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Agronomy > agronomy final review > Flashcards

agronomy final review Flashcards

1
Q

species with rhizomes

A

kbg,fine fescue, creeping red fescue, Bermuda, zoysia, paspalum

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2
Q

where did bermuda grass originate

A

africa

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3
Q

fine fescue species with best red thread tolerance

A

hard fescue

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4
Q

mixture of seeds for low maintenance rough

A

KBG, fine fescue

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5
Q

has rhizomes and is susceptible to powdery mildew in the shade

A

KBG

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6
Q

reproduces by apomixes

A

KBG

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7
Q

flouresence test

A

shows if there is annual rye in with perennial seed, if it glows its annual

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8
Q

where did centipede grass originate

A

asia

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9
Q

warm season grass that’s most tolerant of heat and cold

A

buffalo

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10
Q

warm season grass with the best tolerance to salt and wet soils

A

seashore paspalum

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11
Q

big weakness of turf type rye

A

winter/cold stress

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12
Q

warm season species with interspecific hybridization

A

bermuda

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13
Q

what is a triploid?

A

comes from interspecific hybridization, sterile and does not produce seeds

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14
Q

KBG seeding rate?

A

2-3lbs/1000

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15
Q

50% KBG 30% fine fescue 20% PRG, good mixture?

A

yes

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16
Q

identified by opposite leaf arrangement, light green thick canopy

A

St.Augustine

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17
Q

5 states with seed laws/regulations

A

Delaware, PA, NJ, Virginia, Maryland

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18
Q

chewings fescue growing habit

A

sprouts by tillers

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19
Q

why is spring time bad for establishing seed

A

cool soil temperatures

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20
Q

fescue by Dr. Funk

A

rebel

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21
Q

most shade tolerant warm season grass?

A

zoysia

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22
Q

how are warm season grasses typically propagated?

A

sprigging/sod

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23
Q

first documented Bermuda grass program

A

tifway- Glen Burton

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24
Q

multiplication factor for sod or UGS test

A

10x

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25
Q

what is certification?

A

assurance for consumer that the seed in the bag is actually what is labeled

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26
Q

endophytes are transmitted by?

A

seed

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27
Q

endophytes do not control what

A

grubs

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28
Q

Tall fescue by Dr. Funk

A

rebel

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29
Q

origon of cool season grasses?

A

europe

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30
Q

spreads only by stolons and is used on road sides for erosion

A

Bahia grass

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31
Q

can be irrigated with gray water?

A

seashore paspalum

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32
Q

PRG disease issues?

A

gray leaf spot/pythium

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33
Q

hard fescue mowing height?

A

above 1/2”

34
Q

name 5 cool season grasses

A

poa annua, creeping bent, KBG, PRG, tall fescue

35
Q

name 5 warm season grasses

A

buffalo, Bermuda, zoysia, st Augustine, centipede

36
Q

blues/bents/ryes all have endophytes? T/F

A

false, blue and bent don’t have endophytes

37
Q

does KBG have good cold hardiness?

A

yes

38
Q

hard fescue growth habit?

A

bunch type-no rhizomes

39
Q

species that produce seedheads throughout the season?

A

poa, bermuda

40
Q

deepest rooting of cool season grasses?

A

tall fescue

41
Q

bentgrass in a KBG seed bag, problem or not?

A

yes it is a problem

42
Q

tetrazolium test.

A

slice seed open, apply tetrazolium, if it changes color then the seed is viable

43
Q

name 3 species without rhizomes

A

PRG, tall fescue, hard fescue, chewings fescue

44
Q

KBG in a PRG seed bag, problem or no?

A

no problem

45
Q

poa triv seed in a tall fescue seed bag, problem?

A

yes, problem

46
Q

PRG winter tolerance?

A

bad

47
Q

species in south german bent?

A

colonial, creeping, velvet

48
Q

best way to get speed on greens?

A

lightweight roll, topdress

49
Q

thatchiest bentgrass

A

velvet

50
Q

why is poa such a successful weed in bentgrass?`

A

prolific production of viable seeds under close mowing

51
Q

bentgrass that dollar spot in a big concern?

A

creeping

52
Q

very competitive grass in shade on tees?

A

poa annua

53
Q

diseases of Bermuda grass

A

spring dead spot/dollar spot/brown patch

54
Q

what factors affect actual height of cut?

A

bench setting/roller type/walk mower or triplex/firmness of turf

55
Q

latin binomial for African Bermuda grass?

A

cynadon transvalensis

56
Q

which bent grass is brown patch a major concern?

A

colonial

57
Q

common Bermuda ID characteristics?

A

stolons/rhizomes, hairy ligule, raceme seed head

58
Q

interspecific hybridization creates what

A

triploids-sterile, don’t produce seed

59
Q

problem with PRG and tall fescue mix?

A

big texture difference

60
Q

KBG is apomictic, what does that mean?

A

seed is an exact clone of mother plant

61
Q

how did poa triv get to north America?

A

from Europe in sheep shit, says Milton davis

62
Q

best way to irrigate?

A

deep and infrequent

63
Q

when should you apply heavy topdressing?

A

spring

64
Q

what condition encourages algae?

A

water. too much wetness

65
Q

best time to irrigate?

A

just before dew forms on grass

66
Q

grass that produces little to no thatch, only grass like this.

A

PRG

67
Q

should topdressing match the rate and development of thatch?

A

yes

68
Q

what PGRs reduce poa annua

A

trimmit, cutlass

69
Q

why use plant growth regulators

A

suppress seedheads, thicker denser turf, better playability, reduce clippings

70
Q

PRG seeding rate?

A

4-5lbs/1000

71
Q

Bermuda seeding rate?

A

1-1.5lbs/1000

72
Q

grass with good winter color in NJ

A

PRG, Poa triv

73
Q

bad winter coler in NJ?

A

any warm season grass

74
Q

tall fescue seeding rate?

A

8-10lbs/1000

75
Q

bentgrass seeding rate?

A

.25-1.5lbs/1000

76
Q

poa triv seeding rate?

A

1-1.5lbs/1000

77
Q

fine fescue seeding rate?

A

3-4lbs/1000

78
Q

zoysia seeding rate?

A

2-3lbs/1000

79
Q

centipede seeding rate?

A

4-6lbs/1000

80
Q

Ryegrass by Dr. Funk

A

manhattan

81
Q

dr. hurley starting to experiment with

A

seed bed covers

Agronomy (1 decks)

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