Hi everyone this is E-Syedhassan 😎 and today you are reading a new article about Plant Seeds “Seed Germination Process” to understand the seeds and their germination.
This article will also help you to understand the “seed meaning” and “Seedling Process”. For “Germination” you need some “Seeds”.
Google search will help you to find “Plant Seeds”, “Vegetable Seeds”, “Tree Seeds”, “Flower Seeds” and many other types of seeds for example “Agarwood Seeds” and “Ficus Plant” especially for “Bonsai Art” Seeds so you can buy from online seed stores.
SEED MEANING | Definitions from Oxford Languages
SEED – /siːd/Google Search Result | Definitions From Oxford Languages
noun plural noun: seeds | verb 3rd person present: seeds
the unit of reproduction of a flowering plant, capable of developing into another such plant. “cut open the peppers and remove the seeds”
a man’s semen.Google Search Result | Definitions From Oxford Languages
sow (land) with seeds. “the shoreline is seeded with a special grass”
(of a plant) produce or drop seeds.”mulches encourage many plants to seed freely”Google Search Result | Definitions From Oxford Languages
PLANTS SEEDS | flower seeds, vegetable seeds:
Seeds are tiny parts of a plant that give rise to a new plant. Different seed is found in different shapes, sizes, and colors. It can be a pip, a nut, or a bean.
Parts of Seeds:
Seed coat – It is the outer covering the of seed. It protects the internal parts.
Seed leaves or cotyledons – Cotyledons are present inside the seed. Cotyledons absorb the food from the parent plant and store it for the embryo. They also protect the embryo. Some seeds have two seed leaves like gram, pea, bean, etc. Such seeds are called dicot or dicotyledonous. Some seeds have only one seed leaf. They are called monocot or monocotyledonous.
Embryo or baby plan – It is present inside the seeds which develop into a new plant. The embryo gives rise to a baby shoot (plumule) and root (radical).
the fundamental process by which different plant species grow from a single seed into a plant. This process influences both crop yield and quality.
A common example of seed germination is the sprouting of a seedling from a seed of an angiosperm or gymnosperm.
Seed Germination Process:
The complete process of seed germination is carried out:
During the beginning stage of germination, the seeds take up water rapidly and this results in swelling and softening of the seed coat at an optimum temperature.
This stage is referred to as Imbibition. It starts the growth process by activation of enzymes. The seed activates its internal physiology and starts to respire and produce proteins and metabolizes the stored food. This is a lag phase of seed germination.
By rupturing of the seed coat, radicle emerges to form a primary root. The seed starts absorbing underground water. After the emerging of the radicle and the plumule, shoot starts growing upwards.
In the final stage of seed germination, the cell of the seeds become metabolically active, elongates and divides to give rise to the seedling.
Conditions Necessary for Seed Germination:
Important requirements which are essential for a seed to germinate into a seedling and to a plant are as follows:
Water – It is extremely necessary for the germination of seeds. Some seeds are extremely dry and need to take a considerable amount of water, relative to the dry weight of the seed. Water plays an important role in seed germination. It helps by providing necessary hydration for the vital activities of protoplasm, provides dissolved oxygen for the growing embryo, softens the seed coats, and increases the seed permeability. It also helps in the rupturing of the seed and also converts the insoluble food into a soluble form for its translocation to the embryo.
Oxygen – It is an important and essential source of energy required for seed growth. It is required by the germinating seed for metabolism and is used as a part of aerobic respiration until it manages to grow green leaves of its own. Oxygen can be found in the pores of soil particles, but if the seed is buried too deep it will be deprived of this oxygen.
Temperature – For a seed to germinate, it requires a moderate temperature of around 25-30°C. Quite obviously different seeds require different optimum temperatures. There are some seeds which require special requirements either lower or higher temperature between 5 to 40°C.
Light or darkness – This can act as an environmental trigger. Many seeds do not germinate until sunlight falls on them.
The process of seed germination triggers under the above mentioned favourable conditions. The seeds undergo rapid expansion and growth of the embryo and subsequently rupturing the covering layers and emergence of the radicle. This radicle emergence is considered the completion of germination.
Factors Affecting Seed Germination:
There are some major factors that affect seed germination. These include:
Water – The poor or additional supply of water affects seed germination.
Temperature – This affects the growth rate as well as the metabolism of the seed.
Oxygen – Germinating seeds respire vigorously and release the energy required for their growth. Therefore, deficiency of oxygen affects seed germination.
In certain cases, a temperature below the moderate level slows down seed germination and promotes fungal growth. In some cases, germination stops at the temperature above the moderate level.
Seed Dormancy – This is a condition in which the seeds are prevented from germinating even under favorable conditions.
During Seed Dormancy:
- The seed coat, which is resistant to water and gases, restricts water-uptake and oxygen exchange.
- The seeds with undeveloped or immature embryo do not germinate.
- Certain seeds contain plant growth regulators, which inhibit seed germination.
- Some seeds require more time for their germination.
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- vegetable seeds
- flower seeds
- kings seeds
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Thankx for reading this article i hope this article is informative for all of you so keep visiting for more informative content. stay blessed.
This article is also take place under the banner of "Clean and Green Pakistan". Please Plant a Tree Save the Environment. This is my personal request that please please plant a tree or a plant buy planters for you home if you dont have proper land for tree plantation. Trees are life is a only reason of or existence on earth.