Letteratura scientifica selezionata sul tema "Secrest Arboretum"
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Articoli di riviste sul tema "Secrest Arboretum"
1
Moore, Tyler, Nathan Malcomb e Gregory Wiles. "Climate Response of Dahurian Larch in Secrest Arboretum, Wooster, Ohio, USA". Tree-Ring Research 63, n. 2 (dicembre 2007): 111–15. http://dx.doi.org/10.3959/1536-1098-63.2.111.
Testo completo
2
Vargo, Lauren J., Gregory Wiles, Nicholas Wiesenberg, Christopher J. Williams e Ken Cochran. "Climate Response of Metasequoia glyptostroboides Inferred from Tree Rings, Secrest Arboretum, Wooster, Ohio, USA". Ohio Journal of Science 120, n. 2 (2 giugno 2020): 22. http://dx.doi.org/10.18061/ojs.v120i2.7073.
Testo completoAbstract (sommario):
Metasequoia glyptostroboides, a deciduous gymnosperm, also known as dawn redwood, was thought to be extinct until living members of the species were found in China in 1943. Analyzing the climate response of a transplanted stand of the trees can give insights into their physiological plasticity, into their use in restoration and reforestation, as well as into interpreting the environmental conditions of the geologic past from fossil Metasequoia. An annual ring-width chronology—spanning 1955 to 2010 and based on a stand of 19 M. glyptostroboides trees planted in Secrest Arboretum in northeast Ohio, USA—shows negative correlations with maximum monthly temperatures: with the strongest relationship with February and the warm months of June and July, all significant at the 99% confidence levels. A positive May to June precipitation correlation is the strongest moisture signal (p < 0.05) and the narrowest rings in the chronology occurred during the drought of 1987 to 1988, consistent with one of the warmest and driest Junes on record. These results have implications for the future as climate change affects the native and transplanted range of this species. Future response of this species to a changing climate will depend on the relative rates of warming maximum temperatures in the winter and summer, as well as changing moisture conditions during the summer months.
3
Nielsen, D. G., e M. J. Dunlap. "Control of Black Vine Weevil, 1987". Insecticide and Acaricide Tests 14, n. 1 (1 gennaio 1989): 329–30. http://dx.doi.org/10.1093/iat/14.1.329a.
Testo completoAbstract (sommario):
Abstract A large taxus (20 m circumference) growing at the Secrest Arboretum in Ohio was used to evaluate efficacy of selected insecticides against black vine weevil adults. A CO2 compression sprayer operating at 40 psi with a Teejet SS8004 flat-fan nozzle was used to apply treatments to run-off to 91-cm-wide sections of the plant. Treatments were separated by an equally wide buffer area. Sprays were applied 24 Jul under sunny skies, 33°C, and 0-8 km/h breeze. Treatment effectiveness was evaluated at 1, 3, 7, 14, 21, 28, 35, and 49 DAT by randomly clipping 6 8-12-cm sprigs from each treatment area. Two sprigs were placed in each of 3 9- by 16-cm cylindrical paper cartons fitted with nylon organdy cloth lids, along with 5 ovipositing weevils. Mortality was assessed 72 h after placing weevils with foliage. Moribund weevils were fed unsprayed foliage for an additional 96 h before final mortality counts were made.
4
Nielsen, D. G., e M. J. Dunlap. "Control of Black Vine Weevil, 1986". Insecticide and Acaricide Tests 14, n. 1 (1 gennaio 1989): 330. http://dx.doi.org/10.1093/iat/14.1.330.
Testo completoAbstract (sommario):
Abstract A large taxus (20-m circumference) growing at the Secrest Arboretum in Ohio was used to evaluate efficacy of selected insecticides against newly emerged black vine weevil adults. A CO2 compression sprayer operating at 40 psi with a Teejet SS8004 flat-fan nozzle was used to apply treatments to run-off to 91-cm-wide sections of the taxus on 22 Jul with conditions sunny, 24°C, and 8-16 km/h breeze. Between each treatment was a 91-cm-wide unsprayed buffer area. Samples were taken at 1, 2, 3, 7, 14, 21, and 28 DAT by randomly clipping 6 12-cm sprigs from each treatment area. Two sprigs were placed in each of 3 9- by 16-cm cylindrical paper cartons fitted with nylon organdy cloth lids, along with 5 ovipositing weevils. Mortality was assessed 72 h after placing weevils on foliage. Moribund adults were fed unsprayed foliage for an additional 72 h before final mortality was assessed.
