Reserve nutrients and their role in seed germination.

With the help of these substances, the plant embryo is able to stay inside the seed for a long time. He uses a very small amount of these substances. But when favorable conditions for germination appear, such as heat and moisture, the embryo begins to use reserve substances for germination. The root will not be able to absorb water until it hits the ground, and the plant will not be able to photosynthesize until the leaf appears above the soil surface. For this, there are reserve substances for the plant to survive while it is undergoing adaptation.