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Abscisic Acid

Ethylene caus...

Question

Ethylene causes apical hook formation in dicot seedlings, promotes senescence and abscission of plant leaves and flowers.

A

True

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B

False

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Solution

The correct option is A True

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Similar questions

Q. Ethylene causes apical hook formation in dicot seedlings, promotes senescence and abscission of plant leaves and flowers.

Q. Read the given statements to identify the phytohormone that performs these functions.

(i) Horizontal growth of seedlings, swelling of the axis and apical hook formation in dicot seedlings.
(ii) Promoting senescence and abscission of leaves and flowers.
(iii) Breaking seed and bud dormancy.
(iv) Initiating germination in peanut seeds.
(v) Sprouting of potato tubers.

Study the following statements

1.It promotes abscission and senescence of plant organs

2.It stimulates flowering for synchronized fruit set in pineapple.

3.It induces apical hook formation in dicot seedlings

4.It enhances respiration rate during ripening of fruits

The above are the physiological effects of a

Q. Which of the following statements regarding ethylene is/are correct?
I. Ethylene influences the growth of seeds and seedlings.
II. It helps in breaking the dormancy of seeds.
III. It promotes the formation of apical hook in dicots, germination and horizontal growth of seedlings.

Q. Match the terms to these definitions.
Abscission, apical dominance, biological dock, circadian rhythm, vernalization, dormancy, ethylene, germination, gibberellin, geotropism, photoperiodism, senescence
.......... Dropping of leaves, fruits, or flowers from a plant.

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