They may not necessarily emerge from the main stem. Rhizomes, in contrast, are root-like stems that may either grow horizontally at the soil surface or in other orientations underground. Forage Information System What is a stolon? In botany and dendrology, a rhizome is a modified subterranean plant stem that sends out roots and shoots from its nodes. Rhizomes develop from axillary buds and grow horizontally. A grass that has the characteristic of producing many stolons is described as a stoloniferous grass. You also have the option to opt-out of these cookies. The below series of photos illustrate a zoysiagrass spreading into a pine straw bed via a rhizome. The main difference between stolon and rhizome is that stolon does not belong to the main stem of the plant whereas rhizome is a part that belongs to the main stem. Whether or not companion grasses flourish varies with their stage of develoment when defoliated. They may look like the main stem but unlike the main stem, they grow horizontally. 109 Crop Science Building The bluegrass was not adversely affected because it produces many non-flowering shoots, whose growing points remain at the soil surface. As a consequence, intensive defoliation removes a large proportion of the above-ground meristematic regrowth mechanisms; the shoot growing point and the intercalary merisitem at the collar zone of leaf blades. Our site includes quite a bit of content, so if you're having an issue finding what you're looking for, go on ahead and use that search feature there! Stolons bear nodes and internodes from where roots emerge, giving rise to a new plant, which is often referred to as daughter plant. Understanding which grasses have stolons and rhizomes is important for management purposes. They may not necessarily emerge from the main stem. It is mandatory to procure user consent prior to running these cookies on your website. The differences between the two are discussed below: Stolons♦ Stolons are offshoots of the existing stem of the plant. A rhizome is a segmented, subterranean, modified stem arising from an adventitious bud in the crown zone. With a little digging, the rhizome is exposed and removed. Stolons are often called runners. These cookies do not store any personal information. (Bermudagrass has rhizomes that develop and remain close to the soil surface and therefore some call them stolons.). Effective control includes using a weed eater to cut the visible stolons. Subscribe to our e-newsletter below if you haven’t done so already to receive the latest updates from Sod University. Stolons and rhizomes move away from the main plant, and primarily help in reproducing the plant at some other site. This killed the grass because another cycle of basal (adventitious) buds had not produced new shoot initials. Stolons also arise from an adventitious bud in the crown zone. Stolons are horizontal, above-ground stems. The clone plant then sends down roots and establishes itself as an independent plant before repeating the process. The former is slender and long, while the latter is thick and short. Rhizomes♦ In most cases, rhizomes grow below the ground, hence are often referred to as underground stems. Stolons♦ Since stolons are thin and narrow, their storage capacity is comparatively less. Rhizomes♦ Rhizomes tend to show short internodes. The bromegrass was eliminated and the sod was certified and sold. Although stolons and rhizomes exhibit similar functions, they are different structures of the plant. 1″ Auger Bit – Grass Plug Installation Tool. These species differ in their rhizome vigor. We also use third-party cookies that help us analyze and understand how you use this website. The first step was to mow low when bromegrass commenced to produce an erect stem (jointing or transition stage). Grasses which spread laterally via rhizomes or stolons are often characterized as invasive species.
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