The conditions necessary for seed germination are:
- Water: It activates enzymes that begin the metabolic processes needed for growth and softens the seed coat to allow the embryo to sprout.
- Temperature: A suitable temperature range is required for enzymes to function and for the seed to grow. The optimal temperature varies by species.
- Oxygen: Seeds need oxygen for cellular respiration, which provides the energy for growth.
- Light: Some seeds need light to germinate, while others require darkness. The light requirement depends on the species.
- Proper seed coat conditions: The seed coat should be permeable enough for water and oxygen to enter, allowing the embryo to grow.