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Artículos de revistas sobre el tema "Maple leaves"

Autor: Grafiati

Publicado: 26 de julio de 2024

Última modificación: 31 de julio de 2025

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1

Ashton, P. Mark S., Hae Soon Yoon, Rajesh Thadani, and Graeme P. Berlyn. "Seedling Leaf Structure of New England Maples (Acer) in Relation to Light Environment." Forest Science 45, no. 4 (1999): 512–19. http://dx.doi.org/10.1093/forestscience/45.4.512.

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Abstract Seedling leaves of the genus Acer from southern New England were compared in relation to light. The species investigated were red maple (A. rubrum L.), a species tolerant of xeric and hydric sites; silver maple (A. saccharinum L.), a species restricted to riparian sites that are periodically flooded; and sugar maple (A. saccharum Marsh.), a mesic species of lower slopes and valleys. Germinating seedlings of all species were collected and grown within four shade treatments that had contrasting light quantity and quality: (1) approximately 100% of full sunlight, red:far-red ratio = 1.27

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2

Griffin, Jason J. "(112) Heat and Drought Affect Photosynthesis of Sugar Maple (Acer saccharum) Ecotypes." HortScience 40, no. 4 (2005): 1079A—1079. http://dx.doi.org/10.21273/hortsci.40.4.1079a.

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Common sugar maple (Acer saccharum Marshall) selections suffer from prolonged drought and constant wind on the southern Great Plains. Nonirrigated plants often have scorched and torn leaves as a result of these environmental stresses. In field studies, a sugar maple ecotype native to western Oklahoma (known as `Caddo' maple) has shown improved tolerance to drought and leaf tatter. A study to examine drought tolerance of seedling `Caddo' maple compared to typical seedling sugar maple was established at the John C. Pair Horticultural Center. One seedling of each type was planted in a single 38-L

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3

Jonczak, Jerzy, Agnieszka Parzych, and Zbigniew Sobisz. "Dynamics of Cu, Mn, Ni, Sr and Zn release during decomposition of four types of litter in headwater riparian forests in northern Poland." Forest Research Papers 75, no. 2 (2014): 1–8. http://dx.doi.org/10.2478/frp-2014-0018.

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Abstract The aim of the study was to compare the dynamics of Cu, Mn, Ni, Sr and Zn release during decomposition of leaves of Black alder (native material), Norway maple, Red oak and European beech (exogenous material) in the area of headwater riparian forests along the upper course of the Kamienna Creek (Northern Poland). Litter bag method was used in the experiment. Initial materials differed in terms of their chemical composition. Cu, Mn, Ni, Sr and Zn contents were low in general, and in fact, even a few times lower than limit values for decomposition rate. Different trends in the dynamics

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4

Jonczak, Jerzy, Agnieszka Parzych, and Zbigniew Sobisz. "Dynamics of Cu, Mn, Ni, Sr and Zn release during decomposition of four types of litter in headwater riparian forests in northern Poland." Forest Research Papers 75 (2) (June 1, 2014): 193–200. https://doi.org/10.2478/frp-2014-0018.

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The aim of the study was to compare the dynamics of Cu, Mn, Ni, Sr and Zn release during decomposition of leaves of Black alder (native material), Norway maple, Red oak and European beech (exogenous material) in the area of headwater riparian forests along the upper course of the Kamienna Creek (Northern Poland). Litter bag method was used in the experiment. Initial materials differed in terms of their chemical composition. Cu, Mn, Ni, Sr and Zn contents were low in general, and in fact, even a few times lower than limit values for decomposition rate. Different trends in the dynamics of the le

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5

Zhang, Ming, Jeehwan Choe, Ting Bu, Shuilin Liu, and Sooah Kim. "Comparison of Antioxidant Properties and Metabolite Profiling of Acer pseudoplatanus Leaves of Different Colors." Antioxidants 12, no. 1 (2022): 65. http://dx.doi.org/10.3390/antiox12010065.

