Horticulture (HORT) Courses

College of Agriculture, Forestry & Natural Resource Management (CAFNRM)

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HORT 262 Princ Of Hort (3) (lecture/lab) Introduction to the various divisions of horticulture and the relationship of plants to environment; Plant structure and function with opportunities for observation and practice of various horticultural technologies. Students are required to participate in a garden project. (Attributes: ALEX, DB, GCC)

HORT 263 Hydroponics and Vegetables (3) (lecture/lab) Introduction to circulating and non-circulating hydroponic methods and olericulture. In this course, students are required to participate in the construction and maintenance of a hydroponic system and field-based vegetable production. Pre: HORT 262.

HORT 352 Orchard & Horticultural Crops (3) (lecture/lab) History, botanical relationships, climatic relationships, culture, management, and marketing. Excursions to various fruit orchards. Pre: HORT 262 or instructor's consent.

HORT 353 Organic Crop Production (3) (lecture/lab) This course will cover the cultural practices (crop rotations, cover crops, pest management, etc.) and biological processes (composting, soil food web, plant and animal health, etc.) that form the basis for organic production of plant and animal products (fruit, nuts, vegetables, grain, forage, pasture, milk, meat, and eggs) and land stewardship. The course will provide an overview of organic agriculture history, philosophy, and sociology in addition to organic production practices and the USDA National Organic Program. Several course topics will be presented as invited guest lectures.

HORT 450 Adv Plant Tissue Cult (3) (lecture/lab) Provides the student with hands-on experience in plant tissue culture techniques. Evaluative and diagnostic skills will be emphasized. Students will design and test techniques most appropriate for tissue culturing plant(s) of interest. Limited enrollment. Repeatable for a maximum of six credit hours. Pre: HORT 303.

HORT 451 Plant Improvement (3) (lecture/lab) Application of plant breeding techniques and methods of improving crops with special emphasis on Hawaiian plants.

HORT 471 Post Harvest Handling (3) (lecture/lab) Methods of handling, storing, and shipping of fresh horticultural commodities with emphasis on Hawaiian fruits, vegetables, and ornamental plants. Pre: CHEM 151 or CHEM 161 or equivalent, and HORT 262.

HORT 481 Weed Science (3) (lecture/lab) Classification, identification, and adaptation of weeds. Principles of weed control, including properties, use, and action of herbicides. Pre: HORT 262 or BIOL 171 and one year of chemistry. (Attributes: GCC, HPP)


HORT x94 Special Topics in Subject Matter (Arr.) Special topics chosen by the instructor. Course content will vary. May be repeated for credit, provided that a different topic is studied. Additional requirements may apply depending on subject and topic.

HORT x99 Directed Studies (Arr.) Statement of planned reading or research required. Pre: instructor’s consent.