Question
Epigeal
Answers
GPT 3.5
Epigeal refers to the germination of seeds above the ground. It is a type of germination where the cotyledons (seed leaves) are pushed above the soil surface as the seedling emerges. This is in contrast to hypogeal germination, where the cotyledons remain below the soil surface.
During epigeal germination, the elongation growth of the hypocotyl (stem below the cotyledons) raises the cotyledons and pushes them above the soil surface. The cotyledons then expand and begin to carry out photosynthesis. In some plants, the cotyledons may turn green and become the first leaves of the seedling.
Examples of plants that exhibit epigeal germination include beans, peas, sunflowers, and lettuce. These plants typically have two cotyledons, hence they are called dicotyledonous plants. The cotyledons of these plants emerge and develop into the first true leaves of the plant.
Epigeal germination is advantageous for plants as it allows the cotyledons to emerge from the soil and receive sunlight early in the growth process. This enables the seedlings to quickly start photosynthesis and produce energy for further growth.
During epigeal germination, the elongation growth of the hypocotyl (stem below the cotyledons) raises the cotyledons and pushes them above the soil surface. The cotyledons then expand and begin to carry out photosynthesis. In some plants, the cotyledons may turn green and become the first leaves of the seedling.
Examples of plants that exhibit epigeal germination include beans, peas, sunflowers, and lettuce. These plants typically have two cotyledons, hence they are called dicotyledonous plants. The cotyledons of these plants emerge and develop into the first true leaves of the plant.
Epigeal germination is advantageous for plants as it allows the cotyledons to emerge from the soil and receive sunlight early in the growth process. This enables the seedlings to quickly start photosynthesis and produce energy for further growth.