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Добірка наукової літератури з теми "Commercial tree species"

Автор: Grafiati

Опубліковано: 3 червня 2025

Оновлено: 31 липня 2025

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Статті в журналах з теми "Commercial tree species"

TAG, PROF. HUI. "Foliar fungal pathogens of the tree species." Journal of Bioresources 12, no. 2 (2024): 26–30. https://doi.org/10.5281/zenodo.14891682.

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Tree species are predominantly found throughout our surrounding environment. They hold significant economic and ecological importance for us. However, it is noticeable that most research focuses on commercial crops, aiming to enhance their production by mitigating the adverse effects of pathogens. In contrast, naturally growing trees receive less attention than commercially cultivated crops. Similar to crops, trees also face adverse conditions due to surrounding pathogens. As a result, they compromise their healthy growth and survivability rates. In the present study, we encountered several in

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Westfall, James A., and Charles T. Scott. "Taper Models for Commercial Tree Species in the Northeastern United States." Forest Science 56, no. 6 (2010): 515–28. http://dx.doi.org/10.1093/forestscience/56.6.515.

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Abstract A new taper model was developed based on the switching taper model of Valentine and Gregoire; the most substantial changes were reformulation to incorporate estimated join points and modification of a switching function. Random-effects parameters were included that account for within-tree correlations and allow for customized calibration to each individual tree. The new model was applied to 19 species groups from data collected on 2,448 trees across the northeastern United States. A comparison of fit statistics showed considerable improvement for the new model. The residuals occurred

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Krisnawat, Haruni, and Djoko Wahjono. "EFFECT OF POST-LOGGING SILVICULTURAL TREATMENT ON GROWTH RATES OF RESIDUAL STAND IN A TROPICAL FOREST." JOURNAL OF FORESTRY RESEARCH 7, no. 2 (2010): 112–24. https://doi.org/10.20886/ijfr.2010.7.2.112-124.

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Post-logging silvicultural treatments are generally performed to improve yields of the remaining tree species by increasing their growth rate. In this study the effects of silvicultural treatment on the growth rates of commercial (dipterocarps and non-dipterocarps) as well as non- commercial tree species in a tropical forest in West Kalimantan were examined and were compared to a control treatment. Silvicultural treatment applied was liberation of future crop trees from lianas and neighbouring competing trees. Treatments were applied to six plots of 80 m x 80 m each. The plots comprised 64 qua

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Okumu, Joyce AKinyi, David Kipkirui Langat, and Samson Okoth Ojung'a. "Determinants of Commercial Tree Growing Among Smallholder Farmers in Nandi County, Kenya." East African Journal of Forestry and Agroforestry 5, no. 1 (2022): 269–85. http://dx.doi.org/10.37284/eajfa.5.1.939.

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Commercial Forestry sector contributes more than $600 billion to the global economy each year. Farm forestry is expected to contribute immensely to meeting materials needs for this sector and also provide ecosystem services. To support the tree growing by farmers, it is essential to understand the factors that influence commercial tree growing. The findings of a study to assess the current state of on-farm tree planting and the key variables influencing adoption of commercial tree growing on farms are reported in this paper. Cross sectional data on commercial tree growing was collected from tw

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Lewis, Jeffrey C. "Creating Snags and Wildlife Trees in Commercial Forest Landscapes." Western Journal of Applied Forestry 13, no. 3 (1998): 97–101. http://dx.doi.org/10.1093/wjaf/13.3.97.

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Abstract Conversion of original older forests to second-growth stands has resulted in the loss of snag and wildlife tree habitat in the Pacific Northwest. Because many species require these habitat features, habitat managers have attempted to create snags and wildlife trees. From written contracts and contractor interviews, I summarized information about currently used snag and wildlife tree creation techniques including operation specifications, cost-effectiveness, safety considerations, and numbers of trees created. Removing the top of a tree with a chainsaw (~$35 per tree) or explosives (~$

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SHI, JIANGTAO, JUNYI PENG, CHONGYANG XIA, and JIAN LI. "A COMPARISON OF METABOLITES IN WOOD-FORMING TISSUES FROM EIGHT COMMERCIAL TIMBER TREE SPECIES OF HEILONGJIANG PROVINCE IN CHINA." WOOD RESEARCH 66(5) 2021 66, no. 5 (2021): 746–61. http://dx.doi.org/10.37763/wr.1336-4561/66.5.746761.

