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Hydrotropism

name the horm...

Question

name the hormone that is needed to increase the height of dwarf plant is it auxin or gibberellin

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Solution

Dear Student,

Gibberellin is the plant hormone which is used for stem elongation in dwarf plants. This is known as bolting.

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Similar questions

Q. What are the exact functions of the plant hormones(Auxin,Cytokinins,Gibberellins,Abscisic acid)?

Q. The dwarf variety of garden pea plants are now known to have a mutation in a gene needed for synthesis of gibberellin.

F_{1}

plant obtained by Mendel from the tall (TT)

\times

dwarf (tt) cross were tall.
Which of the following inferences can be drawn from the given information?
(i) Gibberellin causes elongation of stems.
(ii) Heterozygous (Tt) plants produce the same amount of gibberellin as homozygous dominant (TT) plants.
(iii) Gibberellin induces production of auxin.
(iv) Mutation may have occurred in a gene producing an enzyme.

Q. Which parts of the plant produce gibberellin? State two functions of this hormone and mention why it was named gibberellin?

Q. Choose the right from the following.
i. In light, hormone auxin, helps the cells to grow longer in plants .
ii. Plant hormone gibberellins helps in growth of a stem.
iii. Cytokinins inhibits cell division.
iv. Abscisic acid promote growth in plants.

Name the following :

(a) Hormone that stimulates growth by cell-division.

(b) Growth retarding hormone in plants.

(c) Main auxin found in most plants.

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