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RESPONSE IN PLANT - Coggle Diagram
RESPONSE IN PLANT
APPLICATION OF
PHYTOHORMONE IN AGRICULTURE
CYTOKININ
Tissue culture technique
ABSCISIC ACID
Inhibit growth
GIBBERELLIN
Treats mutated
dwarf plants to grow
normally in height
ETHYLENE
Promote maturation
quickly
AUXIN
Encourage growth
PHYTOHORMONE
Chemical substances that stimulate and
coordinate response in plants
TYPE OF PHYTOHORMONES
Cytokinin
Abscisic Acid
Gibberellin
Ethylene
Auxin
EFFECT OF AUXIN
GROWTH RESPONSE
STIMULATE : Cell elongation in SHOOTS
INHIBIT : Cell elongation in ROOTS
PLANT RESPONSE
PHOTOTROPISM
Concentration of AUXIN is higher
in shaded region cause plant to grow
TOWARDS sunlight
GEOTROPISM
AUXIN cause the root to
bend downwards
TYPES OF RESPONSES
TROPISM
Slow response
Hydrotropism
Water
Phototropism
Light
Geotropism
Gravity
Chemotropism
Chemical
Thigmotropism
Touch
NASTIC
Quick response
Nyctinasty
Circadian rhythm
(onset of darkness)
Thermonasty
Temperature
Seismonasty
Mechanical stimulus
(shock, wind)
Thigmonasty
Photonasty
Light