Pak. J. Bot., 29(2): 229-234, 1997.

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			Updated: 08-04-11
	ESTIMATION OF YIELD LOSSES IN CORN DUE TO STALK ROT PATHOGENS YASMIN AHMAD, A. HAMEED¹, M. ASLAM AND A. GHAFFAR ² Abstract: Pathogenicity of Fusarium moniliforme, F. graminearum and Macrophomina phaseolina isolated from stalk rot disease of corn were tested on a susceptible com cv. Shaheen in different seasons and at different stages of plant growth at the National Agricultural Research Centre (NARC), Islamabad, Pakistan. F. moniliforme and M. phaseolina in combination produced 77.9 and 89.0% infection with respectively 21.7 and 25.9% reduction in grain yield during spring and summer seasons of 1988, whereas F. graminearum produced 32.8 and 49.4 % disease severity with 0.9 and 1.4 % reduction in grain yield during the same spring and summer seasons. Crop Diseases Research Institute, National Agricultural Research Centre, Park Road, P. O. NIH, Islamabad, Pakistan. Department of Biological Sciences, Quid-i-Azam University, Islamabad, Pakistan. Department of Botany, University of Karachi, Karachi-75270, Pakistan.

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