Epigeal, epigean, epigeic and epigeous are biological terms describing an organism's activity above the soil surface. In botany, a seed is described as showing epigeal germination when the cotyledons of the germinating seed expand, throw off the seed shell and become photosynthetic above the ground.

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 …

2018年9月2日 · Epigeal and hypogeal germination are the two types of seed germination methods exhibited by seeds during their development into a mature plant. Germination begins with the imbibition of water into the seed, which in turn increases the metabolism and cell division inside the seed, leading to the enlargement of the embryo.

2020年8月29日 · Epigeal germination is a process of germination in which the cotyledons emerge out of the soil due to the elongation action of the hypocotyl. The hypocotyl is generally the part of the stem of an embryo plant beneath the stalks of the …

2022年7月27日 · Epigeal and hypogeal are terms used to describe the position of the cotyledonary node during germination, indicating whether the node is above or below ground once the seedling has become established. Epi means above while Hypo means below.

Epizootics often occur within the epigeal environment. Infection may spread rapidly directly from infected insects to uninfected insects, from spores on leaves to insects feeding on the leaves, and also via spores present in the air.

2025年3月8日 · Epigeal and hypogeal germination are two ways in which seeds sprout and grow into plants. Epigeal germination lifts the cotyledons above the soil, while hypogeal germination keeps them underground. Both types of germination have advantages depending on the plant species and environmental conditions.

Epigeal and hypogeal are terms used to describe the position of the cotyledonary node during germination, indicating whether the node is above or below ground once the seedling has become established. Epi means above while Hypo means below.

2024年1月14日 · 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. In Epigeal germination, the terminal part of the hypocotyl is curved to protect the plumule from the friction of the soil.

2023年1月29日 · What is Epigeal germination? In many dicotyledonous plants such as groundnut, beans etc., the cotyledons emerge from the soil and function as first leave. Then it is brought to soil surface without damage because they are present inside the thick cotyledons.