|1. Description - |
|Principles of plant propagation with an emphasis on techniques that are used in the nursery and greenhouse industries. Seeds, cuttings, grafting techniques, and the separation and division of specialized structures. This course is an elective for Horticulture certificates and degrees, and is intended for students in the horticulture program but members of the public and professional community are invited to enroll.|
|Advisory: Completion of, or concurrent enrollment in HORT 15 strongly recommended; not open to students with credit in HORT 52B.|
|2. Course Objectives - |
|The student will be able to: |
- Demonstrate an understanding of the propagation methods used in the commercial production of plants around the world.
- Identify the basic anatomy of various different types of seeds and determine requirements for germination, harvesting storage and propagation.
- Demonstrate knowledge and skills required to select and employ common techniques of vegetative propagation for various plants species.
- Organize, schedule, and implement skills and practices used in the production and merchandising of selected nursery crops.
- Design and carry out experiments to determine specific characteristics of seeds and cuttings and determine their responses under controlled environmental conditions.
- Interpret experimental results and determine their significance relative to commercial crop production.
|3. Special Facilities and/or Equipment - |
|Horticultural laboratory, greenhouse, and related horticultural facilities and equipment. Students provide pruning shears with sheath, work boots, leather gloves and clothing for fieldwork. |
|4. Course Content (Body of knowledge) - |
- Seed anatomy and development
- methods for selecting seeds
- methods for preserving seed quality
- Evaluation of seed lots based on experiments to determine germination rate and percentage
- Techniques in seed handling and commercial seed production
- Vegetative methods of propagation
- cutting propagation
- separating and division of specialized structures
- grafting and Layering
- Schedule and implement a variety of propagation experiments
- Evaluation of cuttings based on responses to various concentrations of root stimulating hormones
- Overview of current tissue culture techniques
- Culture preparation
- Plant separation and grow out
- Overall comparison of propagation techniques and their application to production of specific crops worldwide
- Use of techniques specific to certain crops
- Use of general techniques applied to a variety of crops
|5. Repeatability - Moved to header area.|
|6. Methods of Evaluation - |
- Lab journal and/or project
- Final examination
|7. Representative Text(s) - |
|Toogood, Allan, The Complete Book of Plant Propagation, New York, NY, American Horticultural Society, DK Press, 2001. |
|8. Disciplines - |
|Environmental Horticulture & Design |
|9. Method of Instruction - |
- Participate in discussions.
- Engage in lab activities.
- Guest speakers.
- Engage in small group discussions.
- Read assigned reading activities.
- Perform self-guided research.
|10. Lab Content - |
- Starting seed.
- Light treatment
- Heat treatment
- Other seed treatments
- Division of plants.
- Cutting plants.
- Hardwood cuttings.
- Softwood cuttings.
- Tip cuttings.
- Root cuttings.
|11. Honors Description - No longer used. Integrated into main description section.|
|12. Types and/or Examples of Required Reading, Writing and Outside of Class Assignments - |
- Reading assignments will include reading approximately 30-50 pages per week from assigned text. Supplemental reading will be provided in hand-out form or through reference to on-line resources.
- Boodley, The Commercial Greenhouse. Propagation.
- Lectures will address reading topics and experiences of instructor. Classroom discussion and demonstrations in support of lecture topics will be provided.
- Guest speakers from industry will provide supplemental lecture and demonstration.
- Writing assignments include:
- topical white papers
|13. Need/Justification - |
|This course is a restricted support course for the AS degree and Certificate of Achievement in Environmental Horticulture & Design. |