Ethylene is a gaseous plant growth regulator, synthesised by most ripening fruits and ageing tissues. Ethylene is used as both plant growth promoters and plant growth inhibitors. It is mainly used to stimulate the ripening of fruits. It also promotes root growth and root hair formation to increase the absorption surface. Cytokinin can overcome apical dominance caused by auxin. Synthetic auxin kill dicotyledonous weeds in the fields. Gibberellins are used to speed up the malting process in brewing industry.
The gaseous plant growth regulator is used in plants to:
NEET UG 2022 — Botany Plant - Growth and Development
2022mcqeasy
The gaseous plant growth regulator is used in plants to:
Official previous-year question
Held on 30 Apr 2022 · Verified 9 Jul 2026.
Options
- A
promote root growth and roothair formation to increase the absorption surface
- B
help overcome apical dominance
- C
kill dicotyledonous weeds in the fields
- D
speed up the malting process
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