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Four coniferous and four deciduous commercial tree species from Northeastern ofChina were selected to investigate the differences ofmetabolites in wood-forming tissues bygas chromatography-mass spectrometry. The results showed that the identified metabolites mainly consisted of neutral sugars, lipids, and organic acids. The mean contents of both arabinofuranose and 1-cyclohexene-1-carboxylic acid were higher in coniferous trees thanin deciduous ones. Similarly, the D-fructose and D-glucose content was significantly higherin coniferous trees than deciduous trees, but the total contents of these

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Santos, Misael Freitas dos, Afonso Figueiredo Filho, Allan Libanio Pelissari, Rodrigo Geroni Mendes Nascimento, and Daniele Lima da Costa. "Can tree hollow diameter be predicted? A study of native commercial trees in the eastern brazilian Amazon." DELOS Desarrollo Local Sostenible 17, no. 59 (2024): e1928. http://dx.doi.org/10.55905/rdelosv17.n59-013.

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The objective of this research was to test selected and validated generic and species-specific equations to estimate three different hollow diameter measurements in native commercial trees from a managed forest in the state of Pará, Brazil. A sample of 4,912 hollow trees, involving 29 species, was used to model the mean hollow diameter at tree level, and another composed of 3,867 hollow trees, belonging to 28 species, was used to model the mean hollow diameter of the first log of the commercial stem and the hollow diameter at the base of the tree. 30% of the two samples were previously randoml

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Sharma, Mahadev. "Total and Merchantable Volume Equations for 25 Commercial Tree Species Grown in Canada and the Northeastern United States." Forests 12, no. 9 (2021): 1270. http://dx.doi.org/10.3390/f12091270.

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Accurate estimates of tree bole volume are fundamental to sustainable forest management. Total inside and outside bark and merchantable volume equations were developed for 25 major commercial tree species grown in natural stands in eastern and central Canada and the northeastern United States. Data used to develop these equations was collected from 9647 trees sampled from natural stands across the study area. The number of trees sampled varied among species. Jack pine (Pinus banksiana Lamb.) had the most observations (1648 trees) and American basswood (Tilia americana) and red oak (Quercus rub

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Lewis, Jeffrey C. "Creating Snags and Wildlife Trees in Commercial Forest Landscapes." Western Journal of Applied Forestry 13, no. 3 (1998): 97–101. https://doi.org/10.5281/zenodo.14818094.

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(Uploaded by Plazi for the Bat Literature Project) Abstract Conversion of original older forests to second-growth stands has resulted in the loss of snag and wildlife tree habitat in the Pacific Northwest. Because many species require these habitat features, habitat managers have attempted to create snags and wildlife trees. From written contracts and contractor interviews, I summarized information about currently used snag and wildlife tree creation techniques including operation specifications, cost-effectiveness, safety considerations, and numbers of trees created. Removing the top of a tre

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Pandey, Tirtha Raj. "Tree Diversity in Nepal: An updated list." Journal of Plant Resources 22, no. 1 (2024): 43–63. http://dx.doi.org/10.3126/bdpr.v22i1.68293.

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Trees are one of the dominant life forms in plant world. They have important ecological and commercial roles in society. Nepal is also rich in terms of tree species diversity; however, a comprehensive country-wide inventory is still in need. This paper aims to document the occurrence of native and naturalized tree species of the country with updated information on their identification and nomenclatural issues. Extensive database searches including the ‘Global Tree Search’ and consultation of many publications has revealed the occurrence of 700 taxa of trees belonging to 90 families, 300 genera

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Дисертації з теми "Commercial tree species"

Hart, Tim. "Stem profile equations for several commercially important timber species in Wisconsin /." Link to full text, 2009. http://epapers.uwsp.edu/thesis/2009/Hart.pdf.

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Thesis (M.S.)--University of Wisconsin--Stevens Point, 2009. Submitted in partial fulfillment of the requirements of the degree Master of Science in Natural Resources (Forestry), College of Natural Resources. Includes bibliographical references (leaves 82-87).

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Payn, Kitt. "Molecular genetic diversity and population genetic structure of the commercially important tropical forest tree species Eucalyptus urophylla." NCSU, 2008. http://www.lib.ncsu.edu/theses/available/etd-07162008-153216/.

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Eucalyptus urophylla is an important plantation species in countries with tropical and subtropical climates. Its natural distribution is limited to seven islands in eastern Indonesia. Larger populations are found on the islands of Timor and Wetar, whereas smaller populations occur on the islands of Alor, Pantar, Lomblen, Adonara and Flores. Of concern is the depletion in the speciesâ genetic resource as a consequence of land conversion to agriculture. Proficient management of the genetic resource, with respect to both conservation and breeding programs, requires an understanding of the level o

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Cavers, Stephen. "Population genetic structure and phylogeography of two commercially important neotropical tree species, Vochysia ferruginea Mart. & Cedrela odorata L." Thesis, University of Edinburgh, 2002. http://hdl.handle.net/1842/16954.

