Germination
events that happen after fertilisation
↳
develops into a seed
Ovule
↳ diploid zygote divides by mitosis to form
&bloid embryo
pum
e
cotyledons
↳ triploid endosperm nucleus divides by mitosis to
form endosperm +issue (food store)
↳ integuments develop into testa
↳ overy wall develops into a fruit wall ,
enclosing
the seeds
Germination rapid onset of biochemical activity=
and
growth of a seedling until the plant can carry out
photosynthesis and be independent of food stores in the
cotyledons .
NON-ENDOSPERMIC SEED (broad beah
water is imbibed through the micropyle
·
·
cotyledons swell and testa splits to allow
entry of more oxygen for aerobic respiration
·
food reserves from cotyledons starch proteins
, ,
are mobilised by hydrolysis
·
providing sources of energy for respiration
and growth of the radicle + plumule .
events that happen after fertilisation
↳
develops into a seed
Ovule
↳ diploid zygote divides by mitosis to form
&bloid embryo
pum
e
cotyledons
↳ triploid endosperm nucleus divides by mitosis to
form endosperm +issue (food store)
↳ integuments develop into testa
↳ overy wall develops into a fruit wall ,
enclosing
the seeds
Germination rapid onset of biochemical activity=
and
growth of a seedling until the plant can carry out
photosynthesis and be independent of food stores in the
cotyledons .
NON-ENDOSPERMIC SEED (broad beah
water is imbibed through the micropyle
·
·
cotyledons swell and testa splits to allow
entry of more oxygen for aerobic respiration
·
food reserves from cotyledons starch proteins
, ,
are mobilised by hydrolysis
·
providing sources of energy for respiration
and growth of the radicle + plumule .
