about the pruning of plants in general the pruning of fruit bearing trees Fruit tree pruning other uses ... thumb right Pruning dense growth after shearing Pruning is a horticulture horticultural practice ... plants . Specialized pruning practices may be applied to certain plants, such as Rose Pruning roses , fruit tree pruning fruit trees , and Viticulture Pruning grapevines . Different pruning techniques ..., are usually but not exclusively maintained by hedge trimmer hedge trimming , rather than by pruning ... conditions such as wind , ice pruning ice and snow , and Salt pruning can cause plants to self ... pruning cuts to young plants, when possible, rather than removing large, poorly placed branches from mature plants. Pruning landscape and amenity trees Image Pruning when there s a branch collar.jpg 250px thumb right Pruning when there s a branch collar Note the swollen area where the branch ... 250px thumb right Pruning when there s a collarless union Note there s no swollen area where the branch ... ridge Image co dominant1.JPG 250px thumb right Pruning when it s a codominant stem Note the bottom ... furniture. Lifting the crown will allow traffic and pedestrians to pass underneath safely. This pruning ... or formative pruning Removal of appropriate branches to make the tree structurally sound whilst shaping it. Vista pruning Selectively pruning a window of view in a tree. Crown reduction Reducing the height ... form of pruning where certain deciduous species are pruned back to pollard heads every year in the dormant ... of the practice. Types of pruning Regardless of the various names used for types of pruning, there are only ... 129.htm The Basics of Pruning ref Removing a portion of a growing stem down to a set ... in a desirable direction. Also commonly known as heading back . Thinning A more drastic form of pruning ... of new growth that will more readily bear fruit and flowers. This is a common technique in pruning Rose Pruning roses and for implifying and opening up the branching of neglected tree s, or for renewing ... more details
PLEASE READ Wikipedia Disambiguation dos and don ts wiktionarypar pruningPruning is the practice of removing unwanted portions from a plant. Pruning may also refer to Synaptic pruning , the reformation of neural structure by pruning excess neurons or neural clusters Pruning algorithm , a method of simplification of a decision tree The Pruning morphology algorithm, a technique used in digital image processing based on mathematical morphology Pruning viticulture , how pruning is used in vine training systems Pruning vascular , in prenatal development , the disappearance of blood vessels which are no longer needed Pruning microeconomics , the removal of excess items from a budget Pruning maceration , in dermatology , the softening, whitening, and wrinkling of skin that is soaked in water disambig br Ment de Taille Begriffskl rung fr Taille lb Taille nl Taille ... more details
Unreferenced date December 2009 Orphan date December 2009 A pruning poem is a poem that uses rhyme s that are prunings of each other. Each rhyme word is one letter shorter than the rhyme word before. Otherwise, they are the same word. While it is possible to write a pruning poem in couplet s or longer, it is most effective when the reader sees the pruning on the page. Thus, George Herbert , who conducted many formal experiments in verse, writes Paradise as a pruning poem. What open force, or hidden u charm u Can blast my fruit, or bring me u harm u While the inclosure is thine u arms u ? Pruning could be accomplished by cutting terminal as well as initial letters, but initial position pruning is the more common and noticeable. DEFAULTSORT Pruning Poem Category Rhyme Category Poetic devices ... more details
pruning , neuronal pruning or axon pruning refer to neurological regulatory processes, which facilitate ... more efficient synaptic configurations. Pruning is a process that is a general feature of mammalian neurological development. Pruning starts near the time of birth and is completed by the time of sexual ... of pruning in simulated large scale spiking neural networks journal BioSystems volume 79 issue ... is seen after adolescence reflecting synaptic pruning, and approximately 50 of neurons during development ... first2 HJ. year 2006 title Axon pruning an essential step underlying the developmental plasticity of neuronal ... rstb.2006.1883 ref Pruning is influenced by environmental factors and is widely thought to represent learning. Variations of Synaptic Pruning Regulatory Pruning At birth, the neurons in the visual ... of pruning is known as large scaled stereotyped axon pruning. Neurons send long axon branches ... 2010 title Guidance Molecules in Axon Pruning and Cell Death journal Cold Spring Harbor Perspectives ... and mature circuitry. Apoptosis and pruning are the two main methods of severing the undesired ... eliminated. In contrast, the neuron does not die in pruning, but requires the retraction of axons ... pruning is to remove unnecessary neuronal structures from the brain as the human brain develops ... title Neuronal Regulation a mechanism for synaptic pruning during brain maturation journal Neural ... with regulation of cognitive childhood development, pruning is thought to be a process of removing ... name chechik 1 Pruning in the Maturing Brain The pruning that is associated with learning is known as small scale axon terminal arbor pruning. Axons extend short axon terminal arbors toward neurons .... Examples seen in vertebrate include pruning of axon terminals in the neuromuscular junction in the peripheral nervous system and the pruning of climbing fiber inputs to the cerebellum in the central nervous system . ref name vander 1 In terms of humans, synaptic pruning has been observed through ... more details