5
Beckerman, Janna, James Chatfield e Erik Draper. "A 33-year Evaluation of Resistance and Pathogenicity in the Apple Scab–crabapples Pathosystem". HortScience 44, n. 3 (giugno 2009): 599–608. http://dx.doi.org/10.21273/hortsci.44.3.599.
Testo completoAbstract (sommario):
Crabapples (Malus spp.) are popular ornamental trees in the commercial and residential landscape. Over a 33-year period at the Secrest Arboretum, Wooster, OH, 287 accessions of ornamental crabapple were evaluated for their resistance to apple scab caused by the fungus Venturia inaequalis. Of these 287 accessions, 31 had no symptoms of scab for longer than a 10-year period and were identified as resistant to the disease. Of these 31 resistant accessions, 14 eventually displayed symptoms, presumably as a result of infection by one or more newly present races of the pathogen in the trial plot. Notable resistance breakdowns in accessions previously classified as resistant include the development of scab on M. × ‘Prairifire’, M. × ‘Bob White’, M. × ‘Red Jewel’, and M. floribunda. Corresponding to these changes of resistance is the putative development of new V. inaequalis races in North America: Race 5, possessing virulence to the Vm gene in ‘Prairifire’; Race 3 that infects M. × ‘Geneva’ but not M. baccata ‘Dolgo’; and the first identification and report of scab on a M. floribunda population that was reported as resistant even before the first 25 years of the evaluation. The detection of scab on this species suggests the presence of Race 7 in North America for the first time. Five named accessions remained free from scab for the entire 33-year trial: M. sargentii ‘Sargent’, M. baccata ‘Jackii’, M. × ‘Beverly’, M. × ‘Silver Moon’, and M. × ‘White Angel’ and may serve as sources of durable resistance in crabapple and commercial apple breeding in the Midwest.
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Ozgen, Mustafa, Artemio Z. Tulio, Ann M. Chanon, Nithya Janakiraman, R. Neil Reese, A. Raymond Miller e Joseph C. Scheerens. "(105) Variation in Cornelian Cherry Phytonutrient Capacity". HortScience 41, n. 4 (luglio 2006): 1038E—1039. http://dx.doi.org/10.21273/hortsci.41.4.1038e.
Testo completoAbstract (sommario):
To investigate the variation in the phytonutrients of Cornelian cherry (Cornus mas L.), fruit was harvested at the blush (S1), red (S2), and ripe (S3) stages from five genotypes maintained at the Secrest Arboretum, Wooster, Ohio. The S1-S3 samples were characterized for color reflectance and then frozen at –28 °C. After storage, samples were analyzed for dry weight (DW), total soluble solids (TSS), sugars (FRU + GLU), organic acids (ORG), total phenols (PHE), total anthocyanins (ACY), individual anthocyanins (IA), hydroyzable tannins (HT), and antioxidant capacity (FRAP and ABTS). From S1 to S3, DW and TSS increased by 24% and 21%, respectively, and L, hue angle, and chroma values decreased. On a DW basis, all analytical parameters were significantly influenced by genotype and stage. The ACY levels rose 7-fold during ripening, but PHE contents declined by 10%. In ripe fruit, HT comprised the bulk of the PHE constituents, whereas ACY accounted for only 7.6% of PHE levels. Variability among genotypes was moderate for all ripe fruit parameters but ACY. Ripe fruit varied little in color parameters and ACY (fwb) and IA (fwb) were not significantly different among cultivars. The Cy 3-gal and pel 3-gal levels were negatively correlated. Antioxidant capacity declined 16% to 18% during ripening. Ripe fruit FRAP and ABTS values were higher than those reported for most fruits, averaging 596 ± 85 and 629 ± 85 μmol TE eq./gDW, respectively. ABTS and FRAP values were highly correlated with each other and with PHE and HT contents, but were loosely and negatively related to ACY levels. Considering our limited sample size, we concluded that the phytonutrient capacity of cornelian cherry is substantial, predominantly associated with tannins and moderately variable among genotypes.
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Soltani, G. A. "SYMBOLS OF SECRET SOCIETIES IN THE SOCHI "DENDRARIY"". LANDSCAPE ARCHITECTURE IN THE GLOBALIZATION ERA, n. 3 (2022): 48–60. http://dx.doi.org/10.37770/2712-7656-2022-3-48-60.
