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Copyright Goodheart-Willcox Co., Inc.
Growth Media . . . . . . . . . . . . . . . . 434
Stages of Micropropagation . . . . 434
Stage 0: Selection and Cultivation
of Stock Plants . . . . . . . . . . . . . 435
Stage 1: Initiation or
Establishment. . . . . . . . . . . . . . 435
Stage 2: Multiplication . . . . . . . . . . . 436
Stage 3: Rooting . . . . . . . . . . . . . . . 438
Stage 4: Acclimatization . . . . . . . . . 438
The Future of Tissue Culture
and Micropropagation . . . . . . . 439
Careers in Micropropagation . . . 440
Micropropagation Lab
Technician . . . . . . . . . . . . . . . . 441
Cryopreservation Scientist . . . . . . . 441
Career Connection:
Ty Strode,
Agri-Starts, Inc. ...............................442
Review and Assessment . . . . . . . . 443
Chapter
18
Greenhouse Operation and
Maintenance . . . . . . . . . . . .448
Greenhouse Planning . . . . . . . . . . 450
Site Location . . . . . . . . . . . . . . . . . . 450
Crops to Be Cultivated . . . . . . . . . . 452
Climate . . . . . . . . . . . . . . . . . . . . . . 452
Greenhouse Orientation . . . . . . . . . 453
Operating Costs . . . . . . . . . . . . . . . 453
Market Opportunities . . . . . . . . . . . 454
Greenhouse Structures . . . . . . . . . 454
Even Span . . . . . . . . . . . . . . . . . . . 455
Uneven Span . . . . . . . . . . . . . . . . . 455
Lean-To . . . . . . . . . . . . . . . . . . . . . . 455
Quonset . . . . . . . . . . . . . . . . . . . . . 455
Gothic Arch . . . . . . . . . . . . . . . . . . . 455
Ridge and Furrow . . . . . . . . . . . . . . 455
Sawtooth . . . . . . . . . . . . . . . . . . . . . 456
Other Growing Structures . . . . . . . . 456
Greenhouse Components . . . . . . 457
Covering Materials . . . . . . . . . . . . . 457
Fans . . . . . . . . . . . . . . . . . . . . . . . . 458
Louvers, Shutters, and Vents . . . . . 459
Evaporative Cooling . . . . . . . . . . . . 460
Heating Systems . . . . . . . . . . . . . . . 461
Floors . . . . . . . . . . . . . . . . . . . . . . . 462
Benches . . . . . . . . . . . . . . . . . . . . . 463
Irrigation . . . . . . . . . . . . . . . . . . . . . 464
Additional Greenhouse Equipment . . . 466
Maintaining Structures and
Equipment . . . . . . . . . . . . . . . . . . 469
Structural Maintenance . . . . . . . . . . 469
Greenhouse Equipment
Maintenance . . . . . . . . . . . . . . 470
Greenhouse Structure Careers . . 471
Greenhouse Engineer . . . . . . . . . . . 471
Greenhouse Construction
Worker . . . . . . . . . . . . . . . . . . . 471
Career Connection:
Neil Devaney,
Account Executive, Greenhouse
Sales ...............................................472
Review and Assessment . . . . . . . . 473
Chapter
19
Greenhouse Production . . . .478
Environmental Requirements . . . 480
Light . . . . . . . . . . . . . . . . . . . . . . . . 480
Air . . . . . . . . . . . . . . . . . . . . . . . . . 482
Nutrients . . . . . . . . . . . . . . . . . . . . . 483
Temperature . . . . . . . . . . . . . . . . . . 485
Water . . . . . . . . . . . . . . . . . . . . . . . 486
Pest Control . . . . . . . . . . . . . . . . . . 489