Here's what the radicle does:
* First to emerge from the seed: The radicle is the first part of the seedling to emerge from the seed during germination. This happens because it grows downwards, seeking moisture and anchoring the seedling in the soil.
* Establishes the root system: The radicle develops into the primary root, which serves as the foundation for the entire root system. The primary root branches out, forming lateral roots and ultimately creating a network that absorbs water and nutrients from the soil.
* Essential for seedling survival: The radicle is critical for the seedling's survival. It provides water and nutrients needed for growth and development, and anchors the plant in the soil, enabling it to withstand environmental stress.
There is no such thing as a "seminal root" in dicots. This term might be a misunderstanding of the word "radicle."