Record Details

Combined application of Pseudomonas fluorescens and Trichoderma viride has an improved biocontrol activity against stem rot in groundnut

OAR@ICRISAT

View Archive Info
 
 
Field Value
 
Relation http://oar.icrisat.org/3808/
 
Title Combined application of Pseudomonas fluorescens and Trichoderma viride has an improved biocontrol activity against stem rot in groundnut
 
Creator Manjula, K
Kishore, G K
Girish, A G
Singh, S D
 
Subject Groundnut
 
Description In an attempt to develop effective biocontrol system for management of stem rot disease in groundnut, 57 bacterial isolates and 13 isolates of Trichoderma spp. Were evaluated for their antagonistic activity against Sclerotium rolfsii. The antagonists were selected based on their ability to inhibit the external growth of S. rolfsii from infected groundnut seeds. Four isolates of Pseudomonas fluorescens, GB 4, GB 8, GB 10 and GB 27, and T. viride pq 1 were identified as potent antagonists of S. rolfsii. T. viride pq 1 produced extra cellular chitinase and parasitized the mycelium of S. rolfsii. Under controlled environment conditions, P. fluorescens GB 10, GB 27, T. viride pq 1 and the systemic fungicide Thiram reduce the mortality of S. Rolfsii inoculated to groundnut seedlings by 58.0%, 55.9%, 70.0% and 25.9%, respectively compared to control. In vitro growth of P.fluorescens GB 10 and GB 27 was compatible with T. Viride pq 1 and Thiram Integrated use of these two bacterial isolates with T. viride pq 1 or Thiram improved their biocontrol efficacy. Combined application of either GB 10 or GB 27 with T. viride pq 1 was significantly effective than that with Thiram in protecting groundnut seedlings form stem rot infection
 
Publisher Korean Journal of Plant Pathology
 
Date 2004
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/3808/1/PlantPatholJ_20_1_75-80_2004.pdf
Manjula, K and Kishore, G K and Girish, A G and Singh, S D (2004) Combined application of Pseudomonas fluorescens and Trichoderma viride has an improved biocontrol activity against stem rot in groundnut. Plant Pathology Journal , 20 (1). pp. 75-80. ISSN 1598-2254