AG*IDEA Graduate Online Courses in
Horticulture & Grassland Management


  • Through the AG*IDEA consortium of universities, UNL graduate students can now complement their degree programs with 17 additional online courses, 13 in horticulture and 4 in grassland management.  The courses are taught by faculty from the following institutions: Kansas State University, North Carolina State University, North Dakota State University, Oklahoma State University, South Dakota State University, Texas Tech University and the University of Nebraska-Kearney. Please see the table below for a list of available courses.
  • Any student currently admitted to a graduate degree program at UNL may enroll in these courses with the express written permission of their advisor, on a space available basis.  
  • All courses are offered at the AG*IDEA common graduate tuition rate of $515 per credit hour for the 2014–15 academic year. The AG*IDEA common tuition includes all fees, exclusive of the application fee, but does not include textbooks and other materials that may be required by instructors.
  • Because this is a special contract program at UNL, enrollment and student billing are handled outside the MyRed system. Enrollment is handled by Diane Wasser, CASNR Distance Education Consortium Coordinator, and billing is handled by UNL's Office of Online and Distance Education. Students cannot enroll in these courses via MyRed. Once a student has enrolled, a registration confirmation and tuition statement will be mailed to the student's address of record.  
  • Students interested in enrolling in these courses should contact their advisors and request that written permission be e-mailed to: Diane Wasser, 402.472.6251. 

Distance Education

AG*IDEA logo

For more information or to enroll, please contact...

Diane Wasser
 CASNR Distance Education Consortium Coordinator

Abbreviations: KSU – Kansas State University, NCSU – North Carolina State University, NDSU - North Dakota State University; OSU - Oklahoma State University; SDSU - South Dakota State University; TTU – Texas Tech University, UNK – University of Nebraska–Kearney.

AG*IDEA Graduate Online Courses in Horticulture & Grassland Management
Core Courses                                Credit Hrs. Teaching Institution Instructor Offered
AGRO 843: Ecology of Invasive Species
Ecological principles and their application to invasive species. Discussion of population-level characteristics and community- and ecosystem-level effects of a wide variety of taxa, including invasive microbial, fungal, plant, invertebrate and vertebrate examples. Current global consequences and governmental policies/programs designed to limit the spread of invasives.