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This thesis aims to use molecular methods to investigate the genetic diversity and population structure of two commercially important neotropical tree species in a human-influenced Central American landscape. Red Yemeri, Vochysia ferruginea Mart., is recommended as a potentially highly useful species for forestry reclamation of degraded land. Populations from throughout its range in Costa Rica were analysed for both organellar (chloroplast specific PCR-RFLP) and total genomic (AFLP) variation. All populations were fixed for one of two chloroplast DNA (cpDNA) haplotypes identified. One h

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Hans, Ralston Ronald. "Initial growth responses to controlled release fertilizer application at establishment of commercial forestry species in South Africa." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/85609.

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Thesis (MScFor)--Stellenbosch University, 2013. ENGLISH ABSTRACT: In South Africa fertilizer applications at establishment is a common practice in the forestry industry. Recommendations are based on past research with conventional sources (CV) and as a result there have only been slight improvements in additional plantation production over recent years. The objective of this study was to investigate initial stand responses in terms of leaf are index (LAI), foliar nutrient content, biomass index (BI) and volume growth to the application of controlled release fertilizers (CRF) at re-establish

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Nzogang, André [Verfasser]. "Tropical forest dynamics after logging : natural regeneration and growth of commercial tree species ; in southeast Cameroon / by André Nzogang." 2009. http://d-nb.info/1000875075/34.

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Te-Lien, Kao, and 高德璉. "Responses of seedlings of three native broad-leaved tree species of Taiwan to different levels of a commercial fertilizer." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/88727504449028901683.

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碩士 國立臺灣大學 森林學研究所 91 Abstract 6 different N concentration levels (C (control) ；F1 (100kg/ha N)； F2 (200kg/ha N) , F3 (300kg/ha N)；F4 (400kg/ha N) and F5 (500kg/ha N).) and 3 native broadleaf tree seedlings (Quercus glauca, Neolitsea aciculata var. variabilima and Fraxinus griffithii.) were used in these program , to realized the effects of seedlings growth under different nitrogen fertilizer concentration . The results reveal that the fertilizer will increased the seedlings height growth ,diameter expanding and change the R/T ratios , also the relative growth r

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Payn, Kitt Garnet. "Molecular genetic diversity and population genetic structure of the commercially important tropical forest tree species Eucalyptus urophylla." 2008. http://www.lib.ncsu.edu/theses/available/etd-07162008-153216/unrestricted/etd.pdf.

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YAO, MING-CAI, and 堯明才. "Studies on the variation of tissue structures of the commercial trees in Taiwan:the variation of tissue structures of three hardwood species." Thesis, 1990. http://ndltd.ncl.edu.tw/handle/25940350572579280931.

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"The assessment of DNA barcoding as an identification tool for traded and protected trees in southern Africa : Mozambican commercial timber species as a case study." Thesis, 2015. http://hdl.handle.net/10210/13174.

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M.Sc. (Botany) Global efforts to protect the world’s forests from unsustainable and inequitable exploitation have been undermined in recent years by rampant illegal logging in many timber-producing countries. A prerequisite for efficient control and seizure of illegally harvested forest product is a rapid, accurate and tamper proof method of species identification. DNA barcoding is one such a tool, relatively simple to apply. It is acknowledged to bring about accuracy and efficiency in species identification. In this study a DNA barcode reference library for traded and protected tree specie

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Mukala, Ronny Kabongo. "The assessment of DNA barcoding as an identification tool for traded and protected trees in southern Africa: Mozambican commercial timber species as a case study." Thesis, 2014. http://hdl.handle.net/10210/11375.

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Книги з теми "Commercial tree species"

Beaulieu, Jean. Genetic diversity in commercial tree species: White spruce. Canadian Forest Service, 2002.

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Beaulieu, Jean. Genetic diversity in commercial tree species: White spruce. Canadian Forest Service, 2002.

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W. R. Dempster and Associates. Baseline growth performance levels and assessment procedures for commercial tree species in Alberta's mountains and foothills. Alberta Land Conservation and Reclamation Council, Reclamation Research Technical Advisory Committee, 1988.

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Nzogang, André. Natural regeneration and growth of commercial tree species following logging of tropical rainforests in southeast Cameroon. Waldbau-Institut, Albert-Ludwigs-Universität Freiburg, 2010.

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Teketay, Demel, and Getachew Desalegn. Commercial timber species in Ethiopia: Characteristics and uses : a handbook for forest industries, construction and energy sectors, foresters and other stakeholders. Addis Ababa University Press, 2012.

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Kennard, Deborah. Regeneration of Commercial Tree Species Following Controlled Burns in a Tropical Dry Forest in Eastern Bolivia. Dissertation Discovery Company, 2018.

