Florigen is a hypothetical hormone which causes flowering. The hormone is capable of passing from one plant to another via grafting.
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Give examples of antagonist with respect to plant hormones
Abscisic acid acts as a antagonist to Gibberellic acids.
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Name various naturally occuring phytohormones.
The naturally occurring phytohormones are : auxin, gibberellins, cytokinins, ethylene and abscisic acid.
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What is development ?
Development is the sequence of events which occurs in life cycle of a cell, organ or organism that includes growth, differentiation, maturation and senescence.