Difference Between Corm and Bulb
There are several differences between Corn and Bulb which includes:
|
Characteristics |
Corm |
Bulb |
|---|---|---|
|
Shape |
It has solid, fleshy underground stem growing vertically. It is spherical, elongated and compressed. |
It is spherical or pyriform. |
|
Structure |
It is usually unbranched, round and swollen stem base with scaly leaves. |
Consist of short convex disc, from the upper surface of which fleshy scale leaves arise. |
|
Type |
It is underground stem modification. |
Condense shoot that grow underground. |
|
Stem |
Enlarged and swollen |
Conical |
|
Buds |
External buds. |
Buds internal and remain covered with fleshy leaves. |
|
Adventitious root |
Developed all over the stem. |
Develop downward from the bulbous disc. |
|
Example |
Colocasia, crocus. |
Onion, Garlic |
|
Food storage |
It contains a heavy deposit of food material in stem. |
Food is stored in the fleshy leaves. |
|
Tunic |
It is absent |
It is present |
|
Nodes |
Circular nodes are present. |
Distinct nodes are present. |
|
Cork |
It is surrounded by cork. |
Cork is absent. Bulb are covered by layer tunic. |
|
Growth and propagation |
Usually on the sides or above the stem. |
New bulbs are replaced by old ones. |
Difference Between Corm and Bulb
Differences between Bulb and Corm lie in their structure and composition. Though both are modified underground stems, bulbs and corms have many differences. Corms are swollen stems storing food reserves, while bulbs consist of layers of modified leaves storing nutrients for growth.
Corms and bulbs are involved in vegetative propagation in plants. Corm examples include crocus and gladiolus plants and Bulb examples include tulips and onions. In this article, we will read the difference between bulbs and corm in detail.
Table of Content
- What are Bulbs in Plants?
- What is Corm in Plants?
- Difference Between Corm and Bulb
- Conclusion – Differences Between Corm and Bulb
- Difference Between Related Links