PLANT GROWTH HORMONES
GROWTH PROMOTERS GROWTH INHIBITOR DUAL
i IM
AUXIN GIBBERILIN CYTOKININ ABSCISSIACID ETHYLENE
D Chemical Nature >
-
Indole compound >
-
Terpenes >
- Purine Derivative
CAdenine)
>
-
Carotenoid >
-
Gaseous
Derivative Hormone
Acetyl Col
2) Precursor
> E Violaxanthin Methionine
Tryptophan T-RNA
-
>
-
> >
-
>
-
-
Mevalonic Acid CXanthophyu)
3) Discovery >
-
Charles Darwin >
-
"Kurosawa
-
> Skoog 3
Cin rice plant
Francis Crick
-
4) Isolation > FW
-
. Went
in
.
Avina Sativa
>
-
Yabuta E
Samuki from the
=> Miller et al
Herring Fish Cderivative
o KITENin
of purine E
pyrimidine)
COATS)
Fungi-Gibberella Talintst Naturally occuring Cytoin
s
Fujikori
5) Physiological ① Apical dominance
-
promotes bud
growth of apical ① Internodal ① Cell division
(Along Auxin)w QPromotes Senesense
·
① Promotes Senesense
②
elongation "Abscission
-
Inhibits Sunillary bed
role ② Promotes Lateral
Fruit
② Promotes ② Seed Germination Dominance
Counteracts
③
ripening
Breake domancy
the ③
apical dominance)
Abscission Antiaging hormone elongation - submerged aquality a
Partialeged
e
of old parts
Delays Senesense
-
③Bolling in Rosette
③ Cell Division Climateric EffectDuringripeninasg
Along plants
cytokinin
④ Stress Hormoormancy ⑤ Root hair formation
-
w
⑨ Cell Elonation ⑥ Flowering in Mango E
& ⑤ H20l > Stomata
-
pineapple
⑤ Xylem differentiation Close ⑦ Breaks dormancy in
Ground nut
⑥ Delays Senesense ⑤ Anti transpiration ⑤ Feminising effect in
Cucumber
① Juvenile Conifers (Pinus)
6) CommercialD Tissue
eg
NAA IBA
Culture
frooting
② Increase in
Sugarcane
& Increase shelf ① ETEPHONE-Artificial
stationof
life of
Cut ethylene
yield
↳
,
>
-
20 tonn per hectar
Role ② Parthenocarpy
Induce ③ ↑ Malting Fruits
& Delayed Ripening Vega RIPENING
③ Flowering pineapple in
Litchi ⑤ Es
Shape of flowers & explant ②
Thinning of Fruit in
Fruits cyt Auxin > Callus
⑨
-
=
Weedicide 2, 4-D ⑥ of Cherry & Coconut
length Cyt)Auxin > Shoot
-
↑ grape
-
Charrow Spectrum) Stem Cyt(Auxin > Root -
② Masculine effect grow
⑤ Agent Orange in Cucumber
③
2
, UD + 2, 4 , 6-T + defdiation ⑧ Induces
LDP under
flowering Feminising Effect
in SD
Conditions
7) Avena Curvature
Bioessay test
by FW
. Went
2- Amylase Cotton/Bean Triple Response
Explant test /Ethylene
Barley G
.
Endosperm
Ded
Y
test is
stem
growth
GROWTH PROMOTERS GROWTH INHIBITOR DUAL
i IM
AUXIN GIBBERILIN CYTOKININ ABSCISSIACID ETHYLENE
D Chemical Nature >
-
Indole compound >
-
Terpenes >
- Purine Derivative
CAdenine)
>
-
Carotenoid >
-
Gaseous
Derivative Hormone
Acetyl Col
2) Precursor
> E Violaxanthin Methionine
Tryptophan T-RNA
-
>
-
> >
-
>
-
-
Mevalonic Acid CXanthophyu)
3) Discovery >
-
Charles Darwin >
-
"Kurosawa
-
> Skoog 3
Cin rice plant
Francis Crick
-
4) Isolation > FW
-
. Went
in
.
Avina Sativa
>
-
Yabuta E
Samuki from the
=> Miller et al
Herring Fish Cderivative
o KITENin
of purine E
pyrimidine)
COATS)
Fungi-Gibberella Talintst Naturally occuring Cytoin
s
Fujikori
5) Physiological ① Apical dominance
-
promotes bud
growth of apical ① Internodal ① Cell division
(Along Auxin)w QPromotes Senesense
·
① Promotes Senesense
②
elongation "Abscission
-
Inhibits Sunillary bed
role ② Promotes Lateral
Fruit
② Promotes ② Seed Germination Dominance
Counteracts
③
ripening
Breake domancy
the ③
apical dominance)
Abscission Antiaging hormone elongation - submerged aquality a
Partialeged
e
of old parts
Delays Senesense
-
③Bolling in Rosette
③ Cell Division Climateric EffectDuringripeninasg
Along plants
cytokinin
④ Stress Hormoormancy ⑤ Root hair formation
-
w
⑨ Cell Elonation ⑥ Flowering in Mango E
& ⑤ H20l > Stomata
-
pineapple
⑤ Xylem differentiation Close ⑦ Breaks dormancy in
Ground nut
⑥ Delays Senesense ⑤ Anti transpiration ⑤ Feminising effect in
Cucumber
① Juvenile Conifers (Pinus)
6) CommercialD Tissue
eg
NAA IBA
Culture
frooting
② Increase in
Sugarcane
& Increase shelf ① ETEPHONE-Artificial
stationof
life of
Cut ethylene
yield
↳
,
>
-
20 tonn per hectar
Role ② Parthenocarpy
Induce ③ ↑ Malting Fruits
& Delayed Ripening Vega RIPENING
③ Flowering pineapple in
Litchi ⑤ Es
Shape of flowers & explant ②
Thinning of Fruit in
Fruits cyt Auxin > Callus
⑨
-
=
Weedicide 2, 4-D ⑥ of Cherry & Coconut
length Cyt)Auxin > Shoot
-
↑ grape
-
Charrow Spectrum) Stem Cyt(Auxin > Root -
② Masculine effect grow
⑤ Agent Orange in Cucumber
③
2
, UD + 2, 4 , 6-T + defdiation ⑧ Induces
LDP under
flowering Feminising Effect
in SD
Conditions
7) Avena Curvature
Bioessay test
by FW
. Went
2- Amylase Cotton/Bean Triple Response
Explant test /Ethylene
Barley G
.
Endosperm
Ded
Y
test is
stem
growth