Image Torrey pine.jpg right thumb A Torrey pine shaped by salt pruning. Salt pruning is the process by which saline mists generated by seawater are driven ashore by winds to alter the shape of trees or shrubs over considerable times throughout the growth cycle of the affected plant. The process of salt pruning selectively degrades foliage and branches on the windward side of the plant facing the body of saline water. The resultant growth form is an asymmetrical plant form, swept back away from the ocean. Examples There are numerous examples worldwide of this phenomenon. In the eastern United States on Long Island occurrences of salt pruned Quercus stellata are observed in Flax Marsh. ref Mineral Science Institute 2005 http www.eserc.stonybrook.edu 8080 FlaxPondDigitalLibrary FlaxPond index.html ref In San Diego County , California a colony of Pinus torreyana is found where salt spray driven mist from the Pacific Ocean has shaped many Torrey Pines via salt pruning. ref C.Michael Hogan 2008 Torrey Pine Pinus torreyana , Globaltwitcher, ed. Nicklas Stromberg http www.globaltwitcher.com artspec info.asp?thingid 62498 ref Salt Pruning is essentially a natural way of shaping trees and shrubery by the spray of oceanic bodies of water that allow saline spray to reach onto the shore See also Ice pruning Lone Cypress References reflist botany stub Category Physiological plant disorders ... more details
Ice pruning is the natural process of selective vegetative pruning on the windward side of a plant, executed by the impact of ice and snow particles driven by wind. ref William M. Marsh, 1978 ref The process is sometimes termed snow pruning . The time scale required for this phenomenon is typically over a multi year growth period moreover, a requirement to achieve the characteristic asymmetry is that prevailing winds during snow season has a decided bias in the wind rose . Examples Ice pruning is often seen in far northern latitudes, such as locations above 50 degrees northern latitude. In parts of northern Canada, Black Spruce dominant forests demonstrate some individual trees that are distinctively ice pruned. ref C. Michael Hogan, 2008 ref See also Salt pruning References C. Michael Hogan, http globaltwitcher.auderis.se artspec information.asp?thingid 44751 Black Spruce Picea mariana , GlobalTwitcher.com, ed. Nicklas Stromberg, November, 2008 William M. Marsh 1978 Environmental Analysis For Land Use and Site Planning , McGraw Hill, 292 pages ISBN 0070404909 Line notes reflist botany stub Category Physiological plant disorders ... more details
The pruning algorithm is a technique used in digital image processing based on mathematical morphology . It is used as a complement to the Topological skeleton skeleton and thinning algorithms to remove unwanted parasitic components. In this case parasitic components refer to branches of a line which are not key to the overall shape of the line and should be removed. These components can often be created by edge detection algorithms or Digitizing digitisation . The standard pruning algorithm will remove all branches shorter than a given number of points. The algorithm starts at the end points and recursively removes a given number n of points from each branch. After this step it will apply dilatation on the new end points with a 2 N 1 2 N 1 structuring element of 1 s and will intersect the result with the original image. If a parasitic branch is shorter than four points and we run the algorithm with n 4 the branch will be removed. The second step ensures that the main trunks of each line are not shortened by the procedure. See also Morphological image processing External links http reference.wolfram.com mathematica ref Pruning.html Morphological Pruning function in Mathematica DEFAULTSORT Pruning Morphology Category Digital geometry Category Mathematical morphology compu graphics stub comp sci stub es Poda morfolog a matem tica ... more details
