EPIGEAL AND HYPOGEAL GERMINATION PDF

Jump to navigation Jump to search Epigeal vs. An example of a plant with hypogeal germination is the pea Pisum sativum. The opposite of hypogeal is epigeal above-ground germination. Germination[ edit ] Hypogeal germination implies that the cotyledons stay below the ground. The epicotyl part of the stem above the cotyledon grows, while the hypocotyl part of the stem below the cotyledon remains the same in length.

Author:Kazizil Zuluzshura
Country:Saint Kitts and Nevis
Language:English (Spanish)
Genre:Personal Growth
Published (Last):26 December 2012
Pages:199
PDF File Size:10.91 Mb
ePub File Size:10.51 Mb
ISBN:787-1-52765-319-5
Downloads:57672
Price:Free* [*Free Regsitration Required]
Uploader:Mishura



Cotyledons, Epicotyl, Epigeal Germination, Hypocotyl, Hypogeal Germination What is Epigeal Germination Epigeal germination is the type of germination in which the cotyledons rise out of the soil due to the elongation of the hypocotyl. The hypocotyl is the part of the stem of an embryo plant beneath the stalks of the cotyledons. After emerging out of the soil, these cotyledons are called seed leaves, which become photosynthetic as well. The second leaves derived from the plumule become true leaves.

In addition to food storage, cotyledons undergo photosynthesis and produce food for the development of the embryo. What is Hypogeal Germination Hypogeal germination is the other type of germination in which the cotyledons remain inside the soil. Therefore, its hypocotyl is short.

Similarities Between Epigeal and Hypogeal Germination Epigeal and hypogeal germination are two methods of seed germination. They are characterized by the relative position of the cotyledons to the soil during germination.

Difference Between Epigeal and Hypogeal Germination Definition Epigeal germination refers to the germination of a plant that takes place above the ground while hypogeal germination refers to the germination of a plant that takes place below the ground.

Cotyledons In epigeal germination, the cotyledons emerge out of the soil while in hypogeal germination, the cotyledons remain inside the soil. This is the main difference between epigeal and hypogeal germination. Length of the Hypocotyl The hypocotyl is long in plants that show epigeal-gemination while the hypocotyl is short in plants that show hypogeal germination. Length of the Epicotyl Epicotyl is short in plants that show epigeal germination while the epicotyl is long in plants that show hypogeal germination.

Photosynthetic Cotyledons The cotyledons in epigeal germination turn green and undergo photosynthesis while the cotyledons in hypogeal germination do not undergo photosynthesis. Energy for the Embryo Development In epigeal germination, the energy comes from the cotyledons, while, in hypogeal germination, the energy comes from the endosperm.

Occurrence Epigeal germination occurs in beans and castor while the hypogeal germination occurs in coconut, pea, and maize.

The relative position of the cotyledons is determined by the length of the hypocotyl. The main difference between epigeal and hypogeal germination is the relative position of the cotyledons to the soil.

Reference: 1. Kumar, Srinibas.

ESTATICA RUSSEL C.HIBBELER PDF

Hypogeal germination

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. This is usually due to rapid elongation and curved-like shape of the hypocotyl. This change in the shape or curvature of the hypocotyl allows the seed leaves or the cotyledons to come above the surface of the soil. The hypocotyl is the part of the stem of an embryo plant beneath the stalk of the cotyledons. After the cotyledons have come above the soil surface, the hypocotyl straightens resulting to falling off, of seed coat and with time the appearance of the cotyledons change to green. Now, the resultant plant structure epicotyl eventually matures and gives rise to mature green leaves and with time the cotyledons fall off.

BUDAYA KORPORAT KKM PDF

Difference Between Epigeal and Hypogeal Germination

Cotyledons, Epicotyl, Epigeal Germination, Hypocotyl, Hypogeal Germination What is Epigeal Germination Epigeal germination is the type of germination in which the cotyledons rise out of the soil due to the elongation of the hypocotyl. The hypocotyl is the part of the stem of an embryo plant beneath the stalks of the cotyledons. After emerging out of the soil, these cotyledons are called seed leaves, which become photosynthetic as well. The second leaves derived from the plumule become true leaves. In addition to food storage, cotyledons undergo photosynthesis and produce food for the development of the embryo. What is Hypogeal Germination Hypogeal germination is the other type of germination in which the cotyledons remain inside the soil. Therefore, its hypocotyl is short.

Related Articles