Seeds Flashcards
What is a seed
fertilized ovule
this part of the seed Protects the embryo
testa / seed coat
Provides nourishment for the
seed
endosperm
What develops first, the embryo or the endosperm?
endosperm
Why does the dicot seed not have an endosperm?
food reserves of endosperm are transferred to cotyledon
Small space where integuments meet
micropyle
seeds with little to no
endosperm
exalbuminous
seeds with well-developed
endosperm
albuminous
example of albuminous seed
Zea mays
Scar left after the funiculus is attached
hilum
Embryonic root
radicle
where embryonic shoot grows/embryonic
stem
epicotyl
Root/shoot junction
hypocotyl
Protective sheath of young shoot
coleoptile
Source of food usually in the form of carbohydrates
cotyledon
rudimentary shoot or stem
plumule
Protective layer of young root
coleorhiza
this emerges into first leaves
plumule
guves nourishment to the seeds opposite of micropyle
chalaza
Where is the seed coat from?
integuments
this type of seed classification is damaged in dry storage or low temp
Intermediate
Examples of intermediate
Coffea canephora
citruses
Why is there a cold treatment in treating seed dormancy?
to induce the gibberellin
what hormone induces seed dormnacy?
abscisic acdi
what is the biggest seed
Lodoicea maldivica
it is a stage where radicle. epicotyl and hypocotyl is formed
torpedo stage
cotyledon primordia forms a heart shape
heart stage
stalk-like structure; pushes embryo
deep into the endosperm
suspensor
seed classification that tolerates dessication at maturity
Psidium guajava
Grain amaranth,
Anacardium occidentale
vigna radiata
plants taht forces its seed to come out
Abelmoschus esculentus
Ceiba pentandra
these type of seeds do not survive at drying and freezing
mangifera indica, persea americana, cocos nucifera
this germination has cotyledons being raised out of the soil by the hypocotyl
epigeal germination
this germination has cotyledons being raised out of the soil by the cotyledons
hypogeal germination
