Graduate Programs

Are you interested in continuing your education?

Here you can find an overview of what you can expect from the Graduate Programs we offer.


We endeavor to develop long term relationships with our students and strive to prepare them for a host of real world employment opportunities.

Degree Programs

Masters in Plant and Soil Sciences
Ph.D. in Crop Sciences
Ph.D. in Plant Physiology

Graduate Faculty

The Ph.D. in Crop Sciences program allows for areas of specialization. For those interested in Weed Science we list the following faculty and their areas of specialization: 

Michael Barrett - Herbicide selectivity, resistance, and mode of action in plants 
J. D. Green - Pasture and field crops
Erin Haramoto - Pasture and field crops

Former Students

Our programs prepare you for a range of rewarding occupation pursuits.  Below are two recent alumni that have links on the departmental website.  Check out their career paths.

Jason Ferrell - Extension Weed Specialist in the Department of Agronomy at the University of Florida. 
Jennifer Ralston - Oilseeds Product Management Lead for the Monsanto Company.

Other UK weed science graduate students currently are faculty members for the Universities of Florida, Kentucky, Tennessee, and Wisconsin-River Falls.  Others work for seed companies such as Pioneer Hybrid Seeds and O. M. Scotts while others have research or development positions with major herbicide companies such as BASF, Dow AgroSciences, Monsanto, Syngenta, and Valent.

Graduate Student Research.

A sampling of graduate student research from 1995 to the present.

Weed Biology

Edwards, Meghan. Began 2008. Spiny Amaranth Growth and Reproduction from Commonly Used Pasture Herbicides. In progress.

Saphangthong, Thatsaka. 2008. Glyphosate Tolerance of Horseweed (Conyza canadensis (L.) Cronq.) Accessions from Kentucky

Crotser, Michael. 1998. Effects of Soybean Cultivar Interference on the Growth of Eastern Black Nightshade: Impact of Light Manipulation.

Gift, Nancy. 1995. The Soybean Canopy Opens: Effects of Maturity Group on Yield, Weed Emergence, and Harvest Interference. Grain Crop Weed Management

Marshal, Michael. 2005. Biology and Carbohydrate Fluctuations of Trumpetcreeper [Campsis Radicans (L.) Seem.] and its Control In No-Tillage And Minimum-Tillage

Brommer, Chad L. 2002. Characterization and Economic Analysis of Perennial Weed Populations in Kentucky No-till Production Fields.

Ferrell, Jason A. 2000. Comparison of Glyphosate with Other Herbicides for In-Season Weed Control in Corn.

Moreno, Raul. 1997. Weed Control in Glyphosate-Tolerant Soybean with Glyphosate Used Alone and in Combination with Other Herbicides.

Greenwell, Joe. 1995. Evaluation of Glyphosate-Tolerant Soybean as an Alternative Method of Weed Management in No-Till Production of Soybean.

Ewing, Justin M. 2000. Effects of Weed Management Strategies on Winter Wheat in Kentucky.


Tolson, Josh. Began 2008. Impact of Herbicide, Fertility, and Mowing On Tall Ironweed Growth and Reproduction. In progress

Fryman, Daisy M. 2009. Comparison of Rope-Wick and Broadcast Treatments For Control Of Canada Thistle And Tall Ironweed

Soil and Herbicide Interactions

Lee, Andrew T. 2002. Persistence and Efficacy of Fall-Applied Simazine and Atrazine in No-Till Corn Production.

Murdock, Shea W. 1999. Diclosulam Dissipation in Three Soybean Tillage Systems. Ralston, Jennifer Lambert. 1996. Movement of Herbicides in Shallow Ground Water in No-Till Double-Cropped Soybean

Jacobson, Brent D. 1994. Relationship of Herbicide Fate in Agricultural Soils to Water Contamination.

Non crop - Right of Way

Settles, Joseph E. 2000. Response of Native Plant Communities One Year after Herbicide Treatment, Mowing, or Burning in Power Line Rights-of-Way.

Herbicide Selectivity / Resistance / Mode of Action

Freytag, Ann M. 2003. Genetic Control of Chlortoluron Sensitivity in Corn and Wheat.

Ferhataglu, Yurdagul. 2001. Basis for the Safening of Cotton from Herbicide Clomazone by the Organophosphate Insecticide Phorate and Studies of Clomazone Mode of Action

Ralston, Jennifer L. 2001. Promoter Analysis and Herbicide Metabolism Capabilities Of A Safener-Inducible Cytochrome P450 From Corn.

Obermeier, Michelle R. 1998. Enzymatic, Molecular, and Genetic Characterization of Acetyl Coenzyme A Carboxylase Inhibitor Resistant and Susceptible Johnsongrass (Sorghum halepense) Biotypes.

Schmenk, Richard. 1997. Biochemical Characterization of an Acetolactate-Synthase-Inhibitor-Resistant Smooth Pigweed Biotype and Its Management in Soybean.