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Kennard, Deborah. Regeneration of Commercial Tree Species Following Controlled Burns in a Tropical Dry Forest in Eastern Bolivia. Dissertation Discovery Company, 2018.

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Field guide for recognition, identification and management of pests and diseases of commercial tree species in Uganda. FAO, 2021. http://dx.doi.org/10.4060/cb6351en.

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Richardson, Ken. Australia's Amazing Kangaroos. CSIRO Publishing, 2012. http://dx.doi.org/10.1071/9780643097407.

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This book provides an authoritative source of information on kangaroos and their relatives. Topics include: species characteristics and biology, adaptations and function, and conservation. The book also discusses culling and the commercial kangaroo harvest, as well as national attitudes to kangaroos and their value for tourism. There are 71 recognised species of kangaroo found in Australasia. Of these, 46 are endemic to Australia, 21 are endemic to the island of New Guinea, and four species are found in both regions. The various species have a number of common names, including bettong, k

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Nambiar, Sadanandan, and Ian Ferguson. New Forests. CSIRO Publishing, 2005. http://dx.doi.org/10.1071/9780643093089.

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There is no question that the timber industry needs to adopt sustainable practices that ensure a future for the industry. This book goes well beyond simply growing commercial tree plantations for wood production. It explores new forests that can supply environmental services such as salinity mitigation and carbon sequestration together with commercial wood production in an environment beyond the boundaries of traditional forestry. New Forests targets agricultural landscapes affected by salinity and which generally have rainfall less than 650 mm per year. The book addresses vital issues s

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Частини книг з теми "Commercial tree species"

Frisvold, George B. "Bioprospecting and Incentives for Biodiversity Conservation: Lessons from the History of Paclitaxel." In Sustainable Resource Development in the 21st Century. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-24823-8_14.

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AbstractPlants and other organisms remain an important source of new medicines, either directly or as sources of molecular building blocks or information for drug development. Bioprospecting contracts between pharmaceutical companies and species-rich source countries have been touted as a way for developing countries to capture greater gains from their genetic resources and to increase their incentives to preserve their biodiversity. This case study of the discovery and commercial development of the anticancer drug paclitaxel from the Pacific yew tree highlights neglected issues in debates ove

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Richardson, David M. "Commercial Forestry and Agroforestry as Sources of Invasive Alien Trees and Shrubs." In Invasive Species and Biodiversity Management. Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-011-4523-7_16.

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Morgan, Lynette. "Background and history of hydroponics and protected cultivation." In Hydroponics and protected cultivation: a practical guide. CABI, 2021. http://dx.doi.org/10.1079/9781789244830.0001.

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Abstract Along with new types of protected cropping structures, materials and technology, the range and diversity of hydroponic crops grown are also expanding. While the greenhouse mainstays of nursery plants, tomatoes, capsicum, cucumber, salad vegetables and herbs will continue to expand in volume, newer, speciality and niche market crops are growing in popularity. These include new cut flower species, potted plants and ornamental crops, and a growing trend in the commercial production of medicinal herbs using high-technology methods such as aeroponics. Exotic culinary herbs such as wasabi,

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Arun Kumar, A. N., Geeta Joshi, and S. Manikandan. "Variability for Heartwood Content in Three Commercially Important Tree Species of Peninsular India—Hardwickia binata, Pterocarpus santalinus and Santalum album." In Wood is Good. Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-3115-1_12.

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Wilkens, Barbara. "Commercio e movimenti di animali in Sardegna, Corsica e Sicilia nel corso del I millennio a.C." In Circulations animales et zoogéographie en Méditerranée. Publications de l’École française de Rome, 2024. https://doi.org/10.4000/12we4.

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Delle tre isole prese in esame, Sardegna, Corsica e Sicilia, le prime due presentano maggiori problemi riguardo alla colonizzazione da parte dell’uomo e degli altri animali in quanto più distanti e non visibili (o scarsamente visibili nel caso della Corsica) dalla terraferma. La Sicilia invece è separata dalla penisola italiana da uno stretto di mare limitato, facilmente superabile anche da piccole imbarcazioni ed eventualmente anche a nuoto. Dopo il popolamento neolitico di Corsica e Sardegna, le due isole sembrano subire una stasi, almeno per quanto riguarda l’introduzione di nuove specie an

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M. E. Mbinga, Joram, Stephen F. Omondi, and Alice A. Onyango. "Conifers: Species Diversity and Improvement Status in Kenya." In Conifers - Recent Advances [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.101111.