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Acer pseudoplatanus (maple) is a widely grown ornamental plant. In addition to its ornamental and ecological value, it also has potentially high economic value. It is a rich source of polyphenols and exhibits antioxidant activity. However, the relationship between polyphenol content and antioxidant activity in maple leaves of different colors (green, yellow, and red) has not yet been investigated. In this study, the total polyphenol (TP), total flavonoid (TFlav), tannin (TET), chlorophyll a and b (Chl a and b), total anthocyanin (TAN), and total carotene (TAC) contents in maple leaves of diffe

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6

Spooner, Jeffrey M. "Dying under the Maple Leaves." Hastings Center Report 24, no. 4 (1994): 2. http://dx.doi.org/10.2307/3562831.

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7

St. Clair, Samuel B., and Jonathan P. Lynch. "Photosynthetic and antioxidant enzyme responses of sugar maple and red maple seedlings to excess manganese in contrasting light environments." Functional Plant Biology 31, no. 10 (2004): 1005. http://dx.doi.org/10.1071/fp04049.

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Manganese (Mn) toxicity may be a significant constraint to forest health on acidic, non-glaciated soils. We hypothesised that sugar maple (Acer saccharum Marsh.) and red maple (Acer rubrum L.) seedlings differ in their tolerance to excess Mn, and that photosynthetic sensitivity to excess Mn is exacerbated at higher light intensities through photo-oxidative stress. To test these hypotheses, we assessed photosynthesis and antioxidant enzyme responses of sugar maple and red maple seedlings at variable Mn and light levels in a greenhouse study. In both species, high Mn treatments impaired photosyn

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8

Sibley, Jeff, D. Joseph Eakes, Charles Gilliam, Gary Keever, William Dozier, and Curt Peterson. "Anatomy and Morphology of Select Red Maple Cultivars." Arboriculture & Urban Forestry 21, no. 3 (1995): 136–44. http://dx.doi.org/10.48044/jauf.1995.023.

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This study was conducted to compare and define foliage features of select red maple and red maple hybrid cultivars under similar environmental conditions. Nine red maple (Acerrubrum) cultivars, three Freeman maple (Acer xfreemanii) cultivars, and a red maple seedling selection were evaluated in a field study for differences in average leaf area, petiole length, stomatal density, foliar nitrogen (N) content, and chlorophyll content. Leaves of the three A. x freemanii cultivars were the largest. Leaves of A. rubrum 'Autumn Flame' were the smallest. 'Autumn Blaze' had the highest stomatal density

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9

Sauvesty, A., F. Page, and J. Huot. "A simple method for extracting plant phenolic compounds." Canadian Journal of Forest Research 22, no. 5 (1992): 654–59. http://dx.doi.org/10.1139/x92-087.

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Quantitative estimation of phenolic compounds in plant tissues remains uncertain, mainly because those substances are unstable and easily degradable. In this research we have developed and tested a new method for extracting phenolic compounds from sugar maple (Acersaccharum Marsh.) leaves. The research involved three steps: (i) various procedures currently used for extraction of phenolic compounds were tested with five pure phenolic acids; (ii) the extraction solvent, the procedure for dissolving the phenolic compounds, the temperature, and the duration of the treatment were tested on maple le

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10

Bielyk, Yuliia, Vasyl Savosko, T. Lykholat, Hermann Heilmeier, and Ivan Grygoryuk. "Ecological determination of chlorophyll content in the leaves of trees naturally growing on devastated lands at iron ore waste rock dumps." Biological Systems: Theory and Innovation 12, no. 4 (2021): 5–18. https://doi.org/10.31548/biologiya2021.04.001.

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The content of chlorophyll in leaves of tree species naturally growing on devastated lands was studied- Ash-leaved maple (Acer negundo L.), Black locust (Robinia pseudoacacia L.) and Silver Birch (Betula pendula Roth.) were investigated. The analysis of the obtained results showed that in trees naturally growing on devastated lands at Petrovsky iron ore waste rock dumps the content of chlorophyll in leaves was less than in the control plot: by 35-65% in Ash-leaved maple, by 25-52% in Black locust- This resulte indicates difficult ecological conditions of these devastated lands. The content of

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11

Bentz, Jo-Ann, and Alden M. Townsend. "Nitrogen Fertilization and Use of Container-grown Maple Selections as Hosts by the Potato Leafhopper." Journal of the American Society for Horticultural Science 128, no. 6 (2003): 821–26. http://dx.doi.org/10.21273/jashs.128.6.0821.

