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  2. Picea abies - Wikipedia

    en.wikipedia.org/wiki/Picea_abies

    Norway spruce is a large, fast-growing evergreen coniferous tree growing 35–55 m (115–180 ft) tall and with a trunk diameter of 1 to 1.5 m. It can grow fast when young, up to 1 m per year for the first 25 years under good conditions, but becomes slower once over 20 m (65 ft) tall. [6] The shoots are orange-brown and glabrous.

  3. Silviculture - Wikipedia

    en.wikipedia.org/wiki/Silviculture

    Information on the establishment, survival and growth of seedlings influenced by the cover of shelter trees, as well as on the growth of these trees, is needed as a basis for modelling the economic return of practising a shelterwood system. [144] The method's objective is to establish new forest reproduction under the shelter of the retained trees.

  4. Spruce - Wikipedia

    en.wikipedia.org/wiki/Spruce

    Spruce is the standard material used in soundboards for many musical instruments, including guitars, mandolins, cellos, violins, and the soundboard at the heart of a piano and the harp. Wood used for this purpose is referred to as tonewood. Spruce, along with cedar, is often used for the soundboard/top of an acoustic guitar. The main types of ...

  5. Old Tjikko - Wikipedia

    en.wikipedia.org/wiki/Old_Tjikko

    Old Tjikko [a] is an approximately 9,567-year old Norway spruce, located in the Dalarna province in Sweden. Old Tjikko originally gained fame as the "world's oldest tree". [1] Old Tjikko is, however, a clonal tree that has regenerated new trunks, branches and roots over millennia rather than an individual tree of great age.

  6. Christmas tree cultivation - Wikipedia

    en.wikipedia.org/wiki/Christmas_tree_cultivation

    Christmas tree cultivation is an agricultural, forestry, and horticultural occupation which involves growing pine, spruce, and fir trees specifically for use as Christmas trees. The first Christmas tree farm was established in 1901, but most consumers continued to obtain their trees from forests until the 1930s and 1940s.

  7. Picea obovata - Wikipedia

    en.wikipedia.org/wiki/Picea_obovata

    Picea obovata, the Siberian spruce, is a spruce native to Siberia, from the Ural Mountains east to Magadan Oblast, and from the Arctic tree line south to the Altay Mountains in northwestern Mongolia. It is a medium-sized evergreen tree growing to 15–35 m tall, and with a trunk diameter of up to 1.5 m, and a conical crown with drooping ...

  8. Picea rubens - Wikipedia

    en.wikipedia.org/wiki/Picea_rubens

    Foliage and cones. Red spruce is a perennial, [8] shade-tolerant, late successional [9] coniferous tree that under optimal conditions grows to 18–40 m (59–131 ft) tall with a trunk diameter of about 60 cm (24 in), though exceptional specimens can reach 46 m (151 ft) tall and 100 cm (39 inches) in diameter.

  9. Propagation of Christmas trees - Wikipedia

    en.wikipedia.org/wiki/Propagation_of_Christmas_Trees

    The Propagation of Christmas trees is the series of procedures carried out to grow new Christmas trees. Many different species of evergreen trees are used for Christmas trees. The most common of these species are classified in the four genera: pines, spruces, firs, and cypress. Christmas trees can be grown from seed or from root cuttings.