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Topic: Fibrous root system

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	Fibrous root system - Encyclopedia, History, Geography and Biography
		A fibrous root system (sometimes also called adventitious root system) is the opposite of a tap root system.
		A fibrous root system is universal in monocotyledonous plants and ferns, and is also common in dicotyledonous plants.
		A typical mature tree 30-50 m tall has a root system that extends horizontally in all directions as far as the tree is tall or more, but well over 95% of the roots are in the top 50 cm depth of soil.
	www.arikah.com /encyclopedia/Fibrous_root_system (185 words)

	Fibrous root system - Wikipedia, the free encyclopedia
		A fibrous root system (sometimes also called adventitious root system) is the opposite of a tap root system.
		A fibrous root system is universal in monocotyledonous plants and ferns, and is also common in dicotyledonous plants.
		A typical mature tree 30-50 m tall has a root system that extends horizontally in all directions as far as the tree is tall or more, but well over 95% of the roots are in the top 50 cm depth of soil.
	en.wikipedia.org /wiki/Fibrous_root_system (168 words)

	Root
		Their main function of roots is the anchorage, the absorption of water and minerals from the soil, and the transport of these substances to the rest of the plant.
		Roots originate from the radicle of the embryo during the germination of the seed and growth essentially at their tip for the activity of the root apical meristem
		The adventitious root system is typical of most Monocotyledons in which the primary root is ephemeral and sort living and adventitious root soon arise from stem or leaf tissue.
	www.cactus-art.biz /note-book/Dictionary/Dictionary_R/dictionary_root.htm (491 words)

	AllRefer.com - root, in botany (Botany, General) - Encyclopedia (Site not responding. Last check: 2007-10-16)
		root, in botany, the descending axis of a plant, as contrasted with the stem, the ascending axis.
		Root systems often far exceed in mass the aboveground portions of the plant: alfalfa roots sometimes reach 40 ft (12 m) in length, and the combined length of all the roots of a mature rye plant has been measured at 380 mi (612 km).
		In the center of the root the cells formed earlier by the embryonic cells of this layer differentiate into storage tissue and xylem and phloem vessels to conduct sap upward to the leaves and back down to nourish the root cells.
	reference.allrefer.com /encyclopedia/R/root1.html (522 words)

	Root Development of Field Crops: Chapter V
		A root system that is well established before the beginning of winter is better able to withstand the tearing or breaking of roots sometimes resulting from alternate thawing and freezing and heaving of the soil.
		The primary root system, consisting usually of a whorl of three roots with their branches, originates from the embryo and is the first to appear.
		Root elongation, under favorable conditions, is very rapid; sometimes, a growth rate of over half an inch a day is maintained for 6.0 to 70 days in the primary root system of winter wheat.
	www.soilandhealth.org /01aglibrary/010139fieldcroproots/010139ch5.html (6486 words)

	Root - Iridis Encyclopedia (Site not responding. Last check: 2007-10-16)
		The two major functions of roots are absorption and supply of water and inorganic nutrients to the plant, and its anchoring in the ground.
		The outside surface of a root is known as the epidermis.
		In monocotyledons, the xylem and phloem cells are located in a circle around the pith, or center of a monocot root's stele, whereas in dicotyledons, the xylem cells form a central "hub" with lobes, and the phloem cells fill in the space between the lobes.
	www.iridis.com /Root (1161 words)

	Root Development of Vegetable Crops: Chapter IV
		A typical plant had 119 fibrous roots extending in all directions from the base of the stalk from horizontally to vertically downward.
		Many of these roots were only 1 millimeter in diameter but the larger ones were 1.5 millimeters thick, at least throughout the first foot of their course.
		Compared with the onion of equal age the root system of leek spreads more widely, a fact that may be correlated with the practice of spacing leek plants a little farther apart than onions.
	www.soilandhealth.org /01aglibrary/010137veg.roots/010137ch4.html (966 words)

	Plant Roots
		The growth and metabolism of the plant root system is supported by the process of photosynthesis occurring in the leaves.
		Plants with fibrous roots systems are excellent for erosion control, because the mass of roots cling to soil particles.
		Root Tip: the end 1 cm of a root contains young tissues that are divided into the root cap, quiescent center, and the subapical region.
	facweb.furman.edu /~lthompson/bgy34/plantanatomy/plant_root.htm (929 words)

	Biology 2402 Notes - Roots
		Roots anchor the plant in the soil, absorb water and mineral nutrients from the soil, and transport these substances to the rest of the plant.
		Root hairs are extensions of the epidermal cells that greatly increase the surface area for water absorption.
		In roots that undergo secondary growth the vascular cambium arises by divisions of procambial cells that occur in between the primary xylem and primary phloem.
	www.ualr.edu /botany/roots.html (1595 words)

