Germination in a seed typically begins when the seed is planted in soil and provided with the right conditions such as water, warmth, and oxygen.
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Oxygen is needed by seeds during germination to undergo cellular respiration and produce energy for growth. This process allows the seed to break dormancy and begin the germination process.
seed germination does not takes place in flo.wers
The tiny hole in a seed is called the micropyle. It is the opening that allows water to enter the seed for germination to begin.
Germination of a seed is generally considered an irreversible process, as it marks the beginning of the growth of a new plant. Once the seed has undergone germination and starts to grow, it cannot revert back to its dormant state.
The biome with the longest seed germination time is typically the arctic tundra due to the cold temperatures and short growing season that restricts seed germination and growth. Some seeds in the arctic tundra can remain in the soil for years before conditions are right for germination.