3 OSU Dr. Karen Hickman Fall - Odd Years
AGRO 847: Grassland Fire Ecology
Ecological effects of fire on grassland ecosystems. Insight into the history of fires, the people who use them and why, the parts of a fire, how fires behave in relation to fuel and weather, and the handling and safety of prescribed burns.
3 SDSU Dr. Sandy Smart Fall - Odd Years
AGRO 848: Grassland Monitoring & Assessment
Vegetation sampling theory and plot selection. Quantitative measures used in vegetation analysis, root growth and utilization. Use of similarity index, health and trend for grassland monitoring and assessment. Use of basic statistics and the microcomputer to analyze data sets comparing methods for determining biomass, basal cover, frequency and density.
2 KSU Dr. Walter Fick Fall - Even Years
AGRO 849: Watershed Management in Grasslands
Management of physical/biological settings and processes along with human activities on water and watersheds. Preventative and restorative strategies in a natural resource rangeland setting
3 NDSU Dr. Jack Norland Spring
HORT 842A: Plant Pathology
Survey of the principles and practices of plant pathology. The main and genetic elements involved in plant disease will be covered. Many of the major diseases, as well as their causes and effects, will be surveyed.
3 UNK Dr. Paul Twigg Spring - Even Years
HORT 842B: Plant Physiology
Presents fundamental concepts underlying the science of crop physiology, including crop phenology, canopy development and light interception, photosynthesis and respiration, and dry-matter partitioning.
3 UNK Dr. Paul Twigg Fall - Even Years
HORT 842E: Floral Crops Production
The principles and commercial practices for producing floral potted crops and cut flowers, emphasizing the physical responses of plants to their environment. Aspects of post-harvest physiology will be covered.
2 KSU Dr. Kim Williams Spring - Odd Years
HORT 842J: Water Issues in Lawn & Landscape
Examines critical water issues related to irrigation in urbanizing watersheds, with an emphasis on water quality and quantity. Factors impacting water scarcity and quality will be discussed. Course will help students understand the interrelatedness of correct irrigation practices and water quality/quantity, and will equip them with the necessary career tools to help protect water resources through application of science-based irrigation practices.
3 KSU Dr. Dale Bremer Spring
HORT 843A: Greenhouse Crop Production
Principles and practices of commercial production of greenhouse crops involving crop scheduling, greenhouse construction, heating, cooling, growing media, pest management, nutrition, fertility, growth regulation, irrigation, post?harvest handling, and marketing of greenhouse crops.
4 TTU Dr. Cynthia McKenney Spring - Odd Years
HORT 843B: Seed Science
Examines seed morphology, anatomy and chemistry. A study of the germination, emergence, and dormancy processes in seed, in addition to various quality aspects, including vigor, longevity, and deterioration. Genetically engineered seeds and other hot topics in seed science will also be included.
HORT 843E: Advanced Interiorscaping
Course focuses on the physiological principles and industry practices in the production, moving, care, and maintenance of interior plants. This course will equip students with the career tools to design, install and maintain interior plantscapes. This goal will be accomplished through the review of the pertinent literature and through class exercises designed to improve students' skills and knowledge of interior plant physiology, care and maintenance.
3 TTU Dr. Cynthia McKenney Spring - Even Years
HORT 843J: Herbicides & Weed Management Systems
Course examines the current state of herbicide modes and mechanisms of action and recent developments by industry and universities in herbicide physiology. Discussions will integrate plant anatomy, plant physiology, biochemistry, plant breeding, and principles of weed science as they relate to herbicide modes and mechanisms of action. This course is designed to examine how a herbicide molecule is absorbed (uptake) by plants, how it moves within plants (translocation), how it acts within plants (mode and mechanism of action), and the importance of metabolism as a means of selectivity between crops and weeds.
4 TTU Dr. Peter Dotray Spring - Even Years
HORT 843K: Advanced Arboriculture
Course focuses on the physiological principles and industry practices in the production, moving, care, and maintenance of ornamental trees, shrubs and ground covers. The purpose of this course is to provide students with the career tools to install and maintain woody plants. This goal will be accomplished through the review of the pertinent literature and through class exercises designed to improve students' skills and knowledge of woody plant physiology, care and maintenance.
3 TTU Dr. Cynthia McKenney  Spring  - Even Years
HORT 843M: Weed Science

Study of weeds and weed control methods in agronomic and horticultural crops and turf grass, with an emphasis on chemical weed control. Discussions will focus on the history of weed control, weed characteristics, weed competition, and methods of weed control, including mechanical, cultural, biological, and chemical. Herbicides will be discussed by family with specific regard to their chemical structure, efficacy, mode and mechanism of action, crop selectivity, soil activity and persistence, and cost.

4 TTU Dr. Peter Dotray Fall - Odd Years
HORT 844A: Environmental Nursery Production Practices
Cultural nursery crop production practices will be presented with consideration of current recommended Best Management Practices, conservation of resources, scientific research-based investigations related to nursery cultural practices, potential risks to nursery personnel and off-site movement of airborne materials and effluents to surrounding areas and public watersheds.
3 NCSU Dr. Helen Kraus Fall - Odd Years
HORT 844B: Environmental Stress Physiology
Physiology of plant responses to environmental stresses, with emphasis on current research in selected physiological, molecular, and biochemical mechanisms for tolerance to environmental stresses such as temperature extremes, drought, salt, pathogens and other plants.
1 NCSU Dr. John Williamson Spring
HORT 844E: General Viticulture
Broad-based course covers aspects of grapes from vine anatomy to final products. Includes cultivars, propagation, canopy management, diseases, weed control, physiology, anatomy, irrigation, wine production, climates and soils.
3 NCSU Dr. Sara Spayd Spring - Odd Years


Fall 2014
Number Course Name
AGRO 848 Grassland Monitoring and Assessment
HORT 842B Plant Physiology
Spring 2015
Number Course Name
AGRO 849 Watershed Management in Grasslands
HORT 842E Floral Crops Production
HORT 842J Water Issues in Lawn and Landscape
HORT 843A Greenhouse Crop Production
HORT 844B Environmental Stress Physiology
HORT 844E General Viticulture

Fall 2015
Number Course Name
AGRO 843 Ecology of Invasive Species
AGRO 847 Grassland Fire Ecology
HORT 843M Weed Science
HORT 844A Environmental Nursery Production Practices