	Plant Roots (Site not responding. Last check: 2007-10-16)
		The growth and metabolism of the plant root system is supported by the process of photosynthesis occurring in the leaves.
		Plants with fibrous roots systems are excellent for erosion control, because the mass of roots cling to soil particles.
		Root Tip: the end 1 cm of a root contains young tissues that are divided into the root cap, quiescent center, and the subapical region.
	alpha.furman.edu /~lthompso/bgy34/plantanatomy/plant_root.htm (929 words)

	* Fibrous root - (Gardening): Definition
		fibrous root - The caliper (thickness) of most roots in a fibrous root system is about the same -- and that is usually, but not always, fine.
		Fibrous root - a root system where the roots are finely divided.
		Before planting container-grown clematis, gently loosen the thick roots of the large-flowered hybrids, but be careful with the fibrous roots of the small-flowered plants.
	en.mimi.hu /gardening/fibrous_root.html (804 words)

	Roots
		Root hairs extend the absorptive surface of roots that is in contact with moist soil several thousand-fold.
		Root hairs are short-lived, single-celled extensions of the epidermal cells near the growing root tip.
		Roots generally grow away from the light, and light inhibits root growth in corn, wheat, peas, and rice.
	www.unlv.edu /faculty/landau/roots.htm (1093 words)

	Rocky Mountain News: Home & garden
		Roots have some important responsibilities: They anchor the plant firmly in the soil and have an uncanny ability to extract water and minerals from the soil.
		Fibrous rooted plants have a root system that branches and rebranches (no single main root) and tends to lie closer to the soil surface.
		If you have ever "root pruned" a tree or shrub with a fibrous root system prior to transplanting, you essentially cut off the growing tips of the roots (similar to pinching the ends of branches to make them fuller).
	www.rockymountainnews.com /drmn/garden/article/0,2777,DRMN_23954_5031562,00.html (634 words)

	Root (Site not responding. Last check: 2007-10-16)
		Roots will generally grow in any direction where the correct environment of air, nutrients and water exists that meets that plant's needs.
		the primary root is not dominant : the whole root system is fibrous and branches in all directions.
		In some plants (such as ivy), the "root" actually clings to walls and structures; this is known as thigmotropism, or response to touch.
	www.worldhistory.com /wiki/R/Root.htm (1245 words)

	Roots \| Macmillan Plant Sciences
		Roots, on the other hand, are often underground, but the root system can be every bit as massive as the aboveground shoot system.
		Roots are so critical to plant survival that a sprouting seedling devotes its first days to root growth before allowing leaves to pop out of the seed.
		The primary root, or radicle, is the first root to emerge from the seed.
	www.bookrags.com /research/roots-plsc-04 (459 words)

	Grass Roots
		Although the relative importance of altered root morphology (root density, length, root hairs, etc.) vs. uptake kinetics is still debatable, it seems clear that many plant species are capable of rapidly adjusting both their morphology and physiology in the acquisition of limiting essential resources that become available in a localized patch of soil.
		You can see evidence of a root signal when one half of the root system is grown in a pot containing soil that is fully hydrated, while the other half is grown in a separate pot containing soil that has been depleted of moisture.
		Roots seem to be able to “measure” the degree of soil drying and send a corresponding chemical message to the leaves where stomatal conductance and transpiration are reduced.
	grounds-mag.com /mag/grounds_maintenance_grass_roots_2 (2528 words)

	Lesson 6
		Roots can vary in size from the unbelievable 14 million root segments totaling 380 miles in length in an adult rye plant (a grass-like plant with a fibrous root system) to the unexpectedly shallow root system for some large trees.
		Fibrous roots occupy a large volume of soil around the plant's base and since they grow relatively close to the soil surface they are effective at controlling soil erosion.
		Indicate whether the root is has a fibrous or a tap root system (or a combination of both).
	www.4j.lane.edu /~whitley/botany/lessons/lesson06/botless6.html (1254 words)

	Lesson 7
		Roots are an often overlooked part of plants primarily because they are hidden beneath the soil ('out of sight, out of mind').
		Fibrous roots occupy a large volume of soil around the plant's base and since they grow relatively close to the soil surface they are effective at controlling soil erosion.
		Indicate whether the root is has a fibrous or a tap root system (or a combination of both).
	web4j1.lane.edu /~whitley/botany/lessons/lesson06/botless6.html (1254 words)

	* Fibrous root system - (Gardening): Definition
		Trees that develop a shallow, fibrous root system, such as sugar maple, are extremely competitive with turfgrass for moisture.
		Once a cutting has established young roots it can be potted up to develop a more fibrous root system, when it will be ready to plant out into the ground, this usually takes from between 18 months and 2 years,...
		There probably won't be much of a fibrous root system to hold a root ball together.
	en.mimi.hu /gardening/fibrous_root_system.html (469 words)

