itävyysvaiheesta

Itävyysvaiheesta, also known as the germination phase, refers to the initial period in the life cycle of a seed or spore. This stage begins when the seed or spore encounters favorable environmental conditions, such as adequate moisture, temperature, and oxygen. During this phase, the dormant embryo within the seed or spore becomes metabolically active. Water is absorbed, causing the seed coat or spore wall to soften and swell. This process activates enzymes that begin to break down stored food reserves, providing energy for the developing embryo. The first visible sign of germination is typically the emergence of the radicle, which is the embryonic root. This is followed by the plumule, which develops into the shoot. The transition from dormancy to active growth is a critical step in the plant's life, enabling it to establish itself in the environment. The duration of the itävyysvaiheesta varies greatly depending on the species and environmental factors.