What is the bulb, rhizome, tuber

What types of root systems do you know? Can plants reproduce using one or another part of the material, how can I transplant a plant with a branched or complex root system? These and not only questions will be considered in the article.

The aerial part of more than 75% of plants annually dies. Under the upper fertile soil layer, the root system remains in its original or modified form. Such systems are somewhat different from ordinary roots (above ground). In a modified form, the shoots look like tubers, bulbs and rhizomes.

Rhizomes

Rhizomes can be seen in nettles, wheatgrass, iris, lilies of the valley, an indoor plant of aspirid.

Having dug out any plant from the ground, it can be replaced that its lower part ends with a root. Rhizome is different in that, as in aerial shoots, forms apical and axillary buds, membranous scales. The adventitious roots extend from the rhizome itself , and young aerial shoots filled with force from the kidneys. During this process, substances deposited by the plant "in reserve" from autumn are involved.

What is a bulb?

Important! If a small part of the rhizome is planted in the ground as a new plant, it will take root and will soon be able to function independently. Some of the ornamental plants multiply by dividing the rhizome into several parts.

Tubers

Tubers breed few plants. A typical representative is potatoes. A tuber is the apical thickening of a stolon. Their internodes are short, not containing chlorophyll, but greening under sufficient light. You probably noticed that on the surface of each tuber (in small indentations) 2-3 buds are located.

Bulbs and Rhizomes

Important! Remember that the eyes are larger in the part of the potato that is considered apical. The opposite side is the base by which the tuber connects to the stolon.

Having examined some of the botanical features and characteristics of potatoes, it is not so difficult to determine what a tuber is. This is a modified underground escape.

The presence of a tuberous root system is characterized by: Corydalis, forage plant Jerusalem artichoke.

Bulbs

At the bottom of the onion bulb is the bottom, which looks like a flat stem. Modified leaves at the bottom are flakes. Outwardly they are dry and compared to the skin of a plant, inside they are fleshy and juicy. They store supplies of water, sugar and nutrients. At the bottom are traces of the kidneys, which are hidden in scaly sinuses. So what is a bulb? If you study the characteristics, it becomes clear that the bulb is also a modified shoot.

Having planted it in the garden, you can see how soon the plant will sprout, forming a fibrous root system at the bottom of the bottom . Sometimes young onions develop from the kidneys, which have received a gentle name - "children". Each of the bulbs in the future gives a separate independent plant.

Bulbs are

What is an onion, of course. It remains only to clarify that the onion formation is characterized by: onions, lily, tulip, daffodil, wild goose onions. All these plants are perennial.

Now you know in general terms what types of underground root systems are and how easy it is to distinguish them in appearance.

Source: https://habr.com/ru/post/D523/


All Articles