Laval M. Verhalen
Professor

 

Academic Areas

AGRON 4783 "Cotton Production"

AGRON 5414 "Plant Breeding Theory, Methods, and Strategies" (With Carver and Smith)

AGRON 6263 "Classical Evolution" (Inactive)

Research Interests

Cotton variety and strains testing, genotype by environment interactions

Cotton breeding, breeding methodology, quantitative and qualitative genetics

Cotton cultural studies (Experimental methodology, planting dates, minimizing competition from pests, maximizing benefits from inputs, minimizing abiotic stress, plant mapping)

Recent Publications

Mercer, Kay L., John A. Pawlak, Don S. Murray, Laval M. Verhalen, Michael S. Riffle, and Ronald W. McNew. 1990.Distance-of-influence of devil's-claw (Proboscidea louisianica) on cotton (Gossypium hirsutum). Weed Technol. 4:87-91.

Smith, Brenda S., John A. Pawlak, Don S. Murray, Laval M. Verhalen, and J. D. Green. 1990.
Interference from established stands of silverleaf nightshade (Solanum elaeagnifolium) on cotton
(Gossypium hirsutum) lint yield. Weed Sci. 38:129-133.

Murray, Don S., Laval M. Verhalen, and Ronald J. Tyrl. 1992. The changing weed problem in cotton. p. 117-232. In C. G.

McWhorter and J. R. Abernathy (ed.) Weeds of cotton: Characterization and control. The Cotton Foundation, Publ.,Memphis, TN.

Banks, J. C., Laval M. Verhalen, Gerrit W. Cuperus, and Miles A. Karner (ed.) 1992. Cotton production and pest management in Oklahoma. Oklahoma Coop. Ext. Serv. Circ. E-883. 104 pp. (16 chap.)

Education

1968 Ph.D., Oklahoma State University, Stillwater, OK, Plant Breeding and Genetics
1963 B.S., Texas Technological College, Lubbock, TX, Agronomy (Crops Option) with Honors