Quizzes 1-7
All quizzes in this course will be available for student completion until the last scheduled class meeting. True or False?
False
Bonus quizzes are 1 option for extra credit in this course. True or False?
False
Required notes for this course are available via class website, eLearning, and textbook. True or False?
False
A low maintenance turfgrass that is not used for high quality lawns because of its lack of density and unsightly seedheads is:
bahiagrass
Which of the following is not a warm-arid adapted turfgrass:
bentgrass
Which of the following is not a warm-arid adapted turfgrass?
bentgrass
Match each of the following turfgrasses with its geographic origin:
bermudagrass - south africa zoysiagrass -asia bahiagrass - south america kikuyugrass - east africa tall fescue - europe perennial ryegrass - europe, asia, and north america centipede grass - china carpet grass - north america
One pound of soil may contain ___________ of microorganisms.
billions
Certain future challenges for the turfgrass industry include all EXCEPT:
biofuels
Bermudagrass has:
both stolons and rhizomes
Sand shapes include all of the following EXCEPT:
flattened
Select ALL of the following that are warm-season turfgrass species.
kikuyugrass blue grama St. Augustinegrass centipedegrass bermudagrass
Which service industry had the second largest economic impact on turfgrass in 2007?
lawn services
What are the advantages of artificial turf?
low maintenance
What is the most shade tolerant warm season turf grass?
st. augustinegrass
Annual precipitation tends to increase from ______ to ______ in Texas?
west to east
Annual precipitation tends to increase from _______ to _______ in Texas?
west to east
The most heat tolerant of the following is:
zoysiagrass
Which of the following grasses is the most likely to present mowing difficulties:
zoysiagrass
How many million acres of turfgrass are there in the U.S.?
50
The Ideal soil pore space balance is:
50% air, 50% water
The optimum pH range for turfgrass is:________
6-7
Living microbial organisms typically comprise __________% of soil volume and are stimulated in activity by increased _________.
<1, oxygen
Match the following turfgrasses with their most accurate descriptions:
Buffalo grass - Native; Stoloniferous Blue Grama - Native; Bunch-type Inland Saltgrass - Native; Stoloniferous & Rhizomatous Centipede grass - Non-native; Stoloniferous Ryegrass - Non-native; Bunch-Type Zoysiagrass - Non-native; Stoloniferous & Rhizomatous
Select ALL of the following that are 'native' turfgrass species:
Curly Mesquite Buffalograss Inland Saltgrass Blue Grama
According to the most recent (latest) NTEP trials in College Station, the bermudagrass with the highest mean quality rating is:
DT-1
Performance traits across 'FAST' growing turfgrasses include:
Increased mowing requirements. Increased thatch problems. Decreased turf production costs.
According to the most recent (latest) NTEP trials in College Station, the bermudagrass with the highest leaf texture score is:
OKC 1163
Select ALL of the following turfgrass species that possess STOLONS:
St. Augustinegrass Bahiagrass Buffalograss Bermudagrass Kikuyugrass Centipedegrass Carpetgrass Zoysiagrass
Select ALL of the following that are 'cool-season' turfgrass species:
Tall Fescue Creeping Bentgrass Annual Bluegrass Annual Ryegrass KY Bluegrass
Which of the major warm-season turfgrasses are described as 'invasive' at the following website: http://www.invasive.org/
all of the above
Turfgrass acreage in the U.S. is greater than:
cotton
Which native turfgrass has the highest drought tolerance?
curly mesquite
According to the construction census, there has been a ________ in total turfgrass farms and a _______ in total turfgrass farm acres.
decrease, increase
Grasses deal with drought in a number of ways, including all of the following EXCEPT:
drought adaptation
Match each drought survival strategy with the response in turfgrasses:
drought avoidance - deeper roots drought escape - vegetative death after seed production drought tolerance - osmotic adjustment
3 to 5 tons of grass clippings are produced per acre per year from St. Augustinegrass. True or False?
false
All turfgrasses possess stolons and/or rhizomes. True or False?
false
An irreversible increase in size is called swelling.
false
Below-ground secondary lateral stems are called stomata.
