Seeds What are seeds? Basic Parts of Seeds 1. Embryo 2. Food Supply 3.
Download
Report
Transcript Seeds What are seeds? Basic Parts of Seeds 1. Embryo 2. Food Supply 3.
Seeds
What are seeds?
Basic Parts of
Seeds
1. Embryo
2. Food Supply
3. Ovary wall or
seed coat
Germination
Needed for Germ
1. Temperature
2. Moisture
3. Air
4. Light or absence of
it
Germination
Process
1. Seed absorbs
water
2. Seeds proteins
activated
3. Radicle (root)
emerges
Germination
4. Plumule or
embryonic shoot
emerges
5. Leaves form and
food production
begins
Monocot Seeds
1. Seed coatprotection
2. Endosperm- a
source of energy
3. Embryo-miniature
plant that has
Monocot Seeds
3.Embryo:
Epicotyle-shoot
above cotyledon
Hypocotyl-part of
stem below the
cotyledon
Radicle- primary root,
Dicot Seeds
1. Seed Coatprotection
2. Embryo
miniature plant
Dicot Seeds
2. Embryo2 cotyledons-seed
leaves
Epicotyl-true leaves
Hypocotyl-first stem,
pulls seed upward
Radicle-forms roots
Monocot
Germination
1. Seed swells
2. Radicle grows
down
3. First internode and
epicotyl grows upward
Monocot
Germination
4. New leaves form
and food production
starts
5. New root system
develops
6. Temporary root
system ceases to
Dicot
Germination
1. Seed swells
2. Radicle grows
down
3. Hypocotyl forms
arch that breaks soil
surface
Dicot Germination
4. Hypocotyl reaches
light and straightens
up
5. Cotyledons turn
green and make food
6. As new leaves
develop, cotyledons