Adventitious roots do not sprout from primary roots.
They can form from shoot tissues, stem cutting, leaf petioles, and can be useful during cloning of plants.
Hence, C. Sprout from primary roots, is not a characteristics of adventitious roots.
- Adventitious root sprouts from injured roots, branch, stem or any other tissues in a plant that sustains some form of injury.
- Not only from injury can they be formed, they also grow naturally as can be seen in climbing plants such as ivy.
- Adventitious roots can also grow from cuttings of stems. During layering, adventitious roots also form. This makes it easy when cloning is being done using stem cuttings.
- All the options given in the answer choices are characteristics of adventitious roots except the statement that says: sprout from primary roots.
See image below that shows how adventitious root looks like.
- Adventitious roots do not sprout from primary roots, but they can form from shoot tissues, stem cutting, leaf petioles, and are useful during cloning of plants.
Therefore, C. Sprout from primary roots, is not a characteristics of adventitious roots.
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