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ARS Home » Southeast Area » Stoneville, Mississippi » Crop Production Systems Research » People » Krishna Reddy

Krishna Narasim Reddy

Research Leader

Dr. Krishna N. Reddy
Research Leader
Crop Production Systems Research Unit
141 Experiment Station Road
PO Box 350
Stoneville, MS  38776

Phone: 662.686.5272
Fax:     662.686.5422
Office:  Bldg 1 Room 544

Dr. Reddy received a B.S. in Agriculture (1973) and a M.S. in Agronomy (1975) from the University of Agricultural Sciences, Bangalore. Later, he earned his Ph.D. in Weed Science from the Ohio State University (1987). After a few postdoctoral stints, Dr. Reddy joined the USDA-ARS Crop Production Systems Research Unit (formerly Southern Weed Science Research Unit), Stoneville, Mississippi in 1992, where he currently serves as a Research Leader of the Crop Production Systems Research Unit.

Dr. Reddy's research deals with weed biology and integrated weed management systems for soybean, corn, and cotton, and assessment of benefits and safety aspects of transgenic crops.  The areas of research include conservation tillage, cover crops, narrow row and twin row spacing, crop rotations, herbicide-resistant crops, and herbicide drift.  Dr. Reddy in collaborative studies elucidated causes for glyphosate injury in glyphosate-resistant soybean and determined glyphosate effects on secondary metabolites. It was demonstrated for the first time that ‘yellow flashes’ in soybean were from aminomethylphosphonic acid, a metabolite of glyphosate. He has been working with herbicide-resistant crops ever since they were introduced in the mid-1990s. He is best known for his research on weed management in corn, cotton, and soybean and physiological aspects of glyphosate-resistant crops.

Dr. Reddy has authored and co-authored over 230 research articles, reviews, or book chapters, and 270 abstracts. Dr. Reddy has received several awards: Weed Scientist of the Year (2011) from Southern Weed Science Society; Fellow (2010) of Weed Science Society of America; 2008 Outstanding Research Award from the Weed Science society of America; 2005 Fellow from the Indian Society of Weed Science; 2004 Education Award from the Mississippi Weed Science Society; 2002 Research Award from the Mississippi Weed Science Society. Dr. Reddy has served on graduate student committees, led research program of postdoctoral research associates, and hosted international visiting scientists. He was an Associate Editor for Weed Technology (2004-2011).