Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
AIIMS 2013
Exam
AIIMS
Year
2013
Subject
Botany
Chapter
Plant - Growth and Development

AIIMS 2013 · Botany · Plant - Growth and Development

Which of the following plant growth regulators (PGRs) promotes root...

Which of the following plant growth regulators (PGRs) promotes root initiation, flowering and induced parthenocarpy?

Options

  1. AGibberellin
  2. BAuxin
  3. CCytokinin
  4. DEthylene

Correct answer

B. Auxin

Step-by-step solution

Auxins promote root initiation at a concentration which otherwise is inhibitory for growth of intact root. Auxins are often employed for inducing flowering in litchi and pineapple. Application of auxins to unpollinated pistils make them develop into seedless fruits or parthenocarps.
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… NEET 2026Length of the stem at time 0 is 20 cm. The arithmetic growth rate is 30 cm per day. What… NEET 2026Which of the following plant growth regulators promotes internode elongation prior to… NEET 2026Which one of the following is not a characteristic of plant cells in the phase of… NEET 2026Match List I with List II : List I (Growth Regulator) List II (Function/Effect) A. 2,4 -D… NEET 2026Which of the following plant growth regulators is used as herbicide ? NEET 2026Which one of the following phytohormones promotes nutrient mobilization which helps in… NEET 2025Read the following statements on plant growth and development. (A) Parthenocarpy can be… NEET 2025 Full Plant - Growth and Development list All AIIMS PYQs