Which plant growth regulator is responsible for triple response? - Vidyadip

Question

Which plant growth regulator is responsible for triple response?

✓

Answer

a
Firstly, a Russian Physiologist Dimitry N Nelijubow who established ethylene's triple response on pea seedling. These triple responses are

$(a)$ inhibited stem elongation

$(b)$ increased stem thickening

$(c)$ horizontal growth habit

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