Germination | Description, Process, Diagram, Stages, Types,
2024年11月18日 · Germination, the sprouting of a seed, spore, or other reproductive body, usually after a period of dormancy. The absorption of water, the passage of time, chilling, warming, oxygen availability, and light exposure may all operate in initiating the process.
Germination - Definition, Process and Temperature - Biology …
2018年2月11日 · Germination refers to the process by which an organism grows from a seed or a spore. The most common forms of germination include a seed sprouting to form a seedling and the formation of a sporeling from a spore. Thus, germination occurs …
Germination - Wikipedia
Germination is usually the growth of a plant contained within a seed resulting in the formation of the seedling. It is also the process of reactivation of metabolic machinery of the seed resulting in the emergence of radicle and plumule.
Germination in Plants: Conditions and Types (With Diagram)
In this article, we propose to discuss the conditions necessary for germination and types of germination in plants. Germination is the awakening of the dormant embryo. In all mature Angiospermic seeds the embryo lies in a dormant state when its …
4.6.4: Germination - Biology LibreTexts
Identify the environmental factors that stimulate germination. Distinguish between epigeous and hypogeous germination. Compare germination in eudicots versus monocots. Many mature seeds enter a period of inactivity, or extremely low metabolic activity: a process known as dormancy, which may last for months, years or even centuries.
Seed Germination - an overview | ScienceDirect Topics
Seed germination is the initial step in the life cycle of plants, which begins when the inactive dry seed imbibes water and is completed with the protrusion of the radicle from the seed coat (Nonogaki et al., 2010).
2.2 Introduction to Seed Germination – The Science of Plants
At germination, the seed’s metabolic pathways are activated, leading to embryo growth and emergence of a new seedling. Germination begins with activation by water uptake. We call this imbibition, and sometimes the seed or fruit requires special treatment for water to get into the seed and start this process.
Germination of Plant - Biology Reader
Germination of a plant refers to a phenomenon in which a seed germinates to form a new seeding or plant. The germination process results in the emergence of the radicle (primary root) and plumule (primary shoot). Before germination, the seed remains dormant in the soil.
Process of Seed Germination: 5 Steps (With Diagram) - Biology …
The process of seed germination includes the following five changes or steps. 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.
Germination - Developmental Biology - NCBI Bookshelf
During germination, the plant draws on the nutrient reserves in the endosperm or cotyledons. Interactions between the embryo and endosperm in monocots use gibberellin as a signal to trigger the breakdown of starch into sugar. As the shoot reaches the surface, the differentiation of chloroplasts is triggered by light.