Which reagent(s) will best complete the following reaction? 
Definitions:
Imbibition
The absorption of water by a seed prior to germination.
Apical Dominance
The inhibition of axillary (lateral) buds by a shoot tip.
Determinate Growth
A growth pattern in plants and some animals in which growth stops after reaching a certain size or age.
Senescence
The aging process.
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