FACTOID # 56: In 1919, Kenya became the first African colony to give women the right to vote.
 
 Home   Encyclopedia   Statistics   Countries A-Z   Flags   Maps   Education   Forum   FAQ   About 
 
WHAT'S NEW
RECENT ARTICLES
More Recent Articles »
 

Encyclopedia > Layering

Layering is a technique for plant propagation in which a portion of an aerial stem is encouraged to grow roots while still attached to the parent plant, and then removed and planted as a new plant. Plant propagation is the process of artificially or naturally propagating (distributing or spreading) plants. ... In common parlance, a stem is any elongated, usually narrow, extension or supporting structure of an object. ... In vascular plants, the root is that organ of a plant body that typically lies below the surface of the soil (compare with stem). ...


The process typically involves wounding the target region and optionally applying rooting compounds. In ground layering, the stem is bent down and the target region buried in the soil. In air layering, the target region is surrounded in a moisture-retaining wrapper such as sphagnum moss, which is further surrounded in a moisture barrier such as polyethylene film. In either case, the rooting process may take from several weeks to a year. IAA appears to be the most active Auxin in plant growth. ... Polyethylene or polyethene is an engineering thermoplastic heavily used in consumer products. ...


Layering is more complicated than taking cuttings, but has the advantage that the propagated portion can continue to receive water and nutrients from the parent plant while it is forming roots. This is important for plants that form roots slowly, or for propagating large pieces. Cutting is the separation of a physical object, or a portion of a physical object, into two portions, through the application of an acutely directed force. ... Water (from the Old English word wæter) is a colorless, tasteless, and odorless substance that is essential to all known forms of life and is known also as the most universal solvent. ... Nutrients and the body A nutrient is any element or compound necessary for or contributing to an organisms metabolism, growth, or other functioning. ...


External links


  Results from FactBites:
 
Layer - Wikipedia, the free encyclopedia (179 words)
In telecommunications a layer is an F region.
In object-oriented design a layer is a group of classes that have the same set of (link-time) module dependencies to other modules, i.e.
Layer de la Haye is a villige in Essex, United Kingdom.
OSI model - Wikipedia, the free encyclopedia (1224 words)
Usually, the implementation of a protocol is layered in a similar way to the protocol design, with the possible exception of a 'fast path' where the most common transaction allowed by the system may be implemented as a single component encompassing aspects of several layers.
The data link layer provides the functional and procedural means to transfer data between network entities and to detect and possibly correct errors that may occur in the Physical layer.
The network layer provides the functional and procedural means of transferring variable length data sequences from a source to a destination via one or more networks while maintaining the quality of service requested by the Transport layer.
  More results at FactBites »

 

COMMENTARY     


Share your thoughts, questions and commentary here
Your name
Your location
Your comments
Please enter the 5-letter protection code


Lesson Plans | Student Area | Student FAQ | Reviews | Press Releases |  Feeds | Contact
The Wikipedia article included on this page is licensed under the GFDL.
Images may be subject to relevant owners' copyright.
All other elements are (c) copyright NationMaster.com 2003-5. All Rights Reserved.
Usage implies agreement with terms.