Turf Vocab Ch2 Flashcards
What rhizome like structure is maybe present in new turfgrass plant grown from seed?
Mesocotyl
Roots that develop during seed germination are called ….
Seminal or primary roots
What is the growing point atop an unelongated stem called?
Crown
What is commonly referred to as Mature Florets , that harvested from the inflorescence of flowering grass plant constitute.
Grass seed
The lower portion of the leaf , called the _________, is tightly rolled or folded around the main axis of the shoot.
Sheath
What are the claw like appendages that extend into two at the base of the leaf blade called?
Auricles
The upper portion of the leaf that is relatively flat and extends outward at angle form the sheath is the __________.
Blade or lamina
What is the light green or whiteish band on the outer side of the leaf , opposite of the ligule called ?
Collar
Secondary roots that arise from nodes along a stem are known as ?
Adventitious
A dry , Indehiscent one seeded- fruit with a thin pericarp fused to the seed coat is known as a _______?
Caryopsis
The upward movement of substances absorbed from the soil from the tip to the base of the plant is referred to as _______?
Basipetal transport
What is the process by which new aerial shoots emerge intravaginally from auxiliary buds ?
Tillering
What type of condition exist when the developing plant is entirely dependent on the endosperm for its food?
Heterotrophic conditions
What is the time interval between the appearance of successive leaves called ? ; usually measured in days.
Plastochron
The flowering portion of the grass is called the ________?
Inflorescence
A subsequent movement of these substances from the base of the plant to the leaves is known as ________?
Acropetal transport
A raceme has spikelets borne on individual flower stalks , called _______?
Pedicels
What is the asexual process called that involves seed production without actual fusion of a male and female gametes in developing the embryo ?
Apoximis
What is the sum of the chemical and energy transformations that occur in living organisms?
Metabolism
What type of condition can occur where turf grasses are growing in severely compacted or waterlogged soils, oxygen for root respiration may be so deficient that transport of materials within the roots are restricted?
Wet wilt
