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 3 OSU Dr. Karen Hickman Fall - Odd Years

 AGRO 843 course description:

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.

AGRO 847: Grassland Fire Ecology 3 SDSU Dr. Sandy Smart Fall - Odd Years

 AGRO 847 course description:

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.

AGRO 848: Grassland Monitoring & Assessment 2 KSU Dr. Walter Fick Fall - Even Years

 AGRO 848 course description:

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.

AGRO 849: Watershed Management in Grasslands 3 NDSU Dr. Jack Norland Spring

 AGRO 849 course description:

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.

HORT 842A: Plant Pathology 3 UNK Dr. Paul Twigg Spring - Even Years

 HORT 842A course description:

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.

HORT 842B: Plant Physiology 3 UNK Dr. Paul Twigg Fall - Even Years

 HORT 842B course description:

Presents fundamental concepts underlying the science of crop physiology, including crop phenology, canopy development and light interception, photosynthesis and respiration, and dry-matter partitioning.

HORT 842E: Floral Crops Production 2 KSU Dr. Kim Williams Spring - Odd Years

 HORT 842E course description:

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.

HORT 842J: Water Issues in Lawn & Landscape 3 KSU Dr. Dale Bremer Spring

 HORT 842J course description:

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.

HORT 843A: Greenhouse Crop Production 4 TTU Dr. Cynthia McKenney Spring - Odd Years

 HORT 843A course description:

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.

HORT 843B: Seed Science 3 TTU TBA TBA

 HORT 843B course description:

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 3 TTU Dr. Cynthia McKenney Spring - Even Years

 HORT 843E course description:

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.

HORT 843J: Herbicides & Weed Management Systems 4 TTU Dr. Peter Dotray Spring - Even Years

 HORT 843J course description:

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.

HORT 843K: Advanced Arboriculture 3 TTU Dr. Cynthia McKenney  Spring  - Even Years

 HORT 843K course description:

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.

HORT 843M: Weed Science 4 TTU Dr. Peter Dotray Fall - Odd Years

 HORT 843L course description:

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.

HORT 844A: Environmental Nursery Production Practices 3 NCSU Dr. Helen Kraus Fall - Odd Years

 HORT 844A course description:

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.

HORT 844B: Environmental Stress Physiology 1 NCSU Dr. John Williamson Spring

 HORT 844B course description:

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.

HORT 844E: General Viticulture 3 NCSU Dr. Sara Spayd Spring - Odd Years

 HORT 844E course description:

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.

AGRO 846: Forage Quality
   Scheduled for Summer 2014 - more details to follow.
AGRO 851: Grassland Plant Identification
   Spring 2014 - description to follow.


Spring 2014 (in progress)
Number Course Name
AGRO 849 Watershed Management in Grasslands
HORT 842A Plant Pathology
HORT 842J Water Issues in Lawn and Landscape
HORT 843E Advanced Interiorscaping
HORT 843J Herbicides and Weed Management Systems
HORT 843K Advanced Arboriculture
HORT 844B Environmental Stress Physiology
AGRO 851 Grassland Plant Identification

Summer 2014
Number Course Name
AGRO 846 Forage Quality
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