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LESSON SIX

Nutrients Requirements and Testing 6 -2

The Germination Process:
(see diagram on page 6-3)
 
The initial stages of plant growth happen within the seed coat.
As the seed absorbs water, growth begins with cell enlargement. In the presence of water, the stored reserves within the seed are converted chemically to substances that can be readily used
in the growing process.

Once the seed coat breaks and the radical root comes out, the seedling will need to draw moisture and nutrition from the medium surrounding it.

Several days after the root has emerged, the shoot begins to grow. In the presence of light, the seed leaves (cotyledons) open. The opening of the first foliage leaves will follow.

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