agronomy final review Flashcards by Kyle Teel

species with rhizomes

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

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where did bermuda grass originate

africa

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fine fescue species with best red thread tolerance

hard fescue

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mixture of seeds for low maintenance rough

KBG, fine fescue

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has rhizomes and is susceptible to powdery mildew in the shade

KBG

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reproduces by apomixes

KBG

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flouresence test

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

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where did centipede grass originate

asia

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

buffalo

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

seashore paspalum

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big weakness of turf type rye

winter/cold stress

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warm season species with interspecific hybridization

bermuda

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what is a triploid?

comes from interspecific hybridization, sterile and does not produce seeds

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KBG seeding rate?

2-3lbs/1000

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

yes

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identified by opposite leaf arrangement, light green thick canopy

St.Augustine

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5 states with seed laws/regulations

Delaware, PA, NJ, Virginia, Maryland

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chewings fescue growing habit

sprouts by tillers

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why is spring time bad for establishing seed

cool soil temperatures

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fescue by Dr. Funk

rebel

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most shade tolerant warm season grass?

zoysia

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how are warm season grasses typically propagated?

sprigging/sod

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first documented Bermuda grass program

tifway- Glen Burton

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multiplication factor for sod or UGS test

10x

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what is certification?

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

endophytes are transmitted by?

seed

endophytes do not control what

grubs

Tall fescue by Dr. Funk

rebel

origon of cool season grasses?

europe

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

Bahia grass

can be irrigated with gray water?

seashore paspalum

PRG disease issues?

gray leaf spot/pythium

hard fescue mowing height?

above 1/2"

name 5 cool season grasses

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

name 5 warm season grasses

buffalo, Bermuda, zoysia, st Augustine, centipede

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

false, blue and bent don't have endophytes

does KBG have good cold hardiness?

yes

hard fescue growth habit?

bunch type-no rhizomes

species that produce seedheads throughout the season?

poa, bermuda

deepest rooting of cool season grasses?

tall fescue

bentgrass in a KBG seed bag, problem or not?

yes it is a problem

tetrazolium test.

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

name 3 species without rhizomes

PRG, tall fescue, hard fescue, chewings fescue

KBG in a PRG seed bag, problem or no?

no problem

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

yes, problem

PRG winter tolerance?

bad

species in south german bent?

colonial, creeping, velvet

best way to get speed on greens?

lightweight roll, topdress

thatchiest bentgrass

velvet

why is poa such a successful weed in bentgrass?`

prolific production of viable seeds under close mowing

bentgrass that dollar spot in a big concern?

creeping

very competitive grass in shade on tees?

poa annua

diseases of Bermuda grass

spring dead spot/dollar spot/brown patch

what factors affect actual height of cut?

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

latin binomial for African Bermuda grass?

cynadon transvalensis

which bent grass is brown patch a major concern?

colonial

common Bermuda ID characteristics?

stolons/rhizomes, hairy ligule, raceme seed head

interspecific hybridization creates what

triploids-sterile, don't produce seed

problem with PRG and tall fescue mix?

big texture difference

KBG is apomictic, what does that mean?

seed is an exact clone of mother plant

how did poa triv get to north America?

from Europe in sheep shit, says Milton davis

best way to irrigate?

deep and infrequent

when should you apply heavy topdressing?

spring

what condition encourages algae?

water. too much wetness

best time to irrigate?

just before dew forms on grass

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

PRG

should topdressing match the rate and development of thatch?

yes

what PGRs reduce poa annua

trimmit, cutlass

why use plant growth regulators

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

PRG seeding rate?

4-5lbs/1000

Bermuda seeding rate?

1-1.5lbs/1000

grass with good winter color in NJ

PRG, Poa triv

bad winter coler in NJ?

any warm season grass

tall fescue seeding rate?

8-10lbs/1000

bentgrass seeding rate?

.25-1.5lbs/1000

poa triv seeding rate?

1-1.5lbs/1000

fine fescue seeding rate?

3-4lbs/1000

zoysia seeding rate?

2-3lbs/1000

centipede seeding rate?

4-6lbs/1000

Ryegrass by Dr. Funk

manhattan

dr. hurley starting to experiment with

seed bed covers