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Turfgrass Management, 6/e

Chapter 3

Problemset

This activity contains 10 questions.

The loosely arranged cells enclosed within the upper and lower epidermis of a leaf are:

mesophyll cellsmacrophyll cellsmegaphyll cellsmicrophyll cells

The large cells responsible for folding and unfolding (or rolling and unrolling) grass leaf blades are called:

bulliform cellssheath cellsbundle cellsfilliform cells

Pennsylvania is located in which climate zone?

tropictemperatesubtropicsubarctic

Within the grass family, there are approximately:

6 genera25 subfamilies7500 species600 tribes

The warm-season turfgrasses belong to these subfamilies:

panicoid and agrostoidfestucoid and eragrostoidpanicoid and eragrostoidfestucoid and panicoid

Tall fescue is distinguished by the following features:

rolled vernation, short auricles, and ridged abaxial leaf bladesrolled vernation, short auricles, and ridged adaxial leaf bladesbunch-type growth, folded vernation, and coarse leaf textureshort auricles, folded vernation, and keeled abaxial leaf blades

The temperature range for optimum shoot growth of the festucoid turfgrasses is:

60-75 degrees F50-65 degrees F70-85 degrees F80-95 degrees F

Which of the following turfgrasses are all in the subfamily Festucoideae?

St. Augustine, centipedegrass, ryegrassbluegrass, bentgrass, fescuesbuffalograss, bahiagrass, bentgrassbluegrass, ryegrass, zoysiagrass

A climate with average temperatures above 50 degrees F for at least 8 months is:

continentalsubtropicalsubartictemperate

A climatic type characterized by cold winters and warm summers is:

temperate oceanicsubtropical dry-summersubtropical humidtemperate continental

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