Image Secateur ouvert.jpg thumb Bypass secateurs Pruning shears , also called hand pruners in American English , or secateurs are a type of scissors for use with plants. They are strong enough to pruning prune hard branches of trees and shrubs , sometimes up to two centimetres thick. They are used in gardening , arboriculture , farming , flower arranging , and nature conservation where fine scale habitat management is required. Loppers are a larger, two handed, long handled version for branches thicker than pruning shears can cut. Designs Image Pruning shears removableblade.JPG thumb left 200px Professional pruning shears often have replaceable blades There are three blade designs of pruning shears anvil , bypass and parrot beak . Anvil pruners have only one blade which closes onto a flat surface. They tend to crush the stem, but remain reliable when slightly blunt. Anvil secateurs are useful for cutting thick branches ref http www.secateurs and pruning.co.uk ref . Bypass secateurs usually work exactly like a pair of scissors, with two blades passing each other to make the cut. At least one of the blades will be curved a convex upper blade with either a concave or straight lower one. Some bypass designs have only one blade, the lower jaw being broad like an anvil but passing the upper jaw. Parrot beak secateurs consist of two concave passing blades, which trap the stem between them to make the cut. These are suitable only for narrower stems. ref cite book last Bird first Richard year 2002 title Garden Answers Pruning publisher Hamlyn location London isbn 0 600 61024 1 ref Handle length Image Averruncator.png thumb 200px Fig.1 shows the handle and head of an averruncator. Fig. 2 shows the head in use. Secateurs have short handle grip handle s and are operated with one hand. ref cite book title Oxford Dictionary of English origyear 1998 edition 2nd edition revised year 2005 publisher Oxford University Press location Oxford isbn 0198613148 ref A spring device spring between ... more details
Cleanup date May 2008 Pruning is a technique in machine learning that reduces the size of Decision tree learning decision tree s by removing sections of the tree that provide little power to classify instances. The dual goal of pruning is reduced complexity of the final classifier as well as better predictive ... is to grow the tree until each node contains a small number of instances then use pruning to remove ..., and Jerome Friedman. The Elements of Statistical Learning. Springer 2001, pp. 269 272 ref . Pruning ... set or using cross validation statistics cross validation . There are many techniques for tree pruning that differ in the measurement that is used to optimize performance. Techniques Pruning can occur in a top down or bottom up fashion. A top down pruning will traverse nodes and trim subtrees starting at the root, while a bottom up pruning will start at the leaf nodes. Below are several popular pruning algorithms. Reduced error pruning One of the simplest forms of pruning is reduced error pruning ... is not affected then the change is kept. While somewhat naive, reduced error pruning has the advantage of simplicity and speed. Cost complexity pruning Cost complexity pruning generates a series ... prune T,t math is chosen for removal. The function math prune T,t math defines the tree gotten by pruning .... See also Alpha beta pruning Artificial neural network Null move heuristic References Judea Pearl , Heuristics , Addison Wesley, 1984 Pessimistic Decision tree pruning based on Tree size ref name Mansour1997 citation last Mansour first Y. year 1997 title Pessimistic decision tree pruning based on tree ... 76752.html ref reflist Further reading MDL based decision tree pruning Decision tree pruning using backpropagation Neural networks External links http www.cis.upenn.edu mkearns papers pruning.pdf Fast, Bottom Up Decision Tree Pruning Algorithm http www.math.tau.ac.il mansour ml course scribe11.ps Introduction to Decision tree pruning Category Decision trees de Pruning pt Poda computa o ... more details
About pruning of fruit bearing trees the pruning of trees and other plants in general Pruning Refimprove ... trees that have recently been pruned to renew their health and cropping potential Pruning fruit ... wood , and stimulate the formation of flowers and bud fruit buds . Pruning often means cutting branch es back to laterals or back to the main stem using proper pruning techniques. It may also mean the removal of shoot s including stem s , buds, leaf leaves , etc. The most effective pruning is done ... of harvesting the sun when pruning fruit trees. Many homeowners make the mistake of planting a fruit tree, then neglecting it until it begins to bear fruit. Careful attention to pruning and training young trees will ultimately determine their productivity and longevity. Good pruning and training ... R.L. last Stebbins title Training & Pruning Your Home Orchard OSU date November 2007 publisher Pacific ... to prune plants properly, it is useful to have some underlying knowledge of how pruning works, and how ... this natural response to damage known as the principle of apical dominance by processes such as pruning ... of many fruiting trees and bushes. The main aim when pruning fruit trees is usually to obtain ... light crops of large, flavourless fruit that does not store well. Pruning is therefore carried out to achieve a balance between shoot growth and fruit production. Formative pruning of bush trees During ... and capable of bearing the weight of crops borne. In order to reinforce the tree, formative pruning should be carried out. Formative pruning of apple Malus pumila and pear Pyrus communis trees should ... The tree will have begun to fruit and only limited formative pruning is now required. Shorten leaders ... section. Pruning the cropping tree Image Spurpruning.png left 300px thumb Spur pruning Before pruning it is important to distinguish between spur bearing varieties, tip bearing varieties, and an intermediate ... three types of pruning that are applied once the main shape of the tree has been established. These are Image ... more details
