1. Seeds What are seeds? Original Power Point Created by Darrin Holle
Modified by Georgia Agricultural Education Curriculum Office
June 2002

2. Basic Parts of Seeds 1. Embryo 2. Food Supply
3. Ovary wall or seed coat

3. Germination Needed for Germ 1. Temperature 2. Moisture 3. Air
4. Light or absence of it

4. Germination Process 1. Seed absorbs water 2. Seeds proteins activated
3. Radicle (root) emerges

5. Germination 4. Plumule or embryonic shoot emerges
5. Leaves form and food production begins

6. Monocot Seeds 1. Seed coat-protection 2. Endosperm- a source of energy
3. Embryo-miniature plant that has

7. Monocot Seeds 3.Embryo: Epicotyle-shoot above cotyledon
Hypocotyl-part of stem below the cotyledon
Radicle- primary root, supports seedling

8. Dicot Seeds
1. Seed Coat-protection
2. Embryo miniature plant

9. Dicot Seeds 2. Embryo- 2 cotyledons-seed leaves Epicotyl-true leaves
Hypocotyl-first stem, pulls seed upward
Radicle-forms roots

10. Monocot Germination 1. Seed swells 2. Radicle grows down
3. First internode and epicotyl grows upward

11. Monocot Germination 4. New leaves form and food production starts
5. New root system develops
6. Temporary root system ceases to function and dies

12. Dicot Germination 1. Seed swells 2. Radicle grows down
3. Hypocotyl forms arch that breaks soil surface

13. Dicot Germination 4. Hypocotyl reaches light and straightens up
5. Cotyledons turn green and make food
6. As new leaves develop, cotyledons dry up and fall off