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Secondary root

Biology  Secondary phloem  Secondary Structure

secondary roots. The network of fine roots that develops from the primary roots of a strawberry plant and picks up water and nutrients from the soil; white roots.
secondary spread. The spread of a pathogen within a field after the initial or primary infection.


Secondary roots are ramifications of the primary (main) root. The secondary roots emerge from the pericycle, inner tissue of the root. The shoots originate from the lateral buds of the stem. Therefore the origin of the secondary roots is endogenous and the origin of the shoots is exogenous.

Primary and secondary roots in a cotton plant
In vascular plants, the root is the organ of a plant body that typically lies below the surface of the soil (compare with stem).

Pericycle - the outer boundary of the stele. Secondary roots branch from it.
Xylem - arranged in bundles in a spokelike fashion
Phloem - alternates with xylem ...

Roots on the other hand they have one primary root with a bunch of secondary roots coming off of it with thousands of root hairs coming off of individual cells.

Anatomic structure of seminal root, ~, stem and leaf of Psathyrostachys huashanica Keng. were studied by means of paraffin wax section method. Results indicate that the Psathyrostachys huashanica Keng formed various types of structures so as to adapt to the drought environment.

The primary root gives off many lateral branches known as ~s.
These ~s further branch to give rise to tertiary roots.
Terttiary roots further branch into rootlets and they bear root hairs for absorption.

A taproot, characteristic of dicots, is a single dominant root from which smaller, ~s extend. Fibrous roots, a system composed of many small roots, have no single dominant root. Taproots stretch deep into the soil, while fibrous roots spread out close to the surface.

SEEDS ARE STARTING TO FORM INTO SEEDLINGS WITH PRIMARY AND ~S STARTING ALONG WITH THE BEGINNING OF THE STEM (HYPOCOTYL) PUSHING THE BEAN COTYLEDONS UP. ALSO TODAY STUDENTS ASSEMBLED THEIR POLE PLANTER WHICH THEY WILL START TO GROW SEEDLINGS TOMORROW.

See also: See also: What is the meaning of Roots, Plant, Trans, Cells, Tissue?

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