NEETBotanyPlant - Growth and Development

Which PGR is associated with dormancy and abscission?

Options

AAuxins
BGibberellins
CCytokinins
DAbscisic acid

Correct answer

D. Abscisic acid

Step-by-step solution

The PGRs of the other group play an important role in plant responses to wounds and stresses of biotic and abiotic origin. They are also involved in various growth inhibiting activities such as dormancy and abscission. The PGR abscisic acid belongs to this group.

Practice Plant - Growth and Development on Quantrex Academy →

More from Plant - Growth and Development

Heterophyllous development in response to environment is an example of which of the following phenomena ? 2026 Length of the stem at time 0 is 20 cm. The arithmetic growth rate is 30 cm per day. What is the length of the stem at the end of the 7^ th day ? 2026 Which of the following plant growth regulators promotes internode elongation prior to flowering in cabbage ? 2026 Which one of the following is not a characteristic of plant cells in the phase of elongation ? 2026 Match List I with List II : List I (Growth Regulator) List II (Function/Effect) A. 2,4 -D I. Brewing industry B. GA ₃ II. Stimulation of stomatal closure C. Kinetin III. Herbicide 2026 Which of the following plant growth regulators is used as herbicide ? 2026 Which one of the following phytohormones promotes nutrient mobilization which helps in the delay of leaf senescence in plants? 2025 Read the following statements on plant growth and development. (A) Parthenocarpy can be induced by auxins. (B) Plant growth regulators can be involved in promotion as well as inhib 2025 Full Plant - Growth and Development list All NEET PYQs