G rowing S eeds One of life’s little wonders…. Things to ponder… What are the 5 major plant...

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Growing Seeds One of life’s little wonders…

Transcript of G rowing S eeds One of life’s little wonders…. Things to ponder… What are the 5 major plant...

Page 1: G rowing S eeds One of life’s little wonders…. Things to ponder… What are the 5 major plant growth requirements?  Nutrients  Light  Moisture  Carbon.

Growing Seeds

One of life’s little wonders…

Page 2: G rowing S eeds One of life’s little wonders…. Things to ponder… What are the 5 major plant growth requirements?  Nutrients  Light  Moisture  Carbon.

Things to ponder…What are the 5 major plant growth requirements?

Nutrients

Light

Moisture

Carbon Dioxide

Temperature

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It’s just a seed right?DrySmallUglyWho cares?

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Or is it?All DifferentAliveLittle promises of growth!Hold PotentialImpressiveNeatly packaged

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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!

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More simply…

A seed is a guarantee of another plant!

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How are seeds formed?

Flowers are pollinated and seeds form within the drying flower.

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

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

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Epicotyl: (in the embryo of a plant) the part of the stem above the cotyledons.

Hypocotyl: connects the cotyledons to the radicle.

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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.)

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What is the length of a

seed’s viability called?

“longevity”

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The 2 Seed Categories:

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One seed leafFlower parts are in 3’s or multiples of 3Leaves have parallel veinsVascular bundles are scattered in the stemTap Root System

Monocot

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Endosperm

Cotyledon

Embryo

Seed CoatMonocot

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Two seed leaves (cotyledons)Flower parts in four or five multiplesLeaves are net veinedVascular bundles in stems are arranged in a circleFibrous Roots

Dicot

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Endosperm

Cotyledons

Embryo

Seed CoatDicot

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Can you tell them apart?

AA BB

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Can you identify the parts?

#1

#2

#3

#4