Apomixis

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Apomixis
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Apomixis
an exception to the rule of nonclonal embryony.
the development of an embryo within a seed or
flowering structure from a source other than the
egg, resulting in the formation of an embryo
(sometimes in addition to the sexual embryo)
that is a clone of the maternal parent. Examples
include polyembryony in citrus and crabapples,
and the formation of bulbils in garlic.
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Apomixis
vegetativeapomixis
Bulbil in tiger lily inflorescence
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Apomictic
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Stage of seed germination

• 1st Stage

a) imbibition - initial absorption of water to
hydrate seed  b) activation of metabolism -
increased respiration and protein synthesis 

• 2nd Stage

a) digestion of stored food- for example, starch
to sugars in cotyledo
or endosperm  b) translocation to
embryo- sugars move to embryo for growth

• 3rd Stage

a) cell division and growth - development of
seedling
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Sexual or Seed Propagation
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Sexual Life cycle of higher plants

• Angiosperms Monocots and Dicots - the flowering
  plants

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