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The suitability of container-grown clones of red maple, Acer rubrum L., as a host to the potato leafhopper, Empoasca fabae Harris (Homoptera: Cicadellidae), under different fertilization regimes was determined, and compared to different freeman maple cultivars (A. ×freemanii E. Murray). Three clonal selections of red maple (USNA numbers 56026, 59904, and 55410), and three freeman maple cultivars (55892 `Indian Summer', 67256 `Jeffersred' [trademark Autumn Blaze], and 55890 `Armstrong') were potted in 7.6-L containers, fertilized with either 0, 3.3, or 6.6 g/pot of calcium nitrate and used in e

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12

Bentz, Jo-Ann, and Alden M. Townsend. "Nitrogen Fertilization and Use of Container-grown Maple Selections as Hosts by the Potato Leafhopper." Journal of the American Society for Horticultural Science 128, no. 6 (2003): 821–26. https://doi.org/10.21273/jashs.128.6.821.

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The suitability of container-grown clones of red maple, Acer rubrum L., as a host to the potato leafhopper, Empoasca fabae Harris (Homoptera: Cicadellidae), under different fertilization regimes was determined, and compared to different freeman maple cultivars (A. ×freemanii E. Murray). Three clonal selections of red maple (USNA numbers 56026, 59904, and 55410), and three freeman maple cultivars (55892 `Indian Summer', 67256 `Jeffersred' [trademark Autumn Blaze], and 55890 `Armstrong') were potted in 7.6-L containers, fertilized with either 0, 3.3, or 6.6 g/pot of calcium nitrate and used in e

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13

Wu, Peng, Maodong Cai, Xiaomei Yi, et al. "Sweetgum Leaf Spot Image Segmentation and Grading Detection Based on an Improved DeeplabV3+ Network." Forests 14, no. 8 (2023): 1547. http://dx.doi.org/10.3390/f14081547.

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Leaf spot disease and brown spot disease are common diseases affecting maple leaves. Accurate and efficient detection of these diseases is crucial for maintaining the photosynthetic efficiency and growth quality of maple leaves. However, existing segmentation methods for plant diseases often fail to accurately and rapidly detect disease areas on plant leaves. This paper presents a novel solution to accurately and efficiently detect common diseases in maple leaves. We propose a deep learning approach based on an enhanced version of DeepLabV3+ specifically designed for detecting common diseases

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14

Findley, Douglas, Gary Keever, Arthur Chappelka, D. Joseph Eakes, and Charles Gilliam. "Sensitivity of Red Maple Cultivars to Acute and Chronic Exposures of Ozone." Arboriculture & Urban Forestry 22, no. 6 (1996): 264–69. http://dx.doi.org/10.48044/jauf.1996.040.

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Five red maple (Acer rubrum) cultivars, 'Autumn Flame', 'Fairview Flame', 'Franksred' (Red Sunset™), 'Northfire' and 'October Glory', and 1 Freeman maple cultivar (Acer°° freemanii 'Autumn Blaze', an interspecific cross between red maple and silver maple) were exposed to 0,100, 200, or 300 ppb ozone for 4 hours on 2 consecutive days. Visible foliar injury, characterized as a stipple on the upper leaf surface, was observed in all ozone treatments except the control, and occurred on the oldest leaves only. 'Autumn Flame' had the least visible injury (less than 1% of the leaves injured), while 'N

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15

Prasad, R. B. N., and Paul-Gerhard Gülz. "Surface Structure and Chemical Composition of Leaf Waxes from Quercus robur L., Acer pseudoplatanus L. and Jug Ians regia L." Zeitschrift für Naturforschung C 45, no. 7-8 (1990): 813–17. http://dx.doi.org/10.1515/znc-1990-7-811.

