Home Biology Plant Growth and Development Skill Builder The PGR which causes apical hook formation i…
Biology Plant Growth and Development Skill Builder Single Correct MCQ
Published on: August 12, 2026

The PGR which causes apical hook formation in dicot seedling also helps in

A
Overcoming the apical dominance
,
B
Widely used as herbicides
C
Delays senescence
& (F)
D
Induces flowering in mango
(E) Also known as antigibberellin
(F) Causes thinning of cotton, cherry and walnut. , (E) & (F)

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Ethylene is used to induce flowering in mango. Ethephon hastens fruit ripening in tomatoes and apples and accelerates abscission in flowers and fruits (thinning of cotton, cherry, walnut).

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