Which of the following statement is incorrect?

Biology Plant Growth and Development Skill Builder Single Correct MCQ

Published on: August 27, 2026

Development includes all the changes from germination of the seed to senescence in plants.

A sigmoid curve is a characteristic of living organism growing in a natural environment.

Plants follow different pathways in response to environment or phases of life to form different kinds of structures. This ability is called plasticity.

H.H. Cousins (1910) discovered ABA.

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(d) H.H. Cousins (1910) confirmed the release of a volatile substance from ripened oranges that hastened the ripening of stored unripened bananas. Later this volatile substance was identified as ethylene, a gaseous PGR.

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