6 Flashcards
Plants convert chemical energy into light energy which results in plant growth.
False
Wavelengths are measured in __________ with specific wavelengths corresponding to specific __________.
Nanometer, color
Photoperiodism is a phytochrome-mediated response.
true
Modern __________ cultivars come in an astonishing variety of colors, color combinations and petal styles (spoon, quill, and flat).
Chrysanthemum (daisy)
Dahlias are native to the mountains of __________.
Mexico
Growth is best for Helianthus annus L. between _______________ and __________ sun is always preferred.
65 to 75 F, full
__________ is an example of a species that is commercially cultivated.
Exacum affine
When spores germinate, they form a small __________ leaf like structure known as the prothallus.
green
__________ is any method of breaking through hard, water-impermeable seed coats to allow water to penetrate.
Scarification
Disadvantages to pregermination are limited shelf life of _______________, limited selection, and limited cost.
4 to 5 weeks
Floral supply companies focus their inventories on hard goods and tools but primarily on fresh flowers and foliage.
False
__________ were historically the first people to use flowers for decorative purposes.
Egyptians
The strewing of flowers and loose petals at banquets and festivals was typical of the _______________ period.
Greek and Roman
The _______________ period is considered the beginning of flower arranging as it is known today.
Italian Renaissance
The point at which the plant is receiving as much light energy as it can use is the _______________ point.
Light saturation
