• What is it?
–Process that causes a seed to begin to
__________ into a new __________grow plant
Factors influencing
germination
• Water
• Oxygen
• Temperature
• Light
Water
• Mature seeds have relatively little
moisture to prevent __________
• Seeds usually mature in ______
• To germinate...
Water (cont.)
• Outside seed coat = ________
• Seed is _________ when testa
is dry and in tact
• With moisture, testa soft...
Oxygen
• Oxygen in the presence of
enough moisture causes
_______________ to start
• This creates __________ for
the germi...
Temperature
• Most seeds go through a ________
period before germination
• Helps prevent seeds from
__________ as soon as ...
Light
• Amount of light needed varies
• __________ of seed planting
influences this
• Too deep = not enough _______ or
___...
Dormancy
• Period when seed is alive
but not ___________
• Proper __________ break
dormancy
• Viable - _________ of
living...
Seed Germination Notes
Seed Germination Notes
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Seed Germination Notes

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An overview of what seed germination is and the four major factors influencing it.

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Seed Germination Notes

  1. 1. • What is it? –Process that causes a seed to begin to __________ into a new __________grow plant
  2. 2. Factors influencing germination • Water • Oxygen • Temperature • Light
  3. 3. Water • Mature seeds have relatively little moisture to prevent __________ • Seeds usually mature in ______ • To germinate, seeds must ______ _____ water decay fall take in
  4. 4. Water (cont.) • Outside seed coat = ________ • Seed is _________ when testa is dry and in tact • With moisture, testa softens, swells and _______________ testa dormant ruptures (opens)
  5. 5. Oxygen • Oxygen in the presence of enough moisture causes _______________ to start • This creates __________ for the germination process respiration energy
  6. 6. Temperature • Most seeds go through a ________ period before germination • Helps prevent seeds from __________ as soon as they mature • Proper temp. for most seeds = _____________ cold sprouting 68 – 85 o F
  7. 7. Light • Amount of light needed varies • __________ of seed planting influences this • Too deep = not enough _______ or __________ • Too shallow may = too much ________ Depth light oxygen light
  8. 8. Dormancy • Period when seed is alive but not ___________ • Proper __________ break dormancy • Viable - _________ of living or germinating growing conditions capable
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