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Comparison of three testing methods for evaluation of resistance to red rot caused by Colletotrichum falcatum in sugarcane (Saccharum officinarum)

Indian Agricultural Research Journals

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Title Comparison of three testing methods for evaluation of resistance to red rot caused by Colletotrichum falcatum in sugarcane (Saccharum officinarum)
 
Creator VISWANATHAN, R
MOHANRAJ, D
PADMANABAN, R
 
Subject Sugarcane, red-rot disease, resistance, plug method, nodal method, controlled condition testing, Collectrotriehum faleatum, Saccharum officinarum
 
Description Red rot, caused by Colletotrichum falcatum Went is one of the major diseases of sugarcane (Saccharum officinarumL.) affecting cane stalks. Sugarcane genotypes are tested using both plug and nodal evaluation methods for resistanceagainst red-rot pathogen, before varietal release. These recommended testing methods were compared with the newlydeveloped controlled condition testing procedure. Red-rot was evaluated during 1992-93, 1993-94 and 1994-95 seasonsunder field conditions and controlled condition testing. Disease ratings of the pre-zonal varietal trial clones by 3different testing procedures showed that the controlled conditions testing had high correlation with plug method comparedwith the nodal method of evaluation in the field. Testing by controlled condition testing gave more reliableresults than field nodal method and many disease escapes noticed in the latter were identified. Plug method of evaluationalso showed less correlation with nodal method. Controlled condition testing was found less injurious and evaluationcould be done in a more natural way. Among the 3 methods controlled condition testing was suitable to indentifyfield tolerant clones with more reliability in a short time.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2013-02-21
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/27480
 
Source The Indian Journal of Agricultural Sciences; Vol 68, No 4 (1998)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/27480/12478
 
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