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A wide range of exotic conifer species have been successfully introduced in Kenya since 1910 for the purpose of supplying wood, mainly for timber, pulp, and plywood industries. Among the conifers introduced, Cupressus lusitanica and Pinus patula have adapted well to local growing conditions and are now the key species widely planted in commercial plantations. The other conifer species are planted at secondary level or as ornamentals. In order to increase productivity, the key conifer species have been subjected to genetic improvement through selection, breeding, and hybridization. Results of t

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Plathner, Frida Vermina, Johan Sjöström, and Anders Granström. "Influence of tree species on surface fuel structure in Swedish forests." In Advances in Forest Fire Research 2022. Imprensa da Universidade de Coimbra, 2022. http://dx.doi.org/10.14195/978-989-26-2298-9_176.

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The highly managed forests of Fennoscandia are dominated by coniferous (Scots pine and Norway spruce) stands with occasional inclusion of deciduous trees (Betula spp, Populus tremula, Quercus robur). Without active pre-commercial thinning, broadleaved deciduous trees would be more common and it is often assumed this would reduce flammability. Generally there is little information on surface fuel structure in Fennoscandia and its relation to the dominant tree species. We therefore evaluated fuel characteristics in a sample of Swedish mature, closed-canopy forest stands dominated by Pinus sylves

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Eadie, John, Paul Sherman, and Brad Semel. "Conspecific Brood Parasitism, Population Dynamics, and the Conservation of Cavity-Nesting Birds." In Behavioral Ecology and Conservation Biology. Oxford University PressNew York, NY, 1998. http://dx.doi.org/10.1093/oso/9780195104899.003.0012.

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Abstract A substantial number of bird species nest or roost in cavities (9-18% of all species in Europe, North America, southern Africa, and Australia). More than half of these are obligate cavity-nesters (Newton, 1994a,b). A central conservation problem facing many species is loss of breeding habitat. Considerable evidence, both observational and experimental, indicates that populations of hole-nesting birds frequently are limited by shortages of suitable nesting cavities (von Haartmann, 1957; Brush, 1983; Brawn and Baida, 1988; Bock et al., 1992; Newton, 1994a,b). Development, and the remova

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Alldredge, Mathew W., Jeff S. Hatfield, David D. Diamond, and C. Diane True. "Golden-Cheeked Warbler (Dendroica chrysoparia) in Texas Importance of Dispersal toward Persistence in a Metapopulation." In Species Conservation and Management. Oxford University PressNew York, NY, 2004. http://dx.doi.org/10.1093/oso/9780195166460.003.0033.

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Abstract The golden-cheeked warbler (Dendroica chrysoparia) is a neotropical migrant songbird whose breeding range is currently restricted to fewer than 35 counties in the Edwards Plateau region of central Texas (U.S. Fish and Wildlife Service 1996). Breeding habitat consists of Ashe juniper (Juniperus ashei) along with a variety of deciduous tree species (Wahl et al. 1990). Wintering range consists of high-elevation pine (Pinus) and oak (Quercus) woodlands located in Honduras, Guatemala, and Mexico (Pulich 1976, Vidal et al. 1994, Rappole et al. 2000). The golden-cheeked warbler was listed as

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Silva, Kátia Emídio da, Sebastião Venâncio Martins, and Thaís Carla Vieira Alves. "NEIGHBOUR`S IDENTITY OF COMMERCIAL TROPICAL TREE SPECIES IN A TROPICAL RAINFOREST NEAR MANAUS, BRAZIL." In Estudos Dendrológicos e Ecológicos na Amazônia: oportunidades e experiências. Editora Científica Digital, 2022. http://dx.doi.org/10.37885/220207926.

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Тези доповідей конференцій з теми "Commercial tree species"

Grinfelds, Uldis, Liene Zeberga, Kristaps Ozolins, Raitis Rieksts � Riekstins, and Linda Robalte. "EFFECTIVE PROTECTION AGAINST PINE WEEVIL (HYLOBIUS ABIETIS) DAMAGES IN CONIFEROUS PLANTATIONS." In 24th SGEM International Multidisciplinary Scientific GeoConference 2024. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024v/3.2/s13.34.

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Climate change manifest itself as increased natural disturbances. These effects can be reduced by planting adapted forest reproductive material. Such plantation ensure the source of raw material for bioeconomy, but are affected by dendrophagous insects, including pine weevil (Hylobius abietis). This species is estimated to cause 120 million EUR financial losses annually. Untreated coniferous seedlings have very high mortality, therefore pesticides are applied in nurseries, before delivering the plants to forest. Use of pesticides is have a negative impact on the environment. Therefore several

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Bickovskis, Karlis, Valters Samariks, and Aris Jansons. "Effect of forest stand thinning on tree biomass carbon stock." In 23rd International Scientific Conference Engineering for Rural Development. Latvia University of Life Sciences and Technologies, Faculty of Engineering and Information Technologies, 2024. http://dx.doi.org/10.22616/erdev.2024.23.tf009.

