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Quercus Cerris
Quercus cerris Quercus cerris in Europe: distribution, habitat, usage and threats D. de Rigo, C. M. Enescu, T. Houston Durrant, G. Caudullo Turkey oak (Quercus cerris L.) is a deciduous tree native to southern Europe and Asia Minor, and a dominant species in the mixed forests of the Mediterranean basin. Turkey oak is a representative of section Cerris, a particular section within the genus Quercus which includes species for which the maturation of acorns occurs in the second year. Quercus cerris L., commonly known as Turkey oak, is a large fast-growing deciduous tree species growing to 40 m tall with 1 Frequency a trunk up to 1.5-2 m diameter , with a well-developed root < 25% system2. It can live for around 120-150 years3. The bark is 25% - 50% 50% - 75% mauve-grey and deeply furrowed with reddish-brown or orange > 75% bark fissures4, 5. Compared with other common oak species, e.g. Chorology Native sessile oak (Quercus petraea) and pedunculate oak (Quercus Introduced robur), the wood is inferior, and only useful for rough work such as shuttering or fuelwood1. The leaves are dark green above and grey-felted underneath6; they are variable in size and shape but are normally 9-12 cm long and 3-5 cm wide, with 7-9 pairs of triangular lobes6. The leaves turn yellow to gold in late autumn and drop off or persist in the crown until the next spring, especially on young trees3. The twigs are long and pubescent, grey or olive-green, with lenticels. The buds, which are concentrated Large shade tree in agricultural area near Altamura (Bari, South Italy). -
Chestnut Growers' Guide to Site Selection and Environmental Stress
This idyllic orchard has benefited from good soil and irrigation. Photo by Tom Saielli Chestnut Growers’ Guide to Site Selection and Environmental Stress By Elsa Youngsteadt American chestnuts are tough, efficient trees that can reward their growers with several feet of growth per year. They’ll survive and even thrive under a range of conditions, but there are a few deal breakers that guarantee sickly, slow-growing trees. This guide, intended for backyard and small-orchard growers, will help you avoid these fatal mistakes and choose planting sites that will support strong, healthy trees. You’ll know you’ve done well when your chestnuts are still thriving a few years after planting. By then, they’ll be strong enough to withstand many stresses, from drought to a caterpillar outbreak, with much less human help. Soil Soil type is the absolute, number-one consideration when deciding where—or whether—to plant American chestnuts. These trees demand well-drained, acidic soil with a sandy to loamy texture. Permanently wet, basic, or clay soils are out of the question. So spend some time getting to know your dirt before launching a chestnut project. Dig it up, roll it between your fingers, and send in a sample for a soil test. Free tests are available through most state extension programs, and anyone can send a sample to the Penn State Agricultural Analytical Services Lab (which TACF uses) for a small fee. More information can be found at http://agsci.psu.edu/aasl/soil-testing. There are several key factors to look for. The two-foot-long taproot on this four- Acidity year-old root system could not have The ideal pH for American chestnut is 5.5, with an acceptable range developed in shallow soils, suggesting from about 4.5 to 6.5. -
Sample Planting Grids All Chestnuts in the Planting Must Have Permanent Embossed Numerical Tags for That Planting and Will Be Monitored by That Tag
