Disease: a constraint to sorghum production in Honduras

Wall, G.C. and Frederiksen, R.A. and Meckenstock, D.H. (1989) Disease: a constraint to sorghum production in Honduras. Technical Report. INTSORMIL.

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Abstract

Surveys during 1983-85 identified 21 diseases on this crop, the 2nd most important in Honduras. Healthy sorghum plantsproduced 50% more grain than plants infected by Acremonium strictum while maize dwarf mosaic potyvirus infection caused a 54% loss. Peronosclerospora sorghi was responsible for 44% yield loss in unprotected plots and Cercospora sorghi for 20%. In another study using a mathematical model developedfrom disease severity data, C. sorghi, Ramulispora sorghicola and Puccinia purpurea caused losses of 15, 5 and 3%, respectively. In field trials of sorghum accessions, at various locations, sources of resistance to 6 of these diseases were identified and recommended as breeding stock in animprovement programme.

Item Type:	Monograph (Technical Report)
Additional Information:	Research was funded by USAID/Honduras, Escuela Agricola Panamerica and INTSORMIL Grant AID/DAN-1254-G-SS-5065-00.
Uncontrolled Keywords:	Sorghum; diseases; Honduras; yield losses;Crop losses; Acremoniumstrictum; Maize dwarf mosaic potyvirus; Peronosclerospora sorghi; Cercospora sorghi; Ramulispora sorghicola; Puccinia purpurea; Viruses; potyvirus group, RP6980
Author Affiliation:	Texas A&M University
Subjects:	Plant Production Plant Protection
Divisions:	Sorghum
Depositing User:	Mr Daneti Raju
Date Deposited:	24 Mar 2014 10:33
Last Modified:	24 Mar 2014 10:33
URI:	http://eprints.icrisat.ac.in/id/eprint/12613

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