An essential feature of seed germination is the presence of

🔑Key Points:
-The process of seed germination depends on many factors like
-Temperature
-Water
-Oxygen
-Sometimes light.
-Seeds usually germinate within a wide temperature range.
-Hence, the essential requirement for seed germination to take place is water and oxygen.
-Germination cannot take place without a sufficient supply of water.
-In presence of sufficient moisture, water is taken up by seed.
-Oxygen is essential for aerobic respiration.

🛑Important Points:
-Water, air, and suitable temperature are necessary for seed germination.
-Water is necessary for germination because food is stored in the seeds in dry conditions, but the developing embryo cannot utilize this dry food.
-Food can be utilized in liquid form only and seeds can utilize only dissolved oxygen.
-Excess water stops germination because once all the dissolved oxygen is utilized by the seed, further germination is not possible as the life-supporting oxygen is now lacking.
-So, the correct answer is 'Water'.