Sample planting grids All chestnuts in the planting must have permanent embossed numerical tags for that planting and will be monitored by that tag. The basic module is 6 x 6 ft spacing with a minimum of 20 ft borders. Such plantings allow easy fencing and mowing. Rows and columns need not be continuous nor do they need to be the same length. Mapping should show gaps. Create a simple schematic map of the planting once done. These configurations can be modified in a wide variety of ways but if lengthened in either direction, a depth of a least 3 rows in any dimension should be maintained. Remember that the pines are an early succession planting designed to create early site coverage and encourage upward growth in hardwoods. Their removal will be a first step in thinning. Different configurations will impose other thinning regimens over time: for example, red oaks might be removed in #1 over time if there is high chestnut survival and vigorous growth. These plantings are designed to introduce at least 30 chestnuts on the site. These should represent at least 2‐3 chestnut families, and may include Kentucky stump sprout families. #1. Alternate row planting 024 ft 30 ft 36 ft 42 ft 48 ft 54 ft 60 ft 66 ft 72 ft 78 ft 98 ft Dimensions 24 ft Pine Chestnut Pine Red Oak Pine Chestnut Pine Red Oak Pine Red Oak 110 x 98 ft 10780 sq ft 30 ft Pine Red Oak Pine Chestnut Pine Red Oak Pine Chestnut Pine Chestnut 36 ft Pine Chestnut Pine Red Oak Pine Chestnut Pine Red Oak Pine Red Oak Acreage 42 ft Pine Red Oak Pine Chestnut Pine Red Oak Pine Chestnut -
Oaks (Quercus Spp.): a Brief History
Publication WSFNR-20-25A April 2020 Oaks (Quercus spp.): A Brief History Dr. Kim D. Coder, Professor of Tree Biology & Health Care / University Hill Fellow University of Georgia Warnell School of Forestry & Natural Resources Quercus (oak) is the largest tree genus in temperate and sub-tropical areas of the Northern Hemisphere with an extensive distribution. (Denk et.al. 2010) Oaks are the most dominant trees of North America both in species number and biomass. (Hipp et.al. 2018) The three North America oak groups (white, red / black, and golden-cup) represent roughly 60% (~255) of the ~435 species within the Quercus genus worldwide. (Hipp et.al. 2018; McVay et.al. 2017a) Oak group development over time helped determine current species, and can suggest relationships which foster hybridization. The red / black and white oaks developed during a warm phase in global climate at high latitudes in what today is the boreal forest zone. From this northern location, both oak groups spread together southward across the continent splitting into a large eastern United States pathway, and much smaller western and far western paths. Both species groups spread into the eastern United States, then southward, and continued into Mexico and Central America as far as Columbia. (Hipp et.al. 2018) Today, Mexico is considered the world center of oak diversity. (Hipp et.al. 2018) Figure 1 shows genus, sub-genus and sections of Quercus (oak). History of Oak Species Groups Oaks developed under much different climates and environments than today. By examining how oaks developed and diversified into small, closely related groups, the native set of Georgia oak species can be better appreciated and understood in how they are related, share gene sets, or hybridize. -
Chestnut Oak Botanical/Latin Name Quercus Montana
Chestnut Oak Botanical/Latin name Quercus Montana Chestnut Oak owes its name to its leaves, 4”-6” long, looking like those of the American Chestnut. It is a species of oak in the white oak group native to eastern U.S. Predominantly a ridge-top tree in hardwood forests. Also called Mountain Oak or Rock Oak because it grows in dry rocky habitats, sometimes even around large rocks. As a consequence of its dry habitat and harsh ridge-top exposure, it is not usually large, 59’–72’ tall; specimens growing in better conditions however can become large, up to 141’. It is a long-lived tree, with high-quality timber when well-formed. The heavy, durable, close-grained wood is used for fence posts, fuel, railroad ties and tannin. Saplings are easier to transplant than many other oaks because the taproot of the seedling disintegrates as the tree grows, and the remaining roots form a dense mat about three feet deep. It is monoecious, having pollen-bearing catkins in mid-spring that fertilize the inconspicuous female flowers on the same tree. It reproduces from seed as well as stump sprouts. The 1”-1-1/2” long acorns mature in one growing season, are among the largest of native American oaks and are a valuable wildlife food. Acorns are produced when a tree grown from seed is about 20 years of age, but sprouts from cut stumps can produce acorns in as little as three years after cutting. Extensive confusion between the chestnut oak (Q. montana) and the swamp chestnut oak (Quercus michauxii) has historically occurred. -
