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G rowing S eeds

Explore the fascinating world of seeds and their potential for growth. Discover the key requirements for plant growth and learn about the different parts of a seed. Uncover the mysteries of seed formation and viability. Differentiate between monocot and dicot seeds and their unique characteristics.

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G rowing S eeds

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  1. Growing Seeds One of life’s little wonders…

  2. Things to ponder… • What are the 5 major plant growth requirements? • Nutrients • Light • Moisture • Carbon Dioxide • Temperature

  3. It’s just a seed right? • Dry • Small • Ugly • Who cares?

  4. Or is it? • All Different • Alive • Little promises of growth! • Hold Potential • Impressive • Neatly packaged

  5. What is a seed? • A seed is a fertilized, ripened ovule of a seed-producing plant… • Containing a living plant embryo capable of germinating and producing a new plant!

  6. More simply… • A seed is a guarantee of another plant!

  7. How are seeds formed? • Flowers are pollinated and seeds form within the drying flower.

  8. What’s in a seed? • A tiny living plant embryo suspended inside.

  9. What’s viability? • This ability for the embryo to wait suspended is called “viability”

  10. Epicotyl: (in the embryo of a plant) the part of the stem above the cotyledons. • Hypocotyl: connects the cotyledons to the radicle.

  11. Radicle: The part of a plant embryo that develops into a root. • Cotyledon: the primary leaf of the embryo of seed plants. (Like the sepal of a bud… for protection.)

  12. What is the length of a seed’s viability called? • “longevity”

  13. The 2 Seed Categories:

  14. One seed leaf Flower parts are in 3’s or multiples of 3 Leaves have parallel veins Vascular bundles are scattered in the stem Tap Root System Monocot

  15. Monocot • Seed Coat • Endosperm • Cotyledon • Embryo

  16. Two seed leaves (cotyledons) Flower parts in four or five multiples Leaves are net veined Vascular bundles in stems are arranged in a circle Fibrous Roots Dicot

  17. Dicot • Seed Coat • Endosperm • Cotyledons • Embryo

  18. Can you tell them apart? A B

  19. #3 #1 #4 #2 Can you identify the parts?

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