aluerone - Answer-Area of a grass seed that contains enzyme that convert starch from the endosperm into sugar for the embryo
auricle - Answer-A claw-like appendage projecting from the collar of the leaf.
blade - Answer-the flat portion of the grass leaf- primary are where photosynthesis occur...
Turf Grass Management Exam Questions
and Answers
aluerone - Answer-Area of a grass seed that contains enzyme that convert starch from
the endosperm into sugar for the embryo
auricle - Answer-A claw-like appendage projecting from the collar of the leaf.
blade - Answer-the flat portion of the grass leaf- primary are where photosynthesis
occurs
blend, seed - Answer-A blend of grass seeds containing only one species of grass, but
multiple subspecies (also called varieties or cultivars). Seed blends are highly
adaptable, provide different germination speeds and the variety selection can be
tailored to the strengths and weaknesses of a lawn. The blend can be formulated to
grow grass better in shady or sunny areas. Blended lawns can also help prevent
damage from some lawn diseases.
bunch type growth habit - Answer-plant development in the absence of rhizome and
stolon production; a non-spreading grass
bunch grass - Answer-a non-spreading grass which lacks rhizomes and stolons
bushel - Answer-a volume of plant material that equals 1.25 cubic ft- also referred to as
a texas bushel. for turfgrass sprigs, a Georgia bushel is used to describe the amount of
sprigs harvested from q square yard of sod
certified seed or plants - Answer-usually the progeny or increases of registered or
foundation stock maintained so as to preserve genetic purity. the material is inspected
by a certifying agency, usually the State Crop Improvement Association
Chlorophyll - Answer-the green pigment in leaves
Coleoptile - Answer-the primary growing point for the first shoot in a grass seed
coleorhiza - Answer-the primary growing point for the first root in a grass seed
cool-season - Answer-A cool-season turfgrass species has optimum growth at
temperatures between 60 and 75°F. Cool-season grasses include creeping bentgrass,
fine fescue, tall fescue, Kentucky bluegrass, annual ryegrass, and perennial ryegrass.
Creeping(spreading) growth habit - Answer-plant development at or near the soil
surface that results in lateral spreading by rhizomes and/or stolons
, crown - Answer-The primary growing point of grasses. The crown refers to the part of a
plant where the root and stem meet. Having a healthy crown is essential to growing
grass. It is the most important part of the grass plant because it is the origin point for
leaves,
culm - Answer-a stem of a grass plant
cultivar - Answer-a cultivated variety of species. ex) k-31
cuticle - Answer-a thin, waxy layer on the outer wall of epidermal cells consisting
primarily of wax and cutin
damping off - Answer-a disease of seeds or young seedlings caused by fungi, usually
occurring under wet conditions
density - Answer-the number of plants per a given unit of soil- an important trait for
turfgrass quality
dormancy - Answer-resting stage through which the plant or ripe seeds usually pass
and during which nearly all manifestations of life come to an almost complete standstill
dormant - Answer-A condition of significantly reduced activity where little if any growth
occurs and where rates of physiological activities, like photosynthesis, are minimal or
non-existent.
ecosystem - Answer-The interaction of turfgrass with other plants, animals and their
surrounding environment.
elasticity - Answer-The ability of turfgrass leaves to bounce back after being
compressed. Conditions such as frost or drought can significantly reduce the elasticity
of the turf
emergence - Answer-The stage of germination and growth at which shoots appear at
the soil surface
endosperm - Answer-The portion of a grass seed that contains carbohydrates that are
the energy reserves for the early germination process
environment - Answer-The surroundings and conditions in which your lawn, trees and
other plants live. On a broader scale, the circumstances, objects, or conditions by which
one is surrounded.
enzyme - Answer-a protein produced by living cells that can catalyze a specific organic
reaction
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