Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Turfgrass Development > Lecture 1 > Flashcards

Lecture 1 Flashcards

1
Q

Inflorescence is…

A

The Seedhead or Flowering portion of the shoot.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Floret

A

Single flower enclosed by lemma and palea (bracts).

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

The arrangement of spikelets within an inflorescence is of three primary types called:

A

Spike, Raceme and Panicle.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

On an Inflorescence, when the spikelets are directly on the main supporting axis (branch) it is called:

A

a Spike.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

When the spikelets within an inflorescence are on pedicels (stalks) attached directly to the main axis it is called:

A

Raceme

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

When the spikelets within an inflorescence are on born on branches, arising from the main axis, they are called:

A

Panicle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

A __________ root develops from the embryo.

A

A Primary Root

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

A root that arises from any organ, other than the embryo is called a ___________.

A

Adventitious root.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Node

A

Joint of a stem; the region of a stem where the leaf is attached.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Axillary Bud

A

Vegetative bud arising at the junction of the leaf and the stem.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

The Spikelet is

A

The basic unit of grass Inflorescence…consists of two Glumes and one or more Florets.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Internode

A

The region of the stem between the nodes.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Leaf Blade is also called a

A

Lamina

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Leaf Blade or Lamina. Explain.

A

Upper, flattened portion of the turfgrass leaf, it extends outward at an angle from the sheath.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

The lower tubular portion of the leaf that encircles the stem is called the ___________.

A

Leaf Sheath

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

The Leaf Sheath: 3 options to look for are

A

Open, Closed or Overlap

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Arrangement of new leaves within the older leaf sheath is called :

A

Vernation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Vernation can be seen as either ________ or _________.

A

Folded (poa,rye), Rolled (tall fescue)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

A band at the junction of the leaf blade and the leaf sheath is called the

A

Collar

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

The Collar can be described as any of these:

A

Divided, Broad or Narrow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

A Ligule is:

A

An appendage on the inner side of the grass Leaf at the junction of the blade and the sheath.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

The Ligule. Look for:

A

Absent, Membranous or Hairy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What is the Auricle?

A

Appendages occurring in pairs at the base of the blade.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

What do you look for in an Auricle?

A

Absent, Small or Prominant

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

A Stolon is :

A

Above ground stem with elongated internodes that arise from an axillary bud extravaginally adventitious roots may develop at it’s nodes. It’s a STEM….not a root!

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

What is a Rhizome?

A

A below ground stem with elongated internodes that arises from an axillary bud extravaginally adventitious roots may develop at it’s nodes. **same as Stolon but underground

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

What is a Tiller?

A

An erect, lateral shoot that develops intravaginally from an axillary bud.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Define Growth Habit:

A

The orientation of the shoots. Erect or lying down….rhizomes, stolons or tillers?

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Flowering Culm

A

The upper portion of the stem that connects with the Inflorescense,

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

What is the male part of the grass flower?

A

Stamen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

What is the female part of the grass flower ?

A

Pistil

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

C3 means

A

Cool Season Grass. 3 Molecules

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

C4 means

A

Warm Season grass. 4 molecules

34
Q

C4 grasses are more efficient at capturing CO2 which allows them to:

A

Keep Stomata closed, maximize photosynthetic activity and reduce transpiration.

35
Q

C3 growth begins when soil temps reach….

A

40-45 degrees

36
Q

C3’s optimum growth rate occurs when the outside temperatures are at….

A

60-70 degrees

37
Q

C4 Grasses optimum grown occurs at _____ Degrees.

A

80-95

38
Q
A
39
Q

All grasses are members of a single family of plants called:

A

Poaceae

(Po-A-C-A)

40
Q

What is the Mesocotyl?

A

The mesocotyl is an underground stem segment arising from the seed.

41
Q

C4 Grasses optimum growth ocurs when soil temps reach:

A

60-65 degrees

42
Q

The Seedhead or Flowering portion of the shoot.

A

Inflorescence is…

43
Q

Single flower enclosed by lemma and palea (bracts).

