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root
root
root Underground portion of a
vascular plant that serves as an anchor, and absorbs water and minerals from the soil. Some plants, such as the dandelion, have taproots with smaller lateral branches. Other plants, such as grasses, develop fibrous roots with lateral branches.
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Understanding root forms: knowing how roots grow and utilize the soil is critical to proper tree management.(TREE MAINTENANCE)
Magazine article from: Arbor Age; 10/1/2007; ; 700+ words
; ...systems (also called heart root systems), have roots growing at many different angles...percent of all trees have sloping root systems where the roots appear to radiate from a common...structures that form on non-woody roots: root hairs and mycorrhizae. Root...
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Root exudation and rhizosphere biology1
Magazine article from: Plant Physiology; 5/1/2003; ; 700+ words
; ...into the soil by roots are broadly referred to as root exudates. Through...area in which the roots must compete with the invading root systems of neighboring...rhizosphere. Root-Root Communication In natural settings, roots are in continual...
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Fibrous root system development: improving tree health in urban plantings.(TREE MAINTENANCE)
Magazine article from: Arbor Age; 3/1/2008; ; 700+ words
; ...container. The copper is toxic to roots, so root pruning occurs. Misuse of...ILLUSTRATION OMITTED] 4) Root suffocation -- Roots growing in containers with...branch behind this point. 6) Root constriction -- Roots can be forced to branch behind...
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Root Physiology.(TREE SCIENCE)
Magazine article from: Arbor Age; 7/1/2009; ; 700+ words
; ...organic material to the soil. Non-woody roots shed dying and dead root hairs and epidermal cells. Soil microorganisms...and recycle elements essential for life. Root hairs do not become lateral roots. Root hairs and mycorrhizae are alive and well...
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Root Cause.(pruning tree roots)
Magazine article from: Arbor Age; 5/1/2001; ; 700+ words
; ...and how to prune tree roots significantly impact...The objective for root pruning is always to...process, he "likes to root prune all mangled roots in the construction...the cut. To make the root cut, sever the roots by forcing a sharp...
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The Roots of the Matter.
Magazine article from: SportsTURF; 6/1/2000; ; 700+ words
; ...It will focus on roots and root systems of both cool...the main functioning root system for the plant. Adventitious roots also will form at...plant. Turfgrass roots are fibrous and multi-branched. Each root tip is covered by...
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Root Development and Nutrient Uptake
Magazine article from: Critical Reviews in Plant Sciences; 1/1/2006; ; 700+ words
; ...configuration and distribution of these roots determine root system architecture in the soil...configuration and distribution of these roots determine root system architecture in soil...is directly utilized by the roots, and thus root growth largely depends on the...
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Proteoid roots. Physiology and development
Magazine article from: Plant Physiology; 10/1/1999; ; 700+ words
; ...described the unusual root morphology of plants...extensively branched roots covered with long...closely spaced lateral roots (rootlets) of limited...The terms proteoid root, cluster root, and...Fig. 213) and root hairs extending to...Determinacy in lateral roots also occurs ...
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'Roots' virtue great and rare Gripping '77 miniseries told a black story from a black perspective
Newspaper article from: Chicago Sun-Times; 1/22/2002; ; 700+ words
; ...that it has been 25 years since the miniseries "Roots" made television history. "Roots" is based on Alex Haley's award-winning book...same name that traces his family's tree from its roots in Africa to its branches in slavery and its fruit...
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Root May Have Faked Unconsciousness, Investigators Say
Newspaper article from: The Washington Post; 7/20/1989; ; 700+ words
; Washington pilot and lawyer Thomas L. Root may have feigned unconsciousness while military...suggested yesterday. Military pilots who intercepted Root have told investigators that they saw Root's head turn several times and that the small plane...
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Roots
Book article from: Plant Sciences
...similar-sized branch roots that combine into a fibrous root system. Long taproots...evaporates. Fibrous roots also stabilize soil, reducing erosion. Root Functions Most root...youngest part of roots, usually 10 centimeters...from the growing root tip. Four activities...
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root
Book article from: The Oxford Pocket Dictionary of Current English
...cacti have deep and spreading roots a tree root. ∎ the persistent...a plant or cutting) to grow roots: root your own cuttings from stock plants...personal taxation. strike at the root (or roots ) of affect in a vital area with...
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Root System
Encyclopedia entry from: The Gale Encyclopedia of Science
...important to the plant. Roots have four regions: a root cap; a zone of division...toward the light, and the root cap would direct the roots to grow down-ward...grasses, have fibrous root systems formed from many roots of more or less equal...
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Roots, The
Dictionary entry from: Baker's Biographical Dictionary of Popular Musicians Since 1990
THE ROOTS Formed: 1987, Philadelphia, Pennsylvania...attitude, and jazz-influenced sound, the Roots are standard bearers for the neo-soul and...of live instrumentation in hip-hop. The Roots' origins can be traced to the Philadelphia...
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Root Canal Treatment
Encyclopedia entry from: Gale Encyclopedia of Medicine, 3rd ed.
...more expensive. Description Root canal treatment may be performed...natural crown of the tooth to the root tips in the jawbone. Pus accumulates at the ends of the roots, forming a painful abscess...is little noticeable pain. Root canal treatment is performed...
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