What do you mean by epigeal germination?

Epigeal germination (Ancient Greek ἐπίγαιος [epígaios] ‘above ground’, from ἐπί [epíon’ and γῆ [gê] ‘earth, ground’) is a botanical term indicating that the germination of a plant takes place above the ground. The opposite of epigeal is hypogeal (underground germination).

What is meant by epigeous and Hypogeous germination respectively?

During epigeous germination, the hypocotyl elongates, and the cotyledons extend above ground. During hypogeous germination, the epicotyl elongates, and the cotyledon(s) remain belowground (Figure 18.4. 2). The epicotyl elongates, and the cotyledons remain below the ground.

What is viviparous germination?

In viviparous germination, the seeds germinate while still attached to the parent plant. The embryo grows out of the seed and then out of the fruit and projects from it in the form of a green seedling displaying the root and the hypocotyl.

What is Hypogeal germination give example?

Hypogeal germination (from Ancient Greek ὑπόγειος [hupógeios] ‘below ground’, from ὑπό [hupó] ‘below’ and γῆ [gê] ‘earth, ground’) is a botanical term indicating that the germination of a plant takes place below the ground. An example of a plant with hypogeal germination is the pea (Pisum sativum).

What are 2 types of germination?

There are two types of germination:

• Epigeal Germination: In this type of germination, the hypocotyl elongates rapidly and arches upwards pulling the cotyledons which move above the soil.
• Hypogeal Germination: In this type of germination, the epicotyl elongates and the cotyledons remain below the soil.

What are examples of Epigeal germination?

Epigeal and hypogeal are two types of germination in which epigeal is germination that brings cotyledons out of the soil surface, one example of plants that experience epigeal germination is green beans, while hypogeal is germination which perpetuates cotyledons in the soil, one example of plants that have germination …

What are the 2 types of germination?

What are examples of epigeal germination?

What are the three types of germination?

ADVERTISEMENTS: The following three points will highlight the three main types of seed germination. The three main types are: (1) Hypogeal Germination (2) Epigeal Germination and (3) Vivipary (Viviparous Germination).

What are vivipary 3 examples?

Other examples include some species of scorpions and cockroaches, certain genera of sharks and snakes, and velvet worms. Ovoviviparity, a less developed form of viviparity, occurs in most vipers, and in most live-bearing bony fishes (Poeciliidae).

What are the examples of epigeal germination?

What are the 5 stages of germination?

Such five changes or steps occurring during seed germination are: (1) Imbibition (2) Respiration (3) Effect of Light on Seed Germination(4) Mobilization of Reserves during Seed Germination and Role of Growth Regulators and (5) Development of Embryo Axis into Seedling.

Which is an example of an epigeal germination?

Generally dicot seeds show Epigeal type of germination and in this regard, Epigeal seed germination can be observed in onion, castor, Alisma, papaya and bean. Epigeal germination is a type of germination whereby the seed leaves or the cotyledons are brought on to the surface or above the soil along with the shoot during germination.

Which is the opposite of hypogeal germination?

The opposite of epigeal is hypogeal (underground germination). Epigeal is also not the same as hypogeal germination; both epigeal and hypogeal plants will grow differently. Epigeal germination implies that the cotyledons are pushed above ground. The hypocotyl elongates while the epicotyl remains the same in length.

What happens to the epicotyls during hypogeous germination?

During epigeous germination, the hypocotyl elongates, and the cotyledons extend above ground. During hypogeous germination, the epicotyl elongates, and the cotyledon (s) remain belowground (Figure 18.4. 2). Some species (like beans and onions) have epigeous germination while others (like peas and corn) have hypogeous germination.

Where does the germination of a plant take place?

Epigeal germination. Epigeal germination ( Ancient Greek ἐπίγαιος [ epígaios] ‘above ground’, from ἐπί [ epí] ‘on’ and γῆ [ gê] ‘earth, ground’) is a botanical term indicating that the germination of a plant takes place above the ground. An example of a plant with epigeal germination is the common bean ( Phaseolus vulgaris ).