Pennsylvania State University TURF 100 QUIZ #7 1)Edaphology is: The science that studies the effect of plants on soils

Pennsylvania State University

TURF 100

QUIZ #7

1)Edaphology is:

1. The science that studies the effect of plants on soils.
2. The science that studies the interaction of soil and other growing media on living organisms including plants.
3. The science that studies turf interaction with soil and other growing media.
4. The science that studies physical properties of growing media.

2. - Finer textured soils that contain more clay typically hold less water than coarser textured sandy soils.

1. True
2. False

3. - Which is the correct order in terms of particle size? (from finest to coarsest)

1. clay, silt, sand
2. silt, very fine sand, clay
3. very fine sand, silt, clay
4. sand, clay, silt

4. - In which situation it is more likely to find a perched water table?

1. When a fine-textured soil underlies a coarse-textured soil.
2. When precipitation exceeds the rate of infiltration into the soil.
3. When precipitation exceeds transpiration of a turfgrass.
4. When a coarse -textured soil underlies a fine-textured soil.

5. - In which situation it is more likely to find a temporary water table?

1. When a fine-textured soil underlies a coarse-textured soil.
2. When precipitation exceeds the rate of infiltration into the soil.
3. When precipitation exceeds transpiration of a turfgrass.
4. When a coarse -textured soil underlies a fine-textured soil.

6. – Most of the turfgrass seed volume, i.e. the bulk of the seed, is made up of which of the following?

1. embryo
2. seed coat
3. endosperm
4. aleurone layer

7. – Which of the following turfgrass species has the largest seed size?

1. perennial ryegrass
2. red fescue
3. Kentucky bluegrass
4. creeping bentgrass

8. - Which of the following turfgrass species has the smallest seed size?

1. perennial ryegrass
2. red fescue
3. Kentucky bluegrass
4. creeping bentgrass

9. – A condition when the developing seedling is dependent on the endosperm for its food supply is known as which of the following:

1. autotrophic
2. heterotrophic
3. heterozygous
4. autopolyploid

10. – The northeastern United States has a temperate continental climate (Dc). Thus, it is somewhat surprising, but perhaps not unexpected, that the cool-season C3 turfgrass species which initially colonized the northeast US originally came from which climate?

1. temperate continental (Dc)
2. temperate oceanic (Do)
3. subtropical humid (Cf)
4. subtropical dry summer (Cs)

11. –Guttation exudations containing various minerals and simple sugars are often excreted from turfgrass leaf blades during the night time of summer months. As such, which of the following are true?