Assertion(A): ABA helps seed to withstand desiccation and other factors unfavorable for growth.

Reason(R): ABA induces seed dormancy.

Both A & R are true and R explains A

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Both A & R are true and R does not explain A

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A is true and R is false

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Both A & R are false

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Solution

The correct option is A
Both A & R are true and R explains A

ABA plays important role in seed development, maturation and dormancy. By inducing dormancy it helps seed to withstand desiccation and other factors unfavorable for growth.

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Similar questions

By inducing dormancy, abscisic acid helps seeds to withstand extreme conditions.

Q. Read the given statements and select the option that is/are incorrect ones.

(i) Cytokinin is primarily concerned with cell division.
(ii)

C_{2} H_{4}

breaks seed and bud dormancy.
(iii) ABA stimulates the opening of stomata.
(iv)

C_{2} H_{4}

initiates germination in peanut seeds, sprouting of potato tubers.
(v) ABA is synergistic to GA.

It's written that ABA hormone inhibits plant growth and metabolism, their days that ABA plays an important role in seed development and maturation. How is that possible?

Q. Which of these compounds induces seed dormancy?

Q. Seed dormancy is induced by

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Assertion(A): ABA helps seed to withstand desiccation and other factors unfavorable for growth. Reason(R): ABA induces seed dormancy.

The correct option is A Both A & R are true and R explains A ABA plays important role in seed development, maturation and dormancy. By inducing dormancy it helps seed to withstand desiccation and other factors unfavorable for growth.

Assertion(A): ABA helps seed to withstand desiccation and other factors unfavorable for growth.

Reason(R): ABA induces seed dormancy.

The correct option is A
Both A & R are true and R explains A

ABA plays important role in seed development, maturation and dormancy. By inducing dormancy it helps seed to withstand desiccation and other factors unfavorable for growth.