A

Floret

44
Q

Spike, Raceme and Panicle.

A

The arrangement of spikelets within an inflorescence is of three primary types called:

45
Q

a Spike.

A

On an Inflorescence, when the spikelets are directly on the main supporting axis (branch) it is called:

46
Q

Raceme

A

When the spikelets within an inflorescence are on pedicels (stalks) attached directly to the main axis it is called:

47
Q

Panicle

A

When the spikelets within an inflorescence are on born on branches, arising from the main axis, they are called:

48
Q

A Primary Root

A

A __________ root develops from the embryo.

49
Q

Adventitious root.

A

A root that arises from any organ, other than the embryo is called a ___________.

50
Q

Joint of a stem; the region of a stem where the leaf is attached.

A

Node

51
Q

Vegetative bud arising at the junction of the leaf and the stem.

A

Axillary Bud

52
Q

The basic unit of grass Inflorescence…consists of two Glumes and one or more Florets.

A

The Spikelet is

53
Q

The region of the stem between the nodes.

A

Internode

54
Q

Lamina

A

Leaf Blade is also called a

55
Q

Upper, flattened portion of the turfgrass leaf, it extends outward at an angle from the sheath.

A

Leaf Blade or Lamina. Explain.

56
Q

Leaf Sheath

A

The lower tubular portion of the leaf that encircles the stem is called the ___________.

57
Q

Open, Closed or Overlap

A

The Leaf Sheath: 3 options to look for are

58
Q

Vernation

A

Arrangement of new leaves within the older leaf sheath is called :

59
Q

Folded (poa,rye), Rolled (tall fescue)

A

Vernation can be seen as either ________ or _________.

60
Q

Collar

A

A band at the junction of the leaf blade and the leaf sheath is called the

61
Q

Divided, Broad or Narrow

A

The Collar can be described as any of these:

62
Q

An appendage on the inner side of the grass Leaf at the junction of the blade and the sheath.

A

A Ligule is:

63
Q

Absent, Membranous or Hairy

A

The Ligule. Look for:

64
Q

Appendages occurring in pairs at the base of the blade.

A

What is the Auricle?

65
Q

Absent, Small or Prominant

A

What do you look for in an Auricle?

66
Q

Above ground stem with elongated internodes that arise from an axillary bud extravaginally adventitious roots may develop at it’s nodes. It’s a STEM….not a root!

A

A Stolon is :

67
Q

A below ground stem with elongated internodes that arises from an axillary bud extravaginally adventitious roots may develop at it’s nodes. **same as Stolon but underground

A

What is a Rhizome?

68
Q

An erect, lateral shoot that develops intravaginally from an axillary bud.

A

What is a Tiller?

69
Q

The orientation of the shoots. Erect or lying down….rhizomes, stolons or tillers?

A

Define Growth Habit:

70
Q

The upper portion of the stem that connects with the Inflorescense,

A

Flowering Culm

71
Q

Stamen

A

What is the male part of the grass flower?

72
Q

Pistil

A

What is the female part of the grass flower ?

73
Q

Cool Season Grass. 3 Molecules

A

C3 means

74
Q

Warm Season grass. 4 molecules

A

C4 means

75
Q

Keep Stomata closed, maximize photosynthetic activity and reduce transpiration.

A

C4 grasses are more efficient at capturing CO2 which allows them to:

76
Q

40-45 degrees

A

C3 growth begins when soil temps reach….

77
Q

60-70 degrees

A

C3’s optimum growth rate occurs when the outside temperatures are at….

78
Q

80-95

A

C4 Grasses optimum grown occurs at _____ Degrees.

79
Q
A
80
Q

Poaceae

(Po-A-C-A)

A

All grasses are members of a single family of plants called:

81
Q

The mesocotyl is an underground stem segment arising from the seed.

A

What is the Mesocotyl?

82
Q

60-65 degrees

A

C4 Grasses optimum growth ocurs when soil temps reach:

Turfgrass Development (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions