Types of Roots Outline Roots Review v Types

  • Slides: 18
Download presentation
Types of Roots

Types of Roots

Outline Roots Review v. Types of Roots v Tap root Adventitious root v. References

Outline Roots Review v. Types of Roots v Tap root Adventitious root v. References

Outline Roots Review Types of Roots v Tap root Adventitious root References

Outline Roots Review Types of Roots v Tap root Adventitious root References

Roots Review the root is the organ of a plant that typically lies below

Roots Review the root is the organ of a plant that typically lies below the surface of the soil. Roots can also be aerial or aerating, that is, growing up above the ground or especially above water.

Roots Review A root's four major functions are : 1) absorption of water and

Roots Review A root's four major functions are : 1) absorption of water and inorganic nutrients 2) anchoring of the plant body to the ground, and supporting it 3) storage of food and nutrients 4) vegetative reproduction and competition with other plants.

Outline Roots Review v. Types of Roots Tap root Adventitious root References

Outline Roots Review v. Types of Roots Tap root Adventitious root References

Types of Roots There are two types of roots : Tap root 2. Adventitious

Types of Roots There are two types of roots : Tap root 2. Adventitious root 1.

Tap root �A taproot is a large, central, and dominant root from which other

Tap root �A taproot is a large, central, and dominant root from which other roots sprout laterally. Typically a taproot is somewhat straight and very thick, is tapering in shape, and grows directly downward.

Tap root The shape of taproots can vary but the typical shapes include: Conical

Tap root The shape of taproots can vary but the typical shapes include: Conical root 2. Fusiform root 3. Napiform root 1.

Tap root 1. Conical root - this type of root tuber is conical in

Tap root 1. Conical root - this type of root tuber is conical in shape, i. e. widest at the top and tapering steadily towards the bottom: e. g. carrot.

Tap root 2. Fusiform root - this root is widest in the middle and

Tap root 2. Fusiform root - this root is widest in the middle and tapers towards the top and the bottom: e. g. radish.

Tap root 3. Napiform root - the root has a top-like appearance. It is

Tap root 3. Napiform root - the root has a top-like appearance. It is very broad at the top and tapers suddenly like a tail at the bottom: e. g. turnip.

Outline Roots Review v. Types of Roots Tap root Adventitious root References

Outline Roots Review v. Types of Roots Tap root Adventitious root References

Adventitious Root �Roots that grow from any part of plant other than the radicle

Adventitious Root �Roots that grow from any part of plant other than the radicle or its branches are called adventitious roots (L. adventitious— extraordinary).

Adventitious Root �In some plants roots start from the stem above the soil, that

Adventitious Root �In some plants roots start from the stem above the soil, that is, above the collar, and afterwards go down into the earth. � Adventitious roots grow above the collar. �For example, mangrove, bamboo, maize and rice all have adventitious roots.

Adventitious Root �A rice plant • Soil put around the collar helps adventitious roots

Adventitious Root �A rice plant • Soil put around the collar helps adventitious roots to grow; the plant is earthed up. A plant with roots on the stems has adventitious roots.

Outline Roots Review Types of Roots Tap root Adventitious root v. References

Outline Roots Review Types of Roots Tap root Adventitious root v. References

References www. presentationszone. com https: //en. wikipedia. org www. nzdl. org

References www. presentationszone. com https: //en. wikipedia. org www. nzdl. org