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Forest store significant amount of carbon and carbon stock in living tree biomass is amongst the largest carbon pools in forest ecosystems. Forest management practises, such as thinning, can improve tree growth, and increase carbon sequestration in forest ecosystems, thus be beneficial for achieving climate change mitigation goals. However, information about additional carbon stock increase as a result of thinning in the first 10 years is lacking in hemiboreal region. Therefore, this study investigates the additional carbon stock of the most common tree species (Scots pine, Norway spruce, and

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Vliet, Kasey, Peter Von Buelow, and Steven Y. Mankouche. "Limb: Rethinking Heavy Timber Joinery Through Analysis of Tree Crotches." In 2018 ACSA International Conference. ACSA Press, 2018. http://dx.doi.org/10.35483/acsa.intl.2018.21.

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LIMB reconsiders historic heavy timber construction across cultures to develop new joinery methods by focusing on the natural occurrence of branch bifurcation in different wood species. Because of its low value, often the crotch of a tree is not harvested for commercial purposes. This project uses this vital element to design connections that replace traditional mortise and tenon or steel connections.

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Hussein Ayoub AL-JABISH, Bassam, Ibtisam N. AL-ASSAF, and Iman Radha JASIM. "SIMILARITY AND DISSIMILARITY OF PHENOTYPIC AND GENOTYPIC CHARACTERISTICS OF PRUNUS DEMOSTICA (L.) ROSACEAE IN NORTH OF IRAQ (NINAVAH)." In VI.International Scientific Congress of Pure,Applied and Technological Sciences. Rimar Academy, 2022. http://dx.doi.org/10.47832/minarcongress6-20.

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Prunus domestica is recognized as a species of fruit tree grown all over the world. It is used locally for various commercial purposes. In this research, we determined of the morphological and genetic diversity present for 5 samples of P. domestica cultivars from the governorate of Ninavah (Northern,Iraq).Five categorical fruit properties assist us to detect the varieties under phenotypic study. Five plum cultivars identified, they referred by P. domistica Santa Rosa(SR),P. domistica,Black Diamond(BD);P. domistica, Black Beauty(BB);P. domistica Angeleno(AG) and P. domistica Red Heart(RH). Morp

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Muraro, Ronald P., Thomas H. Spreen, and Marisa L. Zansler. "Florida’s Citrus Canker Eradication Program: Cost-Benefit Analysis With an Example of an Endemic Citrus Canker Situation for Florida Processed Oranges." In ASME 2006 Citrus Engineering Conference. American Society of Mechanical Engineers, 2006. http://dx.doi.org/10.1115/cec2006-5201.

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The rapid expansion and integration of international trade, increased tourism, and changes in methods of production in recent decades have increased the likelihood of the introduction of invasive species to U.S. agriculture. Invasive species can have adverse environmental and/or economic impacts when introduced to a region. Economic impacts include marketing, production, and trade implications. One such invasive species imposing adverse economic impacts to the Florida citrus industry is a bacterial disease known as citrus canker (Xanthomonas axanopodis pv. citri). Citrus canker causes lesions

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Meyer, Christopher. "MASS Haptic." In 113th ACSA Annual Meeting Paper Proceedings. ACSA Press, 2025. https://doi.org/10.35483/acsa.am.113.6.

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The forested lands in the southeastern United States account for approximately 40% of the nation’s 521 million acres of timberland, which translates to about 208.4 million acres in U.S. forestry region eight1. These timber stands primarily consist of softwoods, with various uses in wood markets including wood pellets, pulp, chip-in-saw products, and sawtimber. Long-term timber management strategies prioritizing low-grade fiber products may hinder the forest’s capacity to satisfy the lumber demands of construction markets, especially with the rise of mass timber and other solid wood product mar

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Wibisono, Doandy Y., Marte Gutierrez, Dipaloke Majumder, and Pradeep K. Gautam. "Development of a Weak But Brittle Analog Sediment Rock for Experimental Study." In 57th U.S. Rock Mechanics/Geomechanics Symposium. ARMA, 2023. http://dx.doi.org/10.56952/arma-2023-0800.

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ABSTRACT Laboratory-tested results in rock mechanics have played a crucial role in understanding rock behavior and failure mechanisms. This paper outlines the development of an analog rock, similar to sandstone, for an experimental study that yields a low unconfined compressive strength yet exhibits brittle failure characteristics. The F-75 Ottawa sand, Type I/II commercial grade Portland cement, air entrainment admixture, and water constitute the raw mixtures of the developed analog rock. The result is a reproducible homogeneous and isotropic rock. The effect of the air entrainment admixture

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Bucciarelli, Federico, Giuseppe Macoretta, Bernardo Disma Monelli, et al. "A Novel Testing Methodology to Predict the Endurance of Ball Joints in Absence of Lubrication at High Temperature." In ASME Turbo Expo 2023: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/gt2023-102586.