Impact of Structural Defects on the Surface Quality of Hardwood Species Sliced Veneers
applied sciences Article Impact of Structural Defects on the Surface Quality of Hardwood Species Sliced Veneers Vasiliki Kamperidou 1,* , Efstratios Aidinidis 2 and Ioannis Barboutis 1 1 Department of Harvesting and Technology of Forest Products, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece; [email protected] 2 Department of Forestry and Natural Environment Management, Agricultural University of Athens, 118 55 Athens, Greece; [email protected] * Correspondence: [email protected]; Tel.: +30-2310998895 Received: 20 August 2020; Accepted: 7 September 2020; Published: 9 September 2020 Abstract: The surface roughness constitutes one of the most critical properties of wood and wood veneers for their extended utilization, affecting the bonding ability of the veneers with one another in the manufacturing of wood composites, the finishing, coating and preservation processes, and the appearance and texture of the material surface. In this research work, logs of five significant European hardwood species (oak, chestnut, ash, poplar, cherry) of Balkan origin were sliced into decorative veneers. Their surface roughness was examined by applying a stylus tracing method, on typical wood structure areas of each wood species, as well as around the areas of wood defects (knots, decay, annual rings irregularities, etc.), to compare them and assess the impact of the defects on the surface quality of veneers. The chestnut veneers presented the smoothest surfaces, while ash veneers, despite the higher density, recorded the highest roughness. In most of the cases, the roughness was found to be significantly lower around the defects, compared to the typical structure surfaces, probably due to lower porosity, higher density and the presence of tensile wood. -
American Chestnut Restoration in Eastern Hemlock-Dominated Forests of Southeast
American Chestnut Restoration in Eastern Hemlock-Dominated Forests of Southeast Ohio A thesis presented to the faculty of the College of Arts and Sciences of Ohio University In partial fulfillment of the requirements for the degree Master of Science Nathan A. Daniel June 2012 © 2012 Nathan A. Daniel. All Rights Reserved. 2 This thesis titled American Chestnut Restoration in Eastern Hemlock-Dominated Forests of Southeast Ohio by NATHAN A. DANIEL has been approved for the Program of Environmental Studies and the College of Arts and Sciences by James M. Dyer Professor of Geography Brian C. McCarthy Professor of Environmental and Plant Biology Howard Dewald Interim Dean, College of Arts and Sciences 3 ABSTRACT DANIEL NATHAN A., M.S., June 2012, Environmental Studies American Chestnut Restoration in Eastern Hemlock-Dominated Forests of Southeast Ohio (51 pp.) Directors of Thesis: James M. Dyer and Brian C. McCarthy Restoration of American chestnut (Castanea dentata (Marsh.) Borkh.) is currently underway in eastern North American forests. American chestnut and eastern hemlock (Tsuga canadensis (L.) Carr.) trees historically co-occurred in these forests. Today, hemlock-dominated forests are in decline due to hemlock wooly adelgid (Adelges tsugae Annand) infestation, and as such, may serve as appropriate habitat for chestnut reestablishment. To investigate this notion, I evaluated the performance of American chestnut seedlings planted under healthy eastern hemlock-dominated canopies. Two process-oriented greenhouse experiments were also performed to study the response of American chestnut to drought stress and to test the competitive performance of chestnut against red maple (Acer rubrum (L.)), the most abundant hardwood found in the understory of regional hemlock-dominated forests. -
Chestnut Oak Forest/Woodland
