GERMINATION HORMONE Meaning and
Definition
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Germination hormone is a term used to describe a class of plant hormones, also known as gibberellins, that play a crucial role in the process of germination. Germination refers to the process by which a seed sprouts and begins to develop into a new plant. Germination hormones regulate various physiological and cellular processes that are essential for this growth and development.
Germination hormones are naturally occurring compounds that are synthesized within plants. They primarily influence seed germination, stem elongation, and flowering. These hormones are primarily found in the shoot and root tips, developing seeds, and young leaves of plants.
The presence of germination hormones triggers a series of events that lead to the breaking of seed dormancy and the initiation of seedling growth. These events include the activation of enzymes that break down stored nutrients in the seed, the stimulation of cell division, and the promotion of cell elongation. Germination hormones also have an effect on various metabolic processes in young seedlings, such as protein synthesis and sugar metabolism.
Furthermore, germination hormones interact with other plant hormones, such as auxins and cytokinins, to regulate plant growth and development. They can also be externally applied to seeds or plants to promote or accelerate germination, increase fruit size, or manipulate flowering time.
In summary, germination hormones are a class of plant hormones that are responsible for initiating and regulating the process of germination. They control various cellular and physiological processes, enabling the plant to break dormancy and successfully establish its growth and development.
Etymology of GERMINATION HORMONE
The word "germination hormone" is composed of two terms: "germination" and "hormone".
1. "Germination" comes from the Latin word "germinare", meaning "to sprout or shoot". It is derived from the Latin term "germen", which means "bud, sprout, or germ". The term "germination" refers to the process of a seed sprouting and developing into a new plant.
2. "Hormone" originated from the Greek word "hormon", which means "that which sets in motion". It is derived from the Greek word "hormao", which means "to set in motion" or "to urge on". The term "hormone" refers to a chemical substance produced by an organism's endocrine glands that acts as a messenger, regulating various physiological processes in the body.
