Scientifically, plant hormone is an organic compound produced in one part of plant and transmitted to other parts in very low concentration casuing physiological responses. 5 major types of endogenous plant growth substances or plant hormones are- auxin, gibberellins, cytokinins, abscis acids and ethylene.
Polar transport of auxin in the segments of stem includes the movement of auxin from ___________.
Reveal answer
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