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Evaluation and Selection Of Elite Plant Growth-Promoting Rhizobacteria For Suppression Of Sheath Blight Of Rice Caused By Rhizoctonia Solani In A Detached Leaf Bio-Assay

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http://ijabpt.com/Details.aspx?id=264
 
Title Evaluation and Selection Of Elite Plant Growth-Promoting Rhizobacteria For Suppression Of Sheath Blight Of Rice Caused By Rhizoctonia Solani In A Detached Leaf Bio-Assay
 
Creator Kumar, K V K
Reddy, M S
Yellareddygari, S K
Kloepper, J W
Lawrence, K S
Zhou, X G
Sudini, H
Miller, M E
 
Subject Agriculture-Farming, Production, Technology, Economics
 
Description Sheath blight (ShB) of rice, caused by Rhizoctonia solani, is one of the most important rice
diseases worldwide. The objective of this study was to screen selected plant growth-promoting
rhizobacteria (PGPR) strains for suppression of ShB under controlled conditions. Sclerotia of R. solani
were produced on PDA and immature sclerotia (< 5-day-old) were harvested. Leaves of 60-day-old rice
plants grown under greenhouse conditions were used to screen PGPR strains by detached leaf assay. Leaf
sections of 8 cm in length were cut and placed in Petri dishes, inoculated with immature sclerotia, and
incubated in a growth chamber. Approximately 70 PGPR strains were screened. The disease was
quantified by the Relative Lesion Height (RLH) method. Among 70 strains, 31 significantly suppressed
the RLH of ShB lesions compared to the control. Among these, Bacillus subtilis strain MBI 600 resulted
in greatest suppression of ShB disease severity under the conditions tested
 
Publisher International Journal of Applied Biology and Pharmaceutical Technology
 
Date 2011
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/5237/1/IJABPT_2_1_488-495_2011.pdf
Kumar, K V K and Reddy, M S and Yellareddygari, S K and Kloepper, J W and Lawrence, K S and Zhou, X G and Sudini, H and Miller, M E (2011) Evaluation and Selection Of Elite Plant Growth-Promoting Rhizobacteria For Suppression Of Sheath Blight Of Rice Caused By Rhizoctonia Solani In A Detached Leaf Bio-Assay. International Journal of Applied Biology and Pharmaceutical Technology, 2 (1). pp. 488-495. ISSN 0976-4550