Among the living organisms plants are most adorable thing upon which every organism depends on for food, shelter, etc. The world without plants is unthinkable. They have lots of roles to act. They act as a source of food and oxygen, ornamental functions, maintaining ecological balance etc. For a better understanding of plants, we need to know its different parts and their functions. Let’s have a glance of different parts of the root system and their functions in an ecosystem.
Other than sunlight plants depend on soil for the water and nutrients they need. They meet this need with the help of their underground parts called roots. Roots, root-hairs, and all its parts together constitute the root system of the plants. However, there are few exceptions like roots can also be aerial; such roots grow up above the ground especially in aquatic plants.
Roots play a crucial role in the plant’s existence. They are the supportive parts which fix plants in its region of growth. In addition to supporting, roots have other roles too to play. They are as follows:
- Anchoring: Roots are the reason of attachment of plants to the ground. Also, they support the plant body and make them stand erect. They check soil erosion.
- Absorption: Primary and vital function of roots after support is the absorption. They absorb water and dissolved minerals from the soil for other aerial parts. Thus, assist photosynthesis.
- Storage: Food that plant prepares stored for later use. Roots are one of the storerooms in plants. Vegetables like carrots, radish, beetroot, etc are few roots where plants store their food and nutrients.
- Reproduction: Even though roots are not reproductive part of plants, they are vegetative parts. In some plants, roots are means of reproduction. In such plants, new plants arise from roots like runners/stolons in jasmine, grass, etc. This type of reproduction is called vegetative propagation.
Although all roots have similar functions, they seem different in different plants. Hence, based on the appearance, the root system classified into two types, namely, tap-root (e.g. Mustard, China rose) and fibrous root (e.g. Rice, Wheat). Tap roots have a main central root where small, lateral roots called root hairs attached while fibrous roots are bushy roots in which thin, moderately branching roots grow from the stem.
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