	INTRODUCTION
		The byproduct of this early root manipulation was a seedling considered superior to transplants because of a well defined sturdy root system and a sturdy form (Racey and Racey, 1988).
		The attributes of a fibrous root system are important to a young, transplanted seedling's establishment and survival.
		Root pruning has been shown to increase both the amount of root surface area and the percentage of the total root system.
	www.forestry.auburn.edu /sfnmc/class/fy614/undercut.html (4976 words)

	Tree Roots
		The roots of young seedling trees are often classified as to either having a tap root (most oaks, walnut, hickory) or having a fibrous root system (maples, ash, cottonwood).
		Root systems may occupy an area four to seven times the surface area occupied by the crown of the tree.
		Another way to view the root system is to consider that a seedling may have 2 to 6 feet of root length while the root system of a mature oak tree may be hundreds of miles in length.
	www.ag.iastate.edu /departments/forestry/topics/misc/roots.html (919 words)

	Plants Root System - The best plants products, sites and information on the web today! (Site not responding. Last check: 2007-10-16)
		Root Development of Vegetable Crops: Chapter XX Beans belong to a family of plants (the Leguminosae) which, with the possible exception of the grasses, ranks first in agricultural importance.
		The root system was characterized by a strong, nearly vertically descending taproot and multitudes of long...
		Variability in the root system of East African banana genotypes Variability in the root system of East African banana genotypes The banana (Musa spp.) root system is important for plant anchorage and the uptake of nutrients and water and thus,...
	plants.cbdirs.com /index.php?k=plants-root-system (1175 words)

	AZ Master Gardener Manual: Roots
		A thorough knowledge of the root system of plants is essential if their growth, flowering, and fruiting responses are to be understood.
		The structure and growth habits of roots have a pronounced effect on the size and vigor of the plant, method of propagation, adaptation to certain soil types, and response to cultural practices and irrigation.
		A fibrous root system is one in which the primary root ceases to elongate, leading to the development of numerous lateral roots.
	ag.arizona.edu /pubs/garden/mg/botany/roots (855 words)

	BIO 5 GENERAL BIOLOGY
		This type lacks a tap root and is comprised of roots that all arise from the base of the stem.
		The center of the root is the location of the vascular tissue, the xylem and the phloem.
		This cell layer is the boundary between the root environment and the root interior.
	www.csus.edu /indiv/r/reihmanm/root_stem_leaf.htm (1035 words)

	Botany 1050
		As most tree seedlings grow to sapling and then tree size, the main root stops growing and the lateral roots increase in size and number, eventually forming a large, woody, fibrous root system.
		Root hairs are very fine outgrowths of single epidermal cells that may extend several millimeters into the soil.
		In those dicots which develop woody roots, a layer of parenchyma cells between the primary xylem and phloem can divide and form secondary xylem and secondary phloem, causing the root to grow in diameter.
	arnica.csustan.edu /carosella/Boty1052/roots.htm (1228 words)

	The Whitcomb™ System
		Once a fibrous root system has been created, it is time for the next step or shift to a larger container.
		With the knit fabric container, small roots escape but are unable to expand, causing a constriction which leads to branching of the root system and an accumulation of energy.
		Root death on the sun-exposed side of a fl plastic container is a common, frustrating occurrence.
	www.rootmaker.com /whitsys.php (2246 words)

	Roots
		Fibrous root systems don't go as deep as taproots, but they spread laterally and hold the soil together, therefore they are good ground covers to prevent erosion.
		The root apical meristem is composed of small many sided cells, the initials, and their immediate derivatives.
		In roots that undergo secondary growth the vascular cambium arises by divisions of procambial cells that remain meristematic and occur in between the primary xylem and phloem
	arnica.csustan.edu /boty1050/Roots/roots.htm (933 words)

	Roots, Stems, and Leaves
		Roots hold a plant in the ground and keep it from blowing away or washing away.
		There are tubes in the roots which carry the water and minerals to the rest of the plant.
		fibrous root system, there are several main roots with many smaller branching roots.
	www.dmturner.org /Teacher/Library/4thText/PlantsPart2.html (731 words)

	Taproot - Wikipedia, the free encyclopedia
		A plant's taproot is a straight tapering root that grows vertically down.
		A taproot system contrasts to a fibrous root system, with many branched roots.
		napiform root : is broader than it is long, e.g.
	en.wikipedia.org /wiki/Taproot (238 words)

	lb4pg3 (Site not responding. Last check: 2007-10-16)
		The root constitutes the underground portion of the plant axis.
		The anchoring ability of the root depends on the substrate in which they are found, the size of the roots and the mode of root branching.
		Stele -- the central portion of the root whose outer extremity is termed the pericycle.
	io.uwinnipeg.ca /~simmons/lb4pg3.htm (421 words)

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