Fertilization: the process in which the female gamete and the male gamete unite to begin the reproductive process.

Germination: the initiation of growth in a dormant seed.

Gibberillic acid: a plant growth hormone.

Hypocotyl: the embryonic stem.

Ovule: the female gamete.

Pistil: one of the five main parts of the flower consisting of three parts, the stigma, the style and the carpel.

Pollen: the male gametes.

Radicle: the embryonic root.

Stamen: one of the five parts of the flower with two parts, the anther and the filament.