Testo completoAbstract (sommario):
Sochi "Dendrariy" is a well-known tourist site, an example of landscape art, a scientific center for the introduction of subtropical plants on the Black Sea coast of the Caucasus. The park was founded in 1892 and is famous for its arboretum collection. The symbolism of the historical part of the "Dendrariy" is also interesting. The park was created as a private property, and showed the interests, views and preferences of its founder. It was not intended for the general public. The founder of the park, S.N. Khudekov, was a versatile person, an expert in gardening, choreographic and fine arts. He successfully used the highly artistic fountains, sculptures and vases of A. Durenne, inscribing the heritage of French culture in his romantic park. Therefore, sphinxes, chimeras, zodiac signs, gods of ancient Roman mythology could be seen in the Russian Caucasus at the end of the XIX century. The author's interpretation of the semantics of various elements of park sculpture and architecture, regarding various theosophical views of secret societies is given in the article. The meaning of such symbols and signs is diverse, as shown by previous studies. The connection of the objects of study with each other in space and their orientation relative to the sides of the light turns attention. The author does not exclude an accidental coincidence, since there is no information about the founder of the park belonging to Freemasonry. The preserved park is rightfully an object of historical and cultural heritage. He is able to create a certain mood, evokes themes for philosophical reflection as a true work of art. A certain preparation of the audience-listeners is required to perceive the information transmitted by the work of art, in accordance with the above.
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Noren, Benjamin J., Nicholas R. Lewis, Kelly Cristina Tonello, Anna Ilek e John T. Van Stan. "Hypothesis and theory: Do trees “release the tension” in rainwater? Surface tension reduction in throughfall and stemflow from urban trees". Frontiers in Forests and Global Change 6 (4 dicembre 2023). http://dx.doi.org/10.3389/ffgc.2023.1315936.
Testo completoAbstract (sommario):
Knowledge of the processes and impacts associated with the canopy’s partitioning of rainfall into stemflow (water that drains to the base of tree stems) and throughfall (water that drips through gaps and from canopy surfaces) has expanded in recent years. However, the effect of canopy interactions on the fundamental physical properties of rainwater as it travels through the canopy to the soil, particularly surface tension, remains understudied. To discuss specific hypotheses within this context and their relevance to ecohydrological theory, the surface tension of rainwater samples was examined directly. Over a period of 9 months, open rainwater, throughfall and stemflow samples were collected during 20 storms from 12 study trees located in Secrest Arboretum (about 2.5 km outside Wooster, Ohio). Study trees were selected to highlight a range of canopy characteristics, with each tree being from a unique deciduous species. Surface tension was measured using pendant drop goniometry, and measurements were analyzed for variation across study trees and correlation with event air temperature and rain intensity. In general, surface tension was reduced in throughfall and stemflow compared to measurements made for event rainwater, with median surface tension changes of −0.446 mN m−1 and −0.595 mN m−1 for throughfall and stemflow, respectively. The extent of this reduction varied among study trees (with changes as great as −6.5 to −5.5 mN m−1), and storm event characteristics were directly and indirectly correlated with surface tension changes in select cases. Hypothetically, a number of mechanisms may account for the observed reduction (and variation in this reduction) in surface tension, including differences in tree surface properties, canopy microenvironments, and microbiomes, and each warrant further research. Testing these hypotheses may advance broader ecohydrological theory as surface tension changes will influence wetting, absorption, and solute exchange processes within the canopy which, in turn, may affect related surface processes.
Tesi sul tema "Secrest Arboretum"
1
Moore, Tyler, Nathan Malcomb e Gregory Wiles. "Climate Response Of Dahurian Larch In Secrest Arboretum, Wooster, Ohio, USA". Tree-Ring Society, 2007. http://hdl.handle.net/10150/622556.
Testo completoAbstract (sommario):
Larix gmelinii (Rupr.) Kuzen. (Dahurian larch) is an important arctic tree-line species in the
northern boreal forests of Eurasia. The region’s climate is predicted to change dramatically over the next century, yet little is known about how this species will respond to secular changes in temperature and precipitation. To this end, a ring-width chronology from 25 cores from a stand of seven Dahurian larch trees growing in the Secrest Arboretum, northeastern Ohio, was developed to test the climatic sensitivity of the species in a more temperate climate. The chronology extends from 1931 to 2005 and correlation analysis with monthly precipitation and temperature records shows growth was most strongly limited by summer precipitation until recent decades when sensitivity has shifted to late spring precipitation. The results from this study serve as a contemporary analog to the future growth response of Dahurian larch under warmer and wetter growing conditions in the boreal and arctic regions of Eurasia.
Libri sul tema "Secrest Arboretum"
1
Knebusch, Kurt. 85 Acres on Route 83: Poetry Inspired by the Secrest Arboretum in Wooster, Ohio. Wooster Book Co, 1998.
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2
Jaffe, Michele. Secret Admirer: The Arboretti Family Saga - Book Four. Diversion Publishing Corp., 2014.
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