Image Willow1.jpg thumb 300px A willow Salix viminalis ready to be shred. Unreferenced date June 2008 Shredding is a method of tree pruning by which all side branches are removed on a systematic basis. In some countries this can be used for animal fodder. Other woodland management techniques include pollarding and coppicing . See also Woodland management Category Forestry Category Horticulture and gardening Category Trees Forestry stub da Besk ring af planter es Poda fr mondage he it Potatura nl Snoeien pt Poda ... more details
In statistical genetics , Felsenstein s tree pruning algorithm or Felsenstein s tree peeling algorithm , due to Joe Felsenstein Joseph Felsenstein , is an algorithm for computing the likelihood of an evolutionary tree from nucleic acid sequence data. The algorithm is often used as a subroutine in a search for a maximum likelihood estimate for an evolutionary tree. Further, it can be used in a hypothesis test for whether evolutionary rates are constant by using likelihood ratio test s . It can also be used to provide error estimates for the parameters describing an evolutionary tree. References cite journal authorlink Joseph Felsenstein last Felsenstein first Joseph year 1981 title Evolutionary trees from DNA sequences a maximum likelihood approach journal J Mol Evol volume 17 pages 368 376 pmid 7288891 doi 10.1007 BF01734359 issue 6 genetics stub statistics stub Category Statistical genetics ... more details
other uses2 Alphabeta Tree search algorithm Alpha beta pruning is a search algorithm which seeks to decrease the number of nodes that are evaluated by the Minimax Minimax algorithm with alternate moves minimax algorithm in its game tree search tree . It is an adversarial search algorithm used commonly for machine playing of two player games Tic tac toe , Chess , Go board game Go , etc. . It stops completely evaluating a move when at least one possibility has been found that proves the move to be worse than a previously examined move. Such moves need not be evaluated further. When applied to a standard minimax tree, it returns the same move as minimax would, but prunes away branches that cannot possibly influence the final decision. ref name RN10 Cite book first Stuart J. last Russell first2 Peter last2 Norvig title Artificial Intelligence A Modern Approach url http aima.cs.berkeley.edu year 2010 edition 3rd publisher Pearson Education, Inc. publication place Upper Saddle River, New Jersey isbn 0 13 604259 7 author link Stuart J. Russell author2 link Peter Norvig page 167 postscript Bot inserted parameter. Either remove it or change its value to . for the cite to end in a . , as necessary. inconsistent citations ref History Allen Newell and Herbert Simon who used what John McCarthy ... of Alpha Beta Pruning journal Artificial Intelligence volume 6 issue 4 year 1975 pages 293 326 accessdate ... Beta Pruning Algorithm and its Optimality journal Communications of the ACM year 1982 month August ... of alpha beta pruning. The grayed out subtrees need not be explored when moves are evaluated ... the turn of the player and the adversary, respectively. The benefit of alpha beta pruning lies ... Pruning algorithm Branch and bound Minimax Combinatorial optimization Negamax Transposition table ... 6062.pdf http ksquared.de gamevisual launch.php?agent 2 Minimax with or without alpha beta pruning algorithm ... beta pruning using html5, canvas, javascript, css Game theory DEFAULTSORT Alpha Beta Pruning ... more details
Orphan date February 2009 In gardening , clipping is equivalent to pruning , the practice of removing disease s, over mature or otherwise unwanted portions from a plant . Clipping typically involves much less removal than pruning, and is used more for herbaceous all green plants than for wood y ones. References reflist Category Horticulture and gardening horticulture stub ... more details
wiktionarypar prune A prune is a dried fruit of various plum species. Prune may also refer to Pruning , the practice of removing undesired portions from a plant Wrinkle Pruney fingers Prune fingers , the wrinkling of skin after immersion in water See also Pruning disambiguation disambig da Besk ring fr Prune homonymie ... more details
other uses Image EN BESKYTTERINDE AF INDUSTRIEN.gif thumb 200px right A puta . In Roman mythology , according to Arnobius , Puta presided over the pruning of trees and was a minor goddess of agriculture. ref Arnobius , Ante Nicene Christian Library Translations of the Writings of the Fathers down to A.D. 325. Volume 19 The Seven Books of Arnobius Adversus Gentes , 2001, ISBN 1402168659 http books.google.com books?id iE0kF8LySnQC&pg PA190&vq puta&dq puta goddess pruning wikipedia&sig 2PwsY OXbssZaY4Ufdc2Wk OoRU p. 190. She is mentioned nowhere else. ref According to one version, the etymology of its name comes from Latin and its literal meaning is pruning. The festivities in honor of this goddess celebrated tree pruning, and these days, the priestesses manifested themselves exercising a sacred carousal prostituted themselves honoring the goddess which would explain the puta disambiguation current meaning of the word in many Latin speaking countries . References reflist Category Roman goddesses Category Nature goddesses Category Agricultural goddesses Ancient Rome myth stub da Puta pt Puta ... more details
