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Seeds & Seed Propagation. Floral Careers Plant Propagation. 3 Basic Parts. Embryo Food Storage Coverings. Embryo. Part of the seed that “germinates” and becomes the new plant. Bean seed showing embryo. Food Storage. Cotyledons. Also called “seed leaves”. Cucumber seed leaves. - PowerPoint PPT Presentation
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Seeds & Seed Propagation
Floral CareersPlant Propagation
3 Basic Parts
Embryo Food Storage Coverings
Embryo
Part of the seed that “germinates” and becomes the new plant.
Bean seed showing embryo
Food Storage
Cotyledons. Also called “seed leaves”.
Cucumber
Cucumber seed leaves
Coverings
Seed coat
Germination Requirements of Seed
Moisture Favorable temperatures Oxygen
Light and Seed Germination
May be required for germination in some species: Small-seeded annual plants
Seed Enhancements
Let’s use Begonia as our first example
Begonia tuber-hybrida
Begonia Fruit
Begonia seeds are extremely small!1,000 seeds are shown next to the coin.
Pelleted Begonia seeds are much easier to see and mechanically sow. Pelleted seeds are round.
Multi-pelleted Lobelia seed. Each pellet contains several seeds.
Mechanical seed sower for sowing plug trays in the greenhouse $$$$$
How about Marigold?
Raw Marigold seed is long and thin with a prominent tail.
Detailed Marigold seed has the tail removed. Detailed seed is much easier to handle and
mechanically sow.
These are coated Marigold seeds. The coating improves visibility and helps the seeds flow better
through a mechanical sower.
The End