Roots

Group members:

i) Beh Saw Chen

ii) Chieng Khai Sing

iii) Kimberly Chong Wei Ching

iv) Aastik Malhotra

Roots:

Roots, stems and leaves are the vegetative organs of flowering plants. They are the sites where the plants absorb, make, transport,store and use their nutrients(food).The root is the organ of a plant body that typically lies below the surface of the soil. They do not grow nodes,scales, leaves, or buds. A root first grows from the radicle of a seedinto the tap root. The tap root later branches out into the lateral root, fine roots and roots hairs. Normal roots are roots that grow downwards into the soil and is formed from radicle. Roots that grow from unusual locations, like nodes or leaf margins, are known as adventitious roots.


Root systems:~
There are two main root systems:
a)Tap root system and
b) Fibrous root system

a) Tap root system:

A tap root is a straight tapering roots that grows vertically downwards.It consists of a single main root from which the much smaller branch roots like the lateral roots, fine roots and root hairs arise. Plants with taproots are difficult to transplant. Transplanting is the technique of moving a plant from one location to another. Taproots develop from the radicle of the seed, which forms the primary root. It produces branches called the secondary roots, and they in turn produce branches to form tertiary roots. Examples: balsam, durian, rambutan

b) Fibrous Root System:~

The fibrous root system is the opposite of a taproot system. It is usually formed by thin, moderately branching roots growing from the stem. They can only grow in the top part of the soil. A fibrous root system is universal in monocotyledonous plants and ferns , and is also common in dicotyledonous plants.Examples: maize, grass,garlic