Dec 01, 2022  
2020-2021 Course Catalog 
    
2020-2021 Course Catalog [ARCHIVED CATALOG]

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AGH 233 - Plant Propagation I

Credits: 3
Lecture Hours: 2
Lab Hours: 2
Practicum Hours: 0
Work Experience: 0
Course Type: Voc/Tech
An introduction to plant propagation with emphasis on grafting, herbaceous and hardwood cuttings, and greenhouse and nursery seeds. Propagation schedules, equipment, structures and growth regulators will be discussed.
Prerequisite: AGH 106   or BIO 104  or BIO 112  or BIO 135  or BIO 138  or BIO 145  
Competencies
  1. Explain the environmental factors affecting plant growth
    1. Describe water and nutrient uptake.
    2. State the impact of temperature on the rate of cell division.
    3. Recall the role light plays in the growth process.
  2. Summarize the functions and operations of various propagating structures and associated equipment and materials.
    1. Compare greenhouses, hotbeds, cold frames, and lath houses as propagating structures.
    2. Evaluate structure coverings of glass, plastic, polyethylene, fiberglass, wood lath,and screening.
    3. Contrast soil, sand, peat, vermiculite, perlite, sawdust, compost, and other materials as propagating medias
    4. Identify the various containers used to hold propagating medias.
    5. List the characteristics of a effective propagating media.
    6. Explain the function of temperature within the propagating media.
    7. Describe the function and operation of a mist bench.
  3. Explain the formation and development of a seed in sexual reproduction.
    1. Contrast pollination and fertilization.
    2. Identify the parts of a seed.
    3. Describe the function of each seed part.
  4. Describe the principles of propagation by seed.
    1. State the importance of seed quality in the germination process.
    2. List the environmental factors conducive to the germination of seed.
    3. Identify the stages of the germination process.
    4. Name the factors of dormancy which may impact germination.
  5. Demonstrate seed treatments involved with scarification and stratification.
    1. List the various scarification methods
    2. Describe what happens to seed in the scarification process.
    3. List the various stratification methods.
    4. Describe what happens to seed in the stratification process.
  6. Explain how plant anatomy impacts propagation by cuttings.
    1. Identify the different types of cuttings used in asexual propagation by cuttings.
    2. Recall which types of cuttings are used to propagate each general plant group.
  7. Explain how plant physiology affects propagation by cuttings.
    1. Define what a plant hormone is.
    2. Identify the plant hormones.
    3. Define what a plant growth regulator is.
    4. Identify the plant growth regulators.
  8. Describe the physiology of a grafted plant.
    1. Describe the role of rootstock and scion meristematic tissue contact.
    2. State the sequence of the wound healing process.
    3. Recall the tissue differentiation sequence which follows callusing.
    4. Cite how the laying down of new vascular tissue is a requisite for a successful graft union.
  9. Demonstrate grafting techniques
    1. Identify the components of a graft; rootstock, scion, interstock.
    2. Name the equipment and materials used in making grafts.
    3. List the different types of grafts and the purpose of each.
    4. Explain the importance of polarity when making grafts.



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