Junior Nursery Landscape CDE Written Responces Study Guide- GA

Nitrogen is most often absorbed by a plant's _______

Root

Vermiculite and peat moss increase ____________the of a growing medium.

Water Holding Compacity

The general rule is to never remove more than of the turfgrass leaf blade at any one time.

1/3

_________________ are growth promoting hormones

Auxins

Which of the following is an example of a cool season turfgrass?

Bentgrass

Watering late in the day may not allow plant leaves to dry before nightfall. Wet plant leaves provide an ideal environment for the development of many .

Diseases

The term ______________ describes permanent structures, such as fences, patios, walks and driveways, water features, and retaining walls.

Hardscape

is when growers overcome embryo dormancy by placing seeds in a moist soil medium at temperatures between 32 and 50oF for a certain period of time.

Stratification

_________ is heat-treated mica. It is a lightweight product with high moisture holding capacity.

Vermiculite

The signal word , indicates that a pesticide is slightly toxic.

caution

After a seed germinates and begins to grow, the _________ will wither as the "true" leaves develop.

cotyledons

The waxy coating, called the , serves to prevent excessive water loss from the leaf tissues.

cuticle

______ are characterized by having two seed leaf in their seedling stage.

dicots

Covering the ground with a layer of plastic, sawdust, or other material to prevent weed growth is a form of pest control.

mechanical

A soil with a pH of 7.0 is considered

neutral

The chemical process known as is the reverse of cellular respiration.

photosynthesis

Plant is the term used to refer to the reproduction of new plants from seeds or vegetative parts of a plant.

propagation

Covering the ground with pine straw or bark mulch ________________ .

reduces weed seed germination, moderates soil temperature fluctuations and retains soil moisture

A fertilizer that dissolves in water for immediate use is called

soluble

Which plant structure serves the function of support and transportation

stem

A _______________ is a material that helps the dispersing, spreading, wettings, or emulsifying of a pesticide formulation.

surfactant