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Abstract The enhancement of the operational flexibility of axial expanders can be obtained through the implementation of Nozzle Guide Vane (NGV). This design architecture includes moving parts typically sustained by ball joints, whose wear behavior might be important to define the maintenance interval of the expander and define its operational availability. This is especially true when considering challenging loading and temperature conditions. Usually, tribological tests are performed by pin-on disk or similar test methods. However, these techniques neglect important factors as actual sliding

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Miu, Lucretia, Cristina Carsote, Emanuel Vacalie, Mihaela Niculescu, Nicolae Catrina, and Marcel Ionescu. "BEHAVIOUR OF ANIMAL-ORIGIN GELATINS TO ARTIFICIAL AGEING IN THE PROCESS OF RESTORING GILDED WOOD." In 23rd SGEM International Multidisciplinary Scientific GeoConference 2023. STEF92 Technology, 2023. http://dx.doi.org/10.5593/sgem2023v/6.2/s25.06.

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Animal-origin glues are adhesives made by boiling animal tissues for a long time, and from the chemical point of view they are gelatinous and albuminoid protein substances bearing different names. The most frequently used are gelatins. They are extracted from raw animal hide residues, from cartilages, tendons, and from the gelatinous matter extracted from bones, on which the name and quality of gelatin depends. The gelatin extracted from unhaired hide waste/pelt waste resulting from unhairing bovine hide from tanneries was used in this article to study the behaviour to accelerated ageing of tw

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EricksonKirk, MarjorieAnn, Mark T. EricksonKirk, Stan Rosinski, and Jack Spanner. "Insights Arising From a Comparison of the tanh and Exponential Fitting Methods for Charpy V-Notch Energy Data." In ASME 2007 Pressure Vessels and Piping Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/pvp2007-26305.

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In the 1960s and 1970s when the surveillance programs for currently operating commercial nuclear reactors were established state of knowledge limitations resulted in the use of Charpy-V notch (CVN) specimens rather than fracture toughness specimens. Reasonable success has since been achieved in correlating CVN and fracture toughness parameters. Such correlations provide an important part of the technical basis for both current regulations and ASME codes. These correlations imply that trends manifest in CVN data must also appear in fracture toughness data even though empirical evidence demonstr

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Звіти організацій з теми "Commercial tree species"

Gary D. Kronrad. Managing Commercial Tree Species for Timber Production and Carbon Sequestration: Management Guidelines and Financial Returns. Office of Scientific and Technical Information (OSTI), 2006. http://dx.doi.org/10.2172/927777.

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Keto, Aila, and Keith Scott. Impacts of intensive native forest logging on the endangered Greater Glider in Queensland: A response to Eco Logical Australia Risk Assessment and Department of Agriculture and Fisheries Protection Measures. Australian Rainforest Conservation Society Inc, 2024. http://dx.doi.org/10.62974/bxpw2062.

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It is clear that selective logging has a significant impact on the Greater Glider. Whereas the Protection Measures proposed by the Department of Agriculture and Fisheries (DAF) may produce a small decrease in the impact, DAF is proposing to continue significantly impacting this endangered species. The application of a policy to balance jobs and the environment is inappropriate for an endangered species. The overall approach of the risk assessment and DAF’s response does not appear to take account of the fact that the Greater Glider is already endangered and in serious decline. The risk assessm

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Shoseyov, Oded, Steven A. Weinbaum, Raphael Goren, and Abhaya M. Dandekar. Biological Thinning of Fruit Set by RNAase in Deciduous Fruit Trees. United States Department of Agriculture, 1993. http://dx.doi.org/10.32747/1993.7568110.bard.

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Fruit thinning is a common and necessary practice for commercial fruit production in many deciduous tree fruit species. Fruit thinning in apple may be accomplished with a variety of chemical thinning agents, but the use of these chemicals is a subject of environmental concern. It has been shown recently that RNase enzyme, secreted from the stigma and the style, inhibits pollen germination and pollen tube elongation. In this study we have been able to show that Aspergillus niger B-1 RNase can effectively inhibit peach and apple pollen germination, and tube elongation in-vitro, as well as thin f

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Droby, Samir, Joseph W. Eckert, Shulamit Manulis, and Rajesh K. Mehra. Ecology, Population Dynamics and Genetic Diversity of Epiphytic Yeast Antagonists of Postharvest Diseases of Fruits. United States Department of Agriculture, 1994. http://dx.doi.org/10.32747/1994.7568777.bard.

