Question

list the functions of different plant hormones

Answer 1

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here is your answer..

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Plant Hormones are the plant growth regulators. They require in small amount but necessary for functioning of Plants.

There are several Plant Hormones classes, namely, Auxin, Cytokinin, Gibberellin, Abscisic Acid, Ethylene.

Here are the functions of plant hormones in short.

Functions of Auxin : Cell enlargement, apical dominance, prevention from bending; promote xylem differentiation, healing of wounds of plants.

Applications of Auxin include - root initiation in callus during plant tissue culture, application of auxins to induce parthenocarpy etc.

Function of Cytokinin : promote cell division, apical dominance, delay in senescenes ( aging ), phloem transport, accumulation of salts in cells, production of female flowers, increase resistance to extreme temperatures and diseases.

Applications of Cytokinin include - stem initiation in callus during plant tissue culture, disease resistant varieties in genetically modified crops

Functions of Gibberellin : promote increase in fruit size, inter-nodal elongation, seed germination

Applications of Gibberellin include - dose of Giibberellin during parthenocarpy, production of male flowers on genetically female plants, breaking dormancy of seed, bud, tuber etc.

Functions of Abscisic Acid : abscission of leaves, reduce transpiration, inhibit cambium activity, bud dormancy in seed during winter, seed development and maturation, induce flowering in some SDPs, synthesis of carotenoids in green organs

Functions of Ethylene : inhibit stem elongation; promote fruit ripening, increase girth of stem, speed of senescence, abscission of leaves

Applications of Ethylene - artificial ripening of fruits, sprouting of storage organs.

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Answer 2

your answer is here

There are many plant hormones

Auxin
Gibberelin
Cytokinins
Absciric acid

Auxin is present in the stem

FUNCTION OF AUXIN

It helps in the growth of stem.

when light is coming from one side of the plant, auxin diffuses towards the shady side.


Gibberelin

It is present in the leaves of the plant.

FUNCTION:-

It helps to grow.

Cytokinin

It helps in promoting cell division.

Absciric acid:-

It helps in removing dead leaves from the plants.


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