What would happen if gibberlin is added to rice seedling.

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Solution

Gibberellic acid (GA3) is a phytohormone that promotes cell growth and cell elongation. So, its application causes increase in stems and inter nodal length and also extensive root system development. Thus, when GA3 is applied on the rice seedlings then these seedlings will also exhibit internode elongation and increase in height.

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Q. Value based questions.
What would be expected to happen if:

G A_{3}

is applied to rice seedlings.

Question 16

Gibberellins were first discovered in Japan when rice plants were suffering from bakane (the foolish seedling disease) caused by a fungus Gibberella fujikuroi.
Give two functions of this phytohormone.

Which property of gibberellin caused foolish seedling disease in rice?

Q. What would be expected to happen if (a)

G A_{3}

is applied to rice seedlings. (b) Dividing cells stop differentiating. (c) A rotten fruit gets mixed with unripe fruits. (d) You forget to add cytokinin to the culture medium.

What would be expected to happen if:

(a) GA₃ is applied to rice seedlings

(b) Dividing cells stop differentiating

(d) You forget to add cytokinin to the culture medium.

Q. What would be expected to happen if:
(a) GA

_{3}

is applied to rice seedlings.
(b) Dividing cells stop differentiating.
(c) A rotten fruit gets mixed with unripe fruits.
(d) You forget to add cytokinin to the culture medium.

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