Question

what are plant hormone and give various types of plant hormone​

Answer 1

Answer:

Plant hormones (also known as phytohormones) are organic substances that regulate plant growth and development. Plants produce a wide variety of hormones, including auxins, gibberellins (GA), abscisic acid (ABA), cytokinins (CK), salicylic acid (SA), ethylene (ET), jasmonates (JA), brassinosteroids (BR), and peptides.

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Answer 2

$\huge{\mathfrak{\overline{\underline{\underline{\blue{Answer}}}}}}$

Plant Hormone - The chemical compounds released by stimulated cells for control and coordination in plants are called plant hormones or phytohormones.

$\bold{\:\:\:\:\:\:Auxin - \:controls \:growth}$

$\bold{\:\:\:\:\:\:Gibberellins - \:helps \:growth \:in \:stem}$

$\bold{\:\:\:\:\:\:Abscisic acid - \;Inhibits \:growth, \:wilting \:of \:leaves}$

$\bold{\:\:\:\:\:\:Cytokinin - \:promotes \:cell \:division}$

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More information :

$\bold\pink{Auxin}$ : It helps in cell enlargement, apical dominance. It also prevents from bending, promotes xylem differentiation and healing of plant wounds.

$\bold\red{Cytokinin}$ : It promotes cell division, apical dominance, delay in aging, phloem transport, accumulation of salts, female flowers production. It helps in increasing the resistance to extreme temperatures and diseases.

$\bold\orange{Gibberellins}$ : This promotes the fruit size, inter-nodal elongation and seed germination.

$\bold\purple{Abscisic \:acid}$ : It helps in the abscission of leaves and helps in reducing transpiration, inhibiting cambium activity and icreasing the bud dormancy in seed during winter. It also improves the seed development and maturation, induces flowering and helps in synthesis of carotenoids in green organs.

$\bold\green{Ethylene}$ : It inhibits stem elongation, promotes fruit ripening, increases the girth of the stem, reduces the speed of senescence and abscission of leaves.