Term
|
Definition
a hormone in plants that helps regulate the growth of buds and
the germination of seeds (651) |
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Term
|
Definition
the area at the base of a leaf petiole where the leaf breaks off
from the stem (651) |
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Term
|
Definition
an herbicide comprised of 2,4-D and another auxin that was
used to defoliate jungles during the Vietnam war (649) |
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Term
|
Definition
a plant growth pattern in which branches near the shoot tip
are shorter than branches farther from the shoot tip (649) |
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Term
|
Definition
a plant growth pattern in which branches near the shoot tip
are shorter than branches farther from the shoot tip (649) |
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Term
|
Definition
| a plant hormone that regulates cell elongation (647) |
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Term
|
Definition
| a plant hormone that regulates cell elongation (647) |
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Term
|
Definition
| a plant having a two-year life cycle (658) |
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Term
|
Definition
| the rapid lengthening of internodes caused by gibberellic acid (658) |
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Term
|
Definition
| plant growth in response to a chemical (654) |
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Term
|
Definition
a species-specific requirement for darkness during the
flowering process (656) |
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Term
|
Definition
| plant hormones that promote cell division (651) |
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Term
|
Definition
| a plant unaffected by day length (656) |
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Term
|
Definition
a synthetic chemical that breaks down to release ethylene gas; used
to ripen fruit (650) |
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|
Term
|
Definition
a gaseous hormone produced by various parts of plants and released
into the air (650) |
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Term
|
Definition
in leaves, color changes from a lack of chlorophyll caused by a
photoperiodic response and temperature changes (656) |
|
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Term
|
Definition
a plant hormone that, among other actions, stimulates bolting and
cessation of dormancy (650) |
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Term
|
Definition
| a plant growth response to gravity (654) |
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Term
|
Definition
| a hormone that stimulates or inhibits plant growth (647) |
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Term
|
Definition
| a chemical that retards plant growth (651) |
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Term
|
Definition
chemical messengers that allow a plant to respond to its
environment (650) |
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Term
|
Definition
(IAA) an auxin produced in actively growing regions of
plants (647) |
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Term
|
Definition
a plant that flowers when exposed to day lengths longer than
the plant’s critical length (656) |
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|
Term
|
Definition
(NAA) synthetic auxin used to promote root
formation on stem and leaf cuttings (648) |
|
|
Term
|
Definition
a type of plant movement that is independent of the direction
of the stimuli (654) |
|
|
Term
|
Definition
plant movement in response to the daily cycle of light
and temperature (655) |
|
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Term
|
Definition
| a plant response to changes in day length (656) |
|
|
Term
|
Definition
| plant growth in response to light (652) |
|
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Term
|
Definition
| a pigment in plants that monitors changes in day length (657) |
|
|
Term
|
Definition
a plant that flowers when exposed to day lengths shorter than
the plant’s critical length (656) |
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|
Term
|
Definition
the phototropism of leaves or flowers as they follow the sun’s
movement across the sky (653) |
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|
Term
|
Definition
| an important, synthetic auxin used as an herbicide (649) |
|
|
Term
|
Definition
a type of nastic movement that occurs in response to
touching or shaking a plant (654) |
|
|
Term
|
Definition
a plant’s growth response to touching a solid object, as in the
tendrils of vines that coil when they touch an object (653) |
|
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Term
|
Definition
| plant movement toward or away from an environmental stimulus (652) |
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Term
|
Definition
the requirement that some seeds or spores be exposed to cold
before they can germinate (658) |
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