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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Give the types of auxins.
Auxins are of two types :
(1) Natural auxins : These are naturally occuring auxins, isolated from plants and are regarded as phytohormones e.g. IAA. NAA etc.
(2) Synthetic auxins : These are synthesized by artificially e.g. IBA 2,4-D etc.
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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.