Quiz 1 Flashcards

1
Q

What single family of plants are all grasses members of?

A

Poaceae

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2
Q

What is grass? Monocot or Dicot?

A

Monocot- single cotyledon (seed leaf)

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3
Q

What kind of roots does grass have?

A

Fibrous roots - spread out

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4
Q

Two major groups of grass? What does grass perform?

A

Cool Season - (C3) Warm Season - (C4) Photosynthesis

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5
Q

Examples of Cool Season?

A

Poa (Bluegrass), Festuca (Fescue) Lolium (Rye) Agrostis (Bent)

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6
Q

Examples of Warm Season?

A

Cynodon (Bermuda) Zoysia

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7
Q

What is special about the Transition Zone of Turfgrass?

A

Both Cool and Warm Season grasses compete.

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8
Q

Inflorescence - What is it?

A

The flowering portion of the shoot

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9
Q

Spikelet - What is it?

A

Basic unit of a grass inflorescence

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10
Q

What does a Spikelet consist of?

A

Two Glumes and 1 or more Florets

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11
Q

Floret - What is it?

A

A single flower enclosed by the lemma and palea (bracts)

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12
Q

Three types of Arrangements of Spikelets?

A

Raceme Spike Panicle

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13
Q

Spike - What kind of arrangement is it?

A

Attached directly to main supporting axis

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14
Q

Raceme - What kind of arrangement is it?

A

borne on pedicels (stalks) attached directly to the main axis

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15
Q

Panicle - What kind of arrangement is it?

A

Borne on branches arising from the main axis

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16
Q

Primary Root

A

Root that develops from the embryo (seed)

17
Q

Adventenious Root

A

A root that arises from any organ other than the embryo

18
Q

Node - What is it? Where is it? (Region of stem where the ________ is attached.

A

Joint of a stem, region of stem were the leaf is attached

19
Q

Auxillary Bud

A

Vegative bud arising at the junction of the leaf and stem

20
Q

Types of Leaf Blades

A

Pointed

Boat

Blunt

21
Q

Leaf Sheath

A

Lower Tubular portion of the leaf that encircles the stem

22
Q

Types of Leaf Sheaths

A

Closed

Open

Overlap

23
Q

Vernation

A

Arrangement of new leaves within the older leaf sheath

Either Rolled or Folded

24
Q

Examples of Folded Vernation

A

Poa and Rye

25
Example of Rolled Vernation
Fescue Tall
26
Collar
a band at the junction of the leaf blade and leaf sheath
27
Three types of Collars
Divided Broad Narrow
28
LIgule - What is it? Where is it? (Junction of the _________ and \_\_\_\_\_\_\_\_\_)
Appengage on the inner side of a grass leaf at the junction of the blade and sheath
29
Types of Ligules
Absent Membranus (smooth) Hairy
30
What grasses have hairy ligules?
Warm Season, Zoa and Burmuda
31
Auricle - What is it? Where is it? (base of the \_\_\_\_\_\_\_\_\_\_\_)
Appendage occuring in pairs at the base of the blade
32
Types of Auricles
Absent Small Prominant
33
Example of Prominant Auricle?
Rye Annual
34
Examples of Stoloniferous Grass
Bermuda Creeping Bent Zoa
35
Examples of Rhizomatous Grass
Kentucky Bluegrass
36
Example of Bunch Type Growth (Tillers)
Tall Fescues Rye Chewings and Hard Fescue
37
38