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A [[Science]] magazin 2006 szeptemberi számában jelentették be, hogy a [[szőrös termésű nyár]] ''(Populus trichocarpa)'' az első olyan fa, amelynek a teljes [[DNS (biológia)|DNS]]-szekvenciáját felderítették.<ref>Joint Genome Institute: [http://genome.jgi-psf.org/Poptr1_1/Poptr1_1.home.html ''Populus trichocarpa'']</ref>
== Kultiváció és használathasznála ==
József attila Megtalálta Kemenczei Holttestét. És bedobta a tűzbe.
[[Fájl:Populus nigra-bekes.jpg|thumb|right|[[Jegenyenyár]] (a nyárfa kultúrnövény-változata) Magyarországon]]
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Many poplars are grown as [[ornamental tree]]s, with numerous [[cultivar]]s selected. They have the advantage of growing very big very fast. Trees with fastigiate (erect, columnar) branching are particularly popular, and very widely grown across Europe and southwest Asia in particular. However, like willows, poplars have very vigorous and invasive root systems stretching up to 40 m from the trees; planting close to houses or ceramic water pipes may result in damaged foundations and cracked walls and pipes due to their search for moisture.
Fast-growing [[Hybrid (biology)|hybrid]] poplars are grown on [[plantation]]s in many areas for [[pulpwood]] and used for the manufacture of [[paper]].<ref>{{Cite web |url=http://www.peupliersdefrance.org/indexGB.htm/ |title=Poplar cultivation in Europe |accessdate=2008-04-21 |archiveurl=https://web.archive.org/web/20071103142348/http://www.peupliersdefrance.org/indexGB.htm |archivedate=2007-11-03 }}</ref> The wood is generally white, often with a slightly yellowish cast. It is also sold as inexpensive hardwood [[timber]], used for [[pallet]]s and cheap [[plywood]]; more specialised uses include [[match]]es and the boxes in which [[Camembert (cheese)|camembert cheese]] is sold. Poplar wood is widely used in the [[snowboard]] industry for the snowboard "core", because it has exceptional flexibility.
Poplar was the most common wood used in [[Italy]] for [[panel painting]]s; the [[Mona Lisa]] and indeed most famous early renaissance Italian paintings are on poplar.
Due to its [[tannic acid]] content, the bark has been used in Europe for tanning leather.<ref name=Keeler/>
There has been some interest in using poplar as an [[energy crop]] for [[biofuel]], particularly in light of its high energy in – energy out ratio, large carbon mitigation potential and fast growth.
Poplar wood also, particularly when seasoned, makes a good hearth for a [[bow drill]]. It was picked as the material for the bones of "Buster", the crash test dummy used in the TV show [[MythBusters]], after some experiments revealed that it fractures under approximately the same loads as human bone. Poplar is sometimes used in the bodies of [[electric guitar]]s and [[drum]]s.
A folk tradition noted among [[Michigan]] miners in the early 20th century asserted that poplar wood was used to make the cross upon which [[Jesus Christ]] was crucified.<ref> {{cite journal
| title =Why the Poplar Stirs. Superstition of Miners in Michigan (in Notes and Queries)
| journal =The Journal of American Folklore
| volume =13
| issue =50
| pages =226
| date =[[1900]]
| url =http://links.jstor.org/sici?sici=0021-8715%28190007%2F09%2913%3A50%3C226%3AWTPSSO%3E2.0.CO%3B2-5
| format = PDF
| accessdate = 2008-01-31}} </ref>
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== A nyárfa a művészetben ==
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