Swede seedling germinating (Brassica napus)Ref: 80018727
Germinating seed. Image 2 of 4. Coloured scanning electron micrograph (SEM) of an early stage in the germination of a plant seed. The radicle (white), the embryonic root, is more fully extended from the seed, and the root 'hairs' are seen. These structures increase the ability of the root to obtain water and nutrients from its surroundings.