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WorksheetsChapter 19 Review
Total questions: 16
Worksheet time: 8mins
A plant’s response to the number of uninterrupted hours of darkness is called:
Critical day length
Night interruption
Photoperiodism
Critical night length
The length of dark period needed to initiate flowering in a plant is referred to as:
Critical night interval
Night interruption
Photoperiodism
Critical day length
A fertilizer that lacks one or more of the three primary macronutrients is called:
Incomplete fertilizer
Complete fertilizer
Macronutrient fertilizer
Micronutrient fertilizer
Fertilizers that do not readily mix with or dissolve in water are referred to as:
Complete
Insoluble
Soluble
Incomplete
Hormones that speed or slow plant growth are called:
Plant growth regulators
Fertilizers
Biofungicides
Biostimulants
What can a grower do if water quality is not sufficient for plant growth?
Purify with reverse osmosis
Blend with nonproblem water
Blend with reclaimed water
All of the above
A growing media should:
Support the plant and roots
Hold water and nutrients
Allow air circulation
All of the above
Plant material that is free of soil and can be shipped when dormant is called:
Plug or liner
Bulb or tuber
Bare root
Seed
This type of plant material must be rooted by another grower:
Unrooted cutting
Seed
Bulb or tuber
Bare root
Greenhouse crops cultivated for human consumption are:
Perennial plants
Vegetables and herbs
Bedding plants
Foliage plants
0-0-20 is an example of a complete fertilizer.
(a)
Wilting is always a sign of underwatering.
(a)
Another name for media is substrate.
(a)
Container selection is not important when growing crops.
(a)
Bedding plants are plants used mainly for ornamental purposes and usually last one season.
(a)
Types of crops grown in a greenhouse include container plants, foliage plants, vegetables and herbs, plants for cut flowers, bedding plants, and perennial plants.
(a)
