Botany CH7 control of growth and development

[G: "to excite"] an organic substance produced in small amounts and transported to sites where it controls growth and development processes

the condition of a plant when grown in darkness; its stem is pale and elongated, the leaves are undeveloped

[G: tropos, "turn"] a growth curvature of a plant part caused by some external stimulus such as light or gravity

curvature of a plant organ in response to light

[G: "to increase"] a plant hormone that principally controls cell elongation

a plant hormone regulating several processes including internode elongation and cell enlargement

growth of a plant organ in response to gravity; most roots = positive geotropism, most stems = negative geotropism

[G: dia, "across"] horizontal growth of a plant part

[G: plagios, "oblique"] growth of a plant at an angle

[G: thigma, "touch"] a growth response to touch

[G: nastos, "pressed close"] a movement of a plant part (such as a leaf) not caused by an external stimulus

[L: "to cut off"] the controlled separation of leaves, flowers and fruit in plants

[G: kytos, "container," "a cell"; kinesis, "movement"] a plant hormone primarily stimulating cell division

Benzyl Adenine - keeps plants green

a layer of cells at the base of a leaf petiole, flower, or fruit stalk, the weakening of which causes the organ to separate from the plant

a root arising in an unexpected position, such as from a leaf

a method of plant propagation in which adventitious roots are developed on an intact plant before the rooted section is removed

a synthetic chemical causing leaves to prematurely shed

a synthetic chemical causing the shedding of immature flower buds

a chemical substance slowing or inhibiting plant growth

any chemical that, when applied to a plant, inhibits growth or kills

[L: "belonging to spring"] a low temperature treatment promoting flowering

the rapid growth of a stem prior to flowering

the initiation of flowering in response to relative lengths of day and night

a plant in which flower formation is not controlled by photoperiodism

the maximum day length a short-day plant and a minimum day length a long-day plant require to initiate flowering

the minimum vegetative size a plant must achieve before it is capable of flowering

to initiate a physiological process as a result of being subjected to a particular photoperiod

Crassulacean Acid Metabolism; plants in which stomates open at night, storing oxygen and CO₂

papery cover; tunicate bulbs

peak of respiration

a growth-inhibiting hormone

hypothetical name for a flowering hormone

a gaseous plant hormone produced in abundance by ripening fruits and damaged tissues

deoxyribonucleic acid; the substance of which genes are made; the carrier of genetic information in cells