Pennsylvania State University

TURF 100

Quiz #12

1)What two morphological traits distinguish bluegrasses from all other turfgrass species?

1. 1. the width of the tiller and the width of the leaf blade
   2. boat-shaped tip and train-track midribs
   3. the softness of the leaf blade and the surface appearance of the leaf surface
   4. the name “bluegrass” is reserved for only bluegrass species
   5. the presence of rhizomes and stolons

2. How would you characterize the texture of fine fescue:
   1. pointed
   2. hairy
   3. fine
   4. coarse
   5. wide

3. In order to distinguish the cultivars of tall fescue and perennial ryegrass used for turf from those used for forage, we refer to them as:
   1. dense-types
   2. fine-types

1. 3. lawn-types
   4. turf-types
   5. none of the above

4. The plant reproductive system found in Kentucky bluegrass is often defined as “seed without sex” and is technically known as which of the following.
   1. selfing
   2. outcrossing
   3. apomixis
   4. sterility
   5. sprigging

5. The transition zone in the U.S. is an area where both warm-season grasses and cool-season grasses successfully grow at their optimum level.
   1. true
   2. false

6. Which turfgrass species is a standard recommendation for dry shade?
   1. Kentucky bluegrass
   2. perennial ryegrass
   3. tall fescue
   4. Poa trivialis
   5. fine fescue

7. Which turfgrass species is a standard recommendation for wet shade?
   1. Kentucky bluegrass
   2. perennial ryegrass
   3. tall fescue
   4. Poa trivialis
   5. fine fescue

8. Which of the following turfgrasses have C3 photosynthesis?
   1. Kentucky bluegrass
   2. perennial ryegrass
   3. tall fescue
   4. creeping bentgrass
   5. all of the above

9. One of the easiest ways to identify cool-season turfgrasses is that they all have a hairy ligule.
   1. true
   2. false

10. Which morphological trait best distinguishes the Red fescue complex from the Sheep fescue complex.
    1. leaf tip
    2. leaf sheath