Classification of the Natural Communities of Massachusetts Terrestrial Communities Descriptions Chestnut Oak Forest/Woodland Community Code: CT1A3A0000 State Rank: S4 Concept: Oak forest of dry ridgetops and upper slopes, dominated by chestnut oak with an often dense understory of scrub oak, heaths, or mountain laurel. Environmental Setting: Chestnut Oak Forests/Woodlands occur as long narrow bands along dry ridges and upper slopes with thin soil over acidic bedrock. They may extend down steep, convex, rocky, often west- or south-facing slopes where soil is shallow and dry. The canopy is closed to partially open (>25% cover). There tends to be deep oak leaf litter with slow decomposition. Often many trees have multiple fire scars and charred bases; fire appears to play a role in maintaining the community occurrences. Chestnut Oak Forests/Woodlands often occur in a mosaic with closed oak or pine - oak forests down slope and more open communities above. Vegetation Description: The canopy of Chestnut Oak Forests/Woodlands is dominated, often completely, by chestnut oak (Quercus montana). Less abundant associates include other oaks (black (Q. velutina), red (Q. rubra), and/or white (Q. alba), and less commonly, scarlet (Q. coccinea)), with red maple (Acer rubrum), and white or pitch pines (Pinus strobus, P. rigida). The subcanopy layer is sparse and consists of canopy species, black birch (Betula lenta), and sassafras (Sassafras albidum). Tall shrubs are lacking or the shrub layer may have scattered tree saplings, mountain laurel (Kalmia latifolia), striped maple (Acer pensylvanicum), American chestnut (Castanea dentata), and witch hazel (Hamamelis virginiana). Short shrubs are dense in patches dominated by black huckleberry (Gaylussacia baccata) and lowbush blueberries (Vaccinium angustifolium and V. -
Phytosanitary Measures for Wood Commodities
PHYTOSANITARY MEASURES FOR WOOD COMMODITIES Dr. Andrei Orlinski, EPPO Secretariat Joint UNECE // FAO and WTO Workshop Emerging Trade Measures in Timber Markets Geneva, 2010-03-23 What is EPPO? • Intergovernmental organization • Headquarters in Paris • 50 member countries • 2 Working Parties • More than 20 panels of experts • EPPO website: www.eppo.org EPPO Region Why phytosanitary measures are necessary? • The impact of pests on forests is very important. According to FAO data, at least 35 million hectares of forests worldwide are damaged annually by insect pests only. • The highest risk is caused by introduction and spread of regulated pests with commodities Why phytosanitary measures are necessary? • Some examples of economic and environmental damage: - PWN: in Portugal, almost 24 mln euros spent during 2001 – 2009, in Spain, 344000 euros spent in 2009 and almost 3 mln euros will be spent in 2010, in Japan 10 mln euros are spent annually. - EAB: 16 species of ash could disappear from NA - ALB and CLB: Millions of trees recently killed in NA - DED: almost all elm trees disappeared in Europe Emerald ash borer in Moscow Native range of Fraxinus excelsior R U S S I A in Europe Moscow Asian longhorned beetle Ambrosia beetles Pine wood Nematode Pine wood nematode in Japan Basic principles 1. SOVEREIGNTY 9. COOPERATION 2. NECESSITY 10. EQUIVALENCY 3. MANAGED RISK 11. MODIFICATION 4. MINIMAL IMPACT 5. TRANSPARENCY 6. HARMONIZATION 7. NON DISCRIMINATION 8. TECHNICAL JUSTIFICATION Wood commodities • Non-squared wood • Squared wood • Particle -
Section [I]Cerris[I] in Western Eurasia: Inferences from Plastid
A peer-reviewed version of this preprint was published in PeerJ on 17 October 2018. View the peer-reviewed version (peerj.com/articles/5793), which is the preferred citable publication unless you specifically need to cite this preprint. Simeone MC, Cardoni S, Piredda R, Imperatori F, Avishai M, Grimm GW, Denk T. 2018. Comparative systematics and phylogeography of Quercus Section Cerris in western Eurasia: inferences from plastid and nuclear DNA variation. PeerJ 6:e5793 https://doi.org/10.7717/peerj.5793 Comparative systematics and phylogeography of Quercus Section Cerris in western Eurasia: inferences from plastid and nuclear DNA variation Marco Cosimo Simeone Corresp., 1 , Simone Cardoni 1 , Roberta Piredda 2 , Francesca Imperatori 1 , Michael Avishai 3 , Guido W Grimm 4 , Thomas Denk 5 1 Department of Agricultural and Forestry Science (DAFNE), Università degli Studi della Tuscia, Viterbo, Italy 2 Stazione Zoologica Anton Dohrn, Napoli, Italy 3 Jerusalem Botanical Gardens, Hebrew University