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One of the emerging technologies is the use of microbial agents for the control of postharvest diseases of fruits and vegetables. A number of antagonistic microorganisms have been discovered which have the potential to effectively control postharvest diseases. Some of this technology has been patented and commercial products such as AspireTM (Ecogen Corporatin, Langhorne, PA, USA), Biosave 10TM and Biosave 11TM (Ecoscience Inc., Worchester, MA, USA) have been registered for commercial use. The principal investigator of this project was involved in developing the yeast-based biofungicide-Aspire

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Boyle, M., and Elizabeth Rico. Terrestrial vegetation monitoring at Fort Matanzas National Monument: 2019 data summary. National Park Service, 2022. http://dx.doi.org/10.36967/nrds-2293409.

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The Southeast Coast Network (SECN) conducts long-term terrestrial vegetation monitoring as part of the nationwide Inventory and Monitoring Program of the National Park Service (NPS). The vegetation community vital sign is one of the primary-tier resources identified by SECN park managers, and it is currently conducted at 15 network parks (DeVivo et al. 2008). Monitoring plants and their associated communities over time allows for targeted understanding of ecosystems within the SECN geography, which provides managers information about the degree of change within their parks’ natural vegetation.

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Boyle, Maxwell. Terrestrial vegetation monitoring at Canaveral National Seashore: 2022 data summary. National Park Service, 2024. http://dx.doi.org/10.36967/2303291.

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The Southeast Coast Network (SECN) conducts long-term terrestrial vegetation monitoring as part of the NPS Inventory and Monitoring Program. The vegetation community vital sign is one of the primary-tier resources identified by SECN park managers, and monitoring is conducted at 15 network parks (DeVivo et al. 2008). Monitoring plants and their associated communities over time allows for targeted understanding of ecosystems within the SECN geography, which provides managers information about the degree of change within their parks? natural vegetation. 2022 marked the first year of conducting th

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Dorr, Brian S., Kristi L. Sullivan, Paul D. Curtis, Richard B. Chipman, and Russell D. McCullough. Double-crested Cormorants. U.S. Department of Agriculture, Animal and Plant Health Inspection Service, 2016. http://dx.doi.org/10.32747/2016.7207735.ws.

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The history of conflict between double-crested cormorants and human interest in fisheries is long and convoluted. Overall, double-crested cormorants are not major consumers of commercial and sportfish species. However, exceptions have been recorded at specific sites with documented impacts on local fisheries. Double-crested cormorants can have a significant impact on vegetation at breeding sites through normal nesting activities. Their guano is acidic and can change soil chemistry, killing ground vegetation and irreversibly damaging nest trees. Humans should avoid direct contact with excrement

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Rinkevich, Baruch, and Cynthia Hunter. Inland mariculture of reef corals amenable for the ornamental trade. United States Department of Agriculture, 2006. http://dx.doi.org/10.32747/2006.7695880.bard.

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The worldwide market for ornamental saltwater invertebrates supplies the needs of millions of aquarium hobbyists, public exhibitions (i.e., zoos) universities and research institutions. With respect to reef building corals, it is estimated that more than half a million coral colonies/year from a total 93 genera, were exported globally during the period of 1985-1997. International value of retail sale of live coral trade alone is estimated as $78 million in 1997 (not including the illegally, widely smuggled material). The continuous, large-scale collection of marine organisms is responsible, in

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Lichter, Amnon, Joseph L. Smilanick, Dennis A. Margosan, and Susan Lurie. Ethanol for postharvest decay control of table grapes: application and mode of action. United States Department of Agriculture, 2005. http://dx.doi.org/10.32747/2005.7587217.bard.

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Original objectives: Dipping of table grapes in ethanol was determined to be an effective measure to control postharvest gray mold infection caused by Botrytis cinerea. Our objectives were to study the effects of ethanol on B.cinerea and table grapes and to conduct research that will facilitate the implementation of this treatment. Background: Botrytis cinerea is known as the major pathogen of table grapes in cold storage. To date, the only commercial technology to control it relied on sulfur dioxide (SO₂) implemented by either fumigation of storage facilities or from slow release generator pa

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Galili, Naftali, Roger P. Rohrbach, Itzhak Shmulevich, Yoram Fuchs, and Giora Zauberman. Non-Destructive Quality Sensing of High-Value Agricultural Commodities Through Response Analysis. United States Department of Agriculture, 1994. http://dx.doi.org/10.32747/1994.7570549.bard.

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The objectives of this project were to develop nondestructive methods for detection of internal properties and firmness of fruits and vegetables. One method was based on a soft piezoelectric film transducer developed in the Technion, for analysis of fruit response to low-energy excitation. The second method was a dot-matrix piezoelectric transducer of North Carolina State University, developed for contact-pressure analysis of fruit during impact. Two research teams, one in Israel and the other in North Carolina, coordinated their research effort according to the specific objectives of the proj

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