false
Buffalograss has an intermediate growth form. True or False.
false
Buffalograss has the highest drought tolerance of any turfgrass. T or F?
false
C4 turfgrasses are favored over C3 turfgrasses in conditions of both high temperatures (> 85 deg. F) and increasing atmospheric CO2. True or False?
false
Centipedegrass was introduced into the US from Canada. True or False?
false
Growth is a change in form. True or False?
false
Hybrid bermudagrass is available via inexpensive seed. T or F?
false
In double fertilization, the fertilized egg develops into the embryo and the fertilized central cell develops into the roots. True or false?
false
Most turfgrasses utilized in the U.S. are native to North America. True or False?
false
Organic matter increases soil density. True or False.
false
Plant age, photoperiod, temperature, & management are all factors that influence rhizome and stolon growth in artificial turf.
false
Ryegrass is considered drought tolerant. T or F?
false
S.A.D. is a fungus. True or False?
false
Sand particle shape has no impact on soils. True or False
false
Sand, silt, loam, & clay are the primary classes of soil particles. True or False.
false
Sod sales have historically decreased during recessions. True or False?
false
Soil compaction decreases infiltration, erosion, and percolation. True or False.
false
The 'Cumulative/Total' grade column in eCampus' gradebook is all that's needed to accurately determine your final grade for the course. True or False?
false
There will be 3 required major exams in this course. True or False?
false
This course includes a cumulative FINAL exam. True or False?
false
Turfgrasses have no potential for utilization as biofuels or renewable bioproducts. True or False?
false
St. Augustinegrass requires a minimum of 40 inches of precipitation annually. True or False?
false - 35
What state produces the highest acreage of sod?
florida
Soil phases include all of the following EXCEPT:
fluid
What industry has the higest economic impact on turf grasses?
golf courses
Match each 'category' of important trait with specific responses seen in turfgrasses:
growth characteristic -bunch, intermediate, sod-forming uniformity - mowing cut cleanliness density - shoot number vs. internode length color - diseases/ nutrient status wear tolerance - tensile strength biotic stress tolerance - pests abiotic stress tolerance - drought seed/ sod production - commercial viability
All of the following are advantages of St. Augustinegrass EXCEPT
high cold tolerance
Turfgrasses increase:
home values
Turfgrasses reduce all of the following EXCEPT:
insects
High salt (Na) accumulation alters soil pH in a manner that decreases availability of the following plant nutrients:
iron calcium nitrogen magnesium
Which of the major warm-season turfgrasses are listed as a 'State Noxious Weed' in Texas at the following website: http://www.invasive.org/
none
Turfgrass utilization intersects with all of the following EXCEPT:
politics
Sod sales are most impacted by:
residential home construction
All of the following are examples of turf EXCEPT:
rosemary
Soil particles sized from largest to smallest are ordered as:
sand, silt, clay
Which of the following utilizes the most acres of turfgrass?
single-family households
Which of the following cannot normally be successfully established from seed:
st. augustinegrass
Warm-season (C-4) turfgrasses--in comparison to cool-season (C-3) turfgrasses—generally perform better with:
temperatures > 30 deg. C & atmospheric C02 < 340 ppm
The most common hybrid bermudagrass found on sportsfields and fairways, considered the 'industry standard' for warm-season sportsturf, is:
tifway
The most common hybrid bermudagrass found on sportsfields and fairways; it is considered the "industry standard" for warm season sportsturf.
tifway
A sprig is a stem with at least one node or crown and any attached roots or leaves.
true
Bentgrass can be a weed. True or False?
true
Bermudagrass can be weedy. True or False?
true
By 2020, it is anticipated that all turfgrass managers will be required to have a minimum of a 2 or 4 year degree to qualify for superintendent certification. True or False?
true
Cool season turf grasses are considered C3 ? True or False
true
Grass leaf margins, collars, ligules, and sheaths can be hairy.
true
Lower mowing heights induce tillering in turfgrasses.
true
Ryegrass is both cold and wear tolerant. True or False?
true
The grass embryo contains leaves & root.
true
