Parts of the Seed
This is the outermost layer of the seed and is used to protect it.
Seed wall
What are the four factors that affect germination?
Water, oxygen, light, and temperature
What is seed Viability?
The amount of living seeds after being in storage
What is germination?
The process by which a seed becomes a plant
Some good seed qualities are what?
uniform in size, pure, free of weed seeds and contaminates, properly labeled
One example of a monocot seed (more than one acceptable answer)
corn kernel, buckeye, tulip bulb
How does water affect seed germination?
Provides oxygen for embryo, softens seed coat, and increases seed permeability
What is seed vigor?
How endurant it is
What is the first stage of seed germination?
Imbibition
Some bad seed qualities are what?
different sizes, discolored seed source, low germination and plant vigor, diseased plants
One example of a dicot seed (more than one acceptable answer)
Soybean, sunflower seed
How does oxygen affect seed germination?
It produces energy for germination and growth
What is stratification?
The process of lowering the temperature in order to trigger the end of dormancy
What is the second stage of seed germination?
Dormancy
To imbibe means what?
To intake water
The radicle does what?
Sprouts into a root
How does light affect germination?
It causes the seed to enter a state of readiness for germination
What is scarification?
Breaking or weakening the seed coat in order to speed up germination
The third stage of seed germination is what?
Growth
Gibberellin is what?
A growth hormone
The 'cot' in monocot and dicot stands for what? What does it do?
Cotyledon, stores energy in the form of starch
how does temperature affect seed germination?
Percentage of germination goes up with the temperature until it reaches optimal temperature. Once it goes above optimal temperature, the percentage of seed germination goes down
What are some seed storage requirements?
Store between 35-40 degrees with low humidity
Is water wet?
majority decides
Is a hotdog a sandwich?
No