Plant Growth and Development — Prelims Questions

Which of the following plant growth regulators is a gaseous hormone primarily involved in fruit ripening and senescence?

A plant requires a cold treatment to initiate flowering. This phenomenon is known as:

Which of the following statements about the sigmoid growth curve is INCORRECT?

Which of the following pairs of plant growth regulators are antagonistic in their effects on seed dormancy?

Which of the following is NOT a physiological effect of auxins?

Which of the following statements accurately describes developmental plasticity in plants?