Definition

1. Adjective:
   • Relating to cross-fertilization in plants: Describes the process or condition in which a plant is fertilized by pollen from a different plant of the same species.

Usage

• The term is used in botany and plant biology to describe a reproductive mechanism.
• It is the opposite of "autogamous" (self-fertilizing).
• It can describe a plant species, its flowers, or its reproductive system.

Examples

• Adjective:
  • Many fruit trees are allogamous and require pollinators like bees to produce fruit.
  • The study compared the genetic diversity of allogamous and autogamous plant populations.
  • To ensure seed production, farmers must plant two different varieties of this allogamous crop close together.

Advanced Usage

• Allogamy (n): The noun form referring to the cross-fertilization process itself.
  • Allogamy promotes greater genetic variation within a species.
• Obligately allogamous: A term used for plants that are strictly dependent on cross-fertilization and cannot self-fertilize.
  • The plant is obligately allogamous, so isolated individuals will not set seed.

Variants and Related Words

• Allogamy (n): Cross-fertilization.
• Allogamousness (n): The state or quality of being allogamous. (Less common)
• Xenogamous: A synonym, specifically meaning fertilization by pollen from a genetically different plant.

Synonyms

• Cross-fertilizing
• Xenogamous
• Outcrossing (often used as a verb or noun, but can describe the same concept)

Antonyms

• Autogamous: Self-fertilizing.
• Self-fertilizing
• Self-pollinating

Adjective

1. relating to cross-fertilization in plants