Germination - bean: the development
of a seed from its embryonic form to the birth of a new plant.
Cotyledon: lobe contained within the seed.
Young stem: immature plant.
Seed coat: seed coat.
First leaves: first organs of photosynthesis to appear.
Radicle: part of the plant from which the root originates.
Secondary roots: divisions of the primary root.
Hypocotyl: part of the plantlet beneath the cotyledons.