wiktionary redirect Short pages monitor This long comment was added to the page to prevent it being listed on Special Shortpages. It and the accompanying monitoring template were generated via Template Longcomment. Please do not remove the monitor template without removing the comment as well. See also Coppice , a tree pruning practice which produces copses ... more details
The first two letters of the Greek alphabet from which the word alphabet is derived . Alpha Beta , California supermarket chain Alpha beta pruning , in game tree search Alpha beta filter , in data filtering smoothing Alpha beta brass , also known as Muntz metal, a 35 45 zinc alloy of brass disambig ... more details
Zax may refer to Andy Zax , Beat the Geeks co star, music producer and radio host The Zax , a Dr. Seuss character from The Sneetches and Other Stories Zax tool , a tool used for pruning slate roofing tiles Zax The Alien Hunter , a video game Zax, the flying robot from the movie Benji, Zax & the Alien Prince disambig ... more details
wiktionary loper Loper is a surname, and may refer to Bert Loper 1869 1949 , early Grand Canyon river runner Daniel Loper born 1982 , American football offensive tackle Don Loper 1906 1972 , American costume and necktie designer For the pruning tool loppers surname Category Surnames nl Loper ... more details
Deadheading can refer to the following Dead mileage , movement of commercial vehicles in in non revenue mode for logistical reasons Deadheading aviation , crew traveling as passengers for logistical reasons Deadheading railroads , crew traveling as passengers or movement of equipment in non revenue mode for logistical reasons Deadheading flowers , the pruning of dead flowerheads See also Deadhead disambiguation disambig ... more details
Felsenstein may refer to Johannes Felsenstein born 1944 , opera director Joseph Felsenstein born 1942 , phylogeneticist Felsenstein s tree pruning algorithm Lee Felsenstein born 1945 , computer engineer Walter Felsenstein 1901 1975 , theater and opera director surname de Felsenstein ... more details
Wiktionary Dieback may refer to a number of plant problems and diseases including Forest dieback caused by acid rain, heavy metal pollution, or imported pathogens The death of regions of a plant or similar organism caused by physical damage, such as from pruning Those caused by the genus Eutypa , such as Dead arm grapes Eutypa dieback Those caused by the genus Phytophthora , such as Phytophthora cinnamomi Phytophthora cinnamomi dieback Those caused by the genus Seiridium , such as Seiridium cardinale dieback or cypress canker disambig ... more details
Image Araucaria heterophylla 01.jpg thumb 220px Naturally occurring ramification helps gives these Pinophyta conifers a regular, cone geometry cone shaped outline. otheruses Ramification In botany , ramification is the divergence of the Plant stem stem and limbs of a plant into smaller ones, i.e. trunk botany trunk into branch es, branches into increasingly smaller branches, etc. Gardeners stimulate the process of ramification through pruning , thereby making tree s, shrub s and other plants bushier and denser. Short internodes the section of stem between nodes, i.e. areas where leaf leaves are produced help increase ramification in those plants that form branches at these nodes. Long internodes which may be the result of over watering, the over use of fertilizer , or a seasonal growth spurt decrease a gardener s ability to induce ramification in a plant. A high degree of ramification is essential for the creation of topiary as it enables the topiary artist to carve a bush or Hedge barrier hedge into a shape with an even surface. Ramification is also essential to practitioners of the Bonsai aesthetics art of bonsai as it helps recreate the form and habit of a full size tree in a small tree grown in a container. The pruning practices of coppicing and pollarding induce ramification by removing most of a tree s mass above the root. Fruit trees pruning Fruit tree pruning increases the yield of orchards by inducing ramification and thereby creating many vigorous, fruitful branches in the place of a few less fruitful ones. References http aob.oxfordjournals.org cgi content abstract 91 5 559 Annals of Botany 91 559 569, 2003 http www.lcbsbonsai.org Newsletter BasicBotany Part08 PlantHormones.htm Plant Hormones http www.lcbsbonsai.org Newsletter BasicBotany Part09 HormonesLight&Flowering.htm Hormones, Light and Flowering http www.web books.com Classics Nonfiction General DaVinci DaVinciC9P1.htm Leonardo DaVinci s Botany for painters botany stub Category Plant physiology Cat ... more details
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