Conditions necessary for seed germination are
oxygen and temperature
Water (Moisture) – This is required to trigger the mechanism of germination. Mature seeds are often extremely dry and need to take in significant amounts of water, relative to the seeds dry weight, before cellular metabolism, to resume their growth.
Oxygen – It is essential during germination for respiration and other physiological activities.
Temperature – Suitable temperature is important factor for proper seed germination. Temperature affects cellular metabolic and growth rates.