Auxin is a growth type of this substance; it regulates plant growth, especially in stems
.... Auxins act to inhibit the growth of buds lower down the stems (
apical... [DOC] [TLE] Auxins, Cytokinins, and Gibberellins - Boundless [PAR] Learn more about auxins, cytokinins, and gibberellins in the Boundless open ... 
Differentiate among the types of plant hormones and their effects on plant growth 
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