of Jerusalem, Jerusalem, Israel 4 Orleans, France 5 Department of Palaeobiology, Swedish Museum of Natural History, Stockholm, Sweden Corresponding Author: Marco Cosimo Simeone Email address: [email protected] Oaks (Quercus) comprise more than 400 species worldwide and centres of diversity for most sections lie in the Americas and East/Southeast Asia. The only exception is the Eurasian Sect. Cerris that comprises 15 species, a dozen of which are confined to western Eurasia. This section has not been comprehensively studied using molecular tools. Here, we assess species diversity and reconstruct a first comprehensive taxonomic scheme of western Eurasian members of Sect. Cerris using plastid (trnH-psbA) and nuclear (5S-IGS) DNA variation with a dense intra-specific and geographic sampling. -
Evaluation of the Feeding Value of Leaves of Woody Plants for Feeding
Evaluation of the feeding value of leaves of woody plants for feeding ruminants in summer Jean Claude Emile, Remy Delagarde, Philippe Barre, Vincent Niderkorn, Sandra Novak To cite this version: Jean Claude Emile, Remy Delagarde, Philippe Barre, Vincent Niderkorn, Sandra Novak. Evaluation of the feeding value of leaves of woody plants for feeding ruminants in summer. 19. Symposium of the European Grassland Federation (EGF), May 2017, Alghero, Italy. hal-01608208 HAL Id: hal-01608208 https://hal.archives-ouvertes.fr/hal-01608208 Submitted on 2 Jun 2020 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Distributed under a Creative Commons Attribution - ShareAlike| 4.0 International License Evaluation of the feeding value of leaves of woody plants for feeding ruminants in summer Emile J.C.1, Delagarde R.2, Barre P.3, Niderkorn V.4 and Novak S.1 1INRA, UE 1373 Ferlus, 86600 Lusignan, France; 2Pegase UMR 1348 INRA-Agrocampus Ouest, 35590 Saint-Gilles, France; 3INRA, UR 4 URP3F, 86600 Lusignan, France; 4INRA, UMR 1213 Herbivores, Vetagro Sup, 63122, Saint-Genès-Champanelle, France Abstract The nutritive value of a set of 10 woody forage resources (Italian alder, ash, chestnut, field elm, hazel, lime, black locust, white mulberry, holm oak and vine) was investigated. -
Quercus Cerris Turkey
Technical guidelines for genetic conservation and use Turkey oak Quercus cerris Quercus cerris Quercus cerris Q Marco Cosimo Simeone1, Peter Zhelev Stojanov2 and Gaye Kandemir3 1 University of Tuscia, Viterbo, Italy 2 University of Forestry, Sofia, Bulgaria 3 Forest Tree Seeds and Tree Breeding Research Institute Directorate, Ankara, Turkey These Technical Guidelines are intended to assist those who cherish the valuable Turkey oak gene pool and its inheritance, through conserving valuable seed sources or use in practical forestry. The focus is on conserving the genetic diversity of the species at the European scale. The recommendations provided in this module should be regarded as a commonly agreed basis to be complemented and further developed in local, national or regional conditions. The Guidelines are based on the available knowledge of the species and on widely accepted methods for the conservation of forest genetic resources. Biology and ecology Turkey oak (Quercus cer- ris L.) is native to Europe and Asia Minor and exhibits strong morphological variability and ecological adaptability. It has deciduous leaves and ovoid acorns with big curly cups, which ripen in the second year (Sep- tember–October). It may reach 30–35 m in height, with a straight trunk up to 2 m in diameter and 5–5.5 m in circumference. The crown is oval, broad and open. The bark is thick, rough and deeply furrowed into irregular horizontal and vertical ridges. The inner part is characteristically red. Leaves are yellow-green, with 6–12 triangular narrow lobes and deep incisions on each side. The regularity of the lobbing varies greatly, with some trees having very regular, moderately to deeply incised lobes TurkeyQuercus oakQuercus cerrisTurkey oakQuercus cerris Turkeycerris oakQuercus cerrisTurkey QuercusoakQuercus cerrisTurkey oakQuercus cerrisTurkey cerris oakQuercus cerrisTurkey oak QuercusQuercus cerrisTurkey oakQuercus cerrisTurkey oakcerrisQuercus cerrisTurkey oakQuercus Quer cerrisTurkey oakQuercus cerri (var.