wilt incidence and highest yield in soil drenching with 0.2 % Carbendazim fungicide. Among the biocontrol agents, seed treatment @4 g / kg seeds + soil application of PGPR (P. flourescens & P. putida) consortium @ 25kg/ ha in FYM @ 50 kg/ ha, recorded least wilt incidence and highest yield.
date: 2017-03
date_type: published
publication: Journal of Pure and Applied Microbiology
volume: 11
number: 1
pagerange: 291-305
refereed: TRUE
issn: 0973-7510
official_url: http://microbiologyjournal.org/jmabsread.php?snoid=3516&month=Mar&year=2017
citation:   Ravikumara, B M and Naik, M K and Sharma, M and Sunkad, G and Patil, A G and Muniswamy, S and Viswanath, K P  (2017) Induced Systemic Resistance and Evaluation of Bio-control Agents for Management of Pigeonpea Wilt Caused by Fusarium udum.  Journal of Pure and Applied Microbiology, 11 (1).  pp. 291-305.  ISSN 0973-7510     
document_url: http://oar.icrisat.org/10102/1/2017%20Ravi%20et%20al.pdf