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Abstract The leaves of three deciduous broadleaf trees namely Quercus rohur L. (oak), Acer pseudo- platanus L. (maple) and Juglans regia L. (walnut) have different wax surface structures with different chemical compositions. On both the upper and lower side of the oak leaf, crystalloid platelets with sharp fringed edges were observed. Maple and walnut leaf surfaces showed quite different crystalloid arrangements on the upper and the lower side of the leaves. On the lower side of the maple leaf crystalloid platelets in form of lumps were found, whereas the upper side showed no crystalloids. Wal

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16

Tejo, Camila F., Darlene Zabowski, and Nalini M. Nadkarni. "Total and epiphytic litter under the canopy of Acer macrophyllum in an old-growth temperate rainforest, Washington State, USA." Canadian Journal of Forest Research 45, no. 11 (2015): 1654–61. http://dx.doi.org/10.1139/cjfr-2014-0492.

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The amounts and ecological importance of epiphytic litterfall has often been overlooked in forest ecosystem studies. However, epiphytes participate in whole-ecosystem dynamics by capturing and retaining nutrients from atmospheric sources and transferring these nutrients to other ecosystem components. We quantified epiphytic litterfall under the canopy of mature bigleaf maples (Acer macrophyllum Pursh) and compared it with other litter components in an old-growth temperate rainforest in Washington State. Total litterfall during one year was 4760 kg·ha−1, with the greatest contribution from bigl

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17

Zwack, James A., William R. Graves, and Alden M. Townsend. "Drought Resistance among Freeman Maples." HortScience 32, no. 3 (1997): 508C—508. http://dx.doi.org/10.21273/hortsci.32.3.508c.

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Freeman maples (Acer × freemanii E. Murray) are marketed as stress-resistant alternatives to red maples (Acer rubrum L.), but few data from direct comparisons of these species are available. As a first step in comparing the stress resistance of red maple and Freeman maple, responses to drought were studied in Acer × freemanii `Autumn Fantasy', `Celebration', and `Marmo'. Plants grown from rooted cuttings were treated by withholding irrigation through four drought cycles of increasing severity that were separated by irrigation to container capacity. Drought reduced shoot dry mass, root dry mass

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18

Weiland, J., and G. Stanosz. "Sawadaea tulasnei Powdery Mildew of Norway Maple (Acer platanoides) in North America." Plant Disease 90, no. 6 (2006): 830. http://dx.doi.org/10.1094/pd-90-0830c.

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Norway maple leaves bearing powdery mildew were collected from one location in the fall of 2003 and four locations (as much as 1.5 km apart) in the fall of 2005 in Buffalo, NY. No powdery mildew was observed on leaves collected from sugar maples (Acer saccharum) that were present in the vicinity of affected Norway maples at two locations. Trees were located along streets and in yards. Diseased leaves were present throughout tree crowns but lower leaves were more commonly affected. White mycelium was present in irregular, discrete, scattered spots only on the upper surface of leaves and on both

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19

Kowalewski, Alexander R., Douglas D. Buhler, N. Suzanne Lang, Muraleedharan G. Nair, and John N. Rogers. "Mulched Maple and Oak Leaves Associated with a Reduction in Common Dandelion Populations in Established Kentucky Bluegrass." HortTechnology 19, no. 2 (2009): 297–304. http://dx.doi.org/10.21273/hortsci.19.2.297.

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Previous research has shown that maple (Acer spp.) leaf litter resulted in fewer common dandelions (Taraxacum officinale) when mulched into established turfgrass. However, the leaves used in that research may have contained herbicide residues and were separated by genus, not species. Our research compared the effects of pesticide-free mulched maple and oak (Quercus spp.) leaves on dandelion populations in an established kentucky bluegrass (Poa pratensis) stand maintained as a residential lawn on sandy loam soil. The objectives of this study were to quantify the effectiveness of maple or oak le

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20

Kowalewski, Alexander R., Douglas D. Buhler, N. Suzanne Lang, Muraleedharan G. Nair, and John N. Rogers. "Mulched Maple and Oak Leaves Associated with a Reduction in Common Dandelion Populations in Established Kentucky Bluegrass." HortTechnology 19, no. 2 (2009): 297–304. http://dx.doi.org/10.21273/horttech.19.2.297.

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Previous research has shown that maple (Acer spp.) leaf litter resulted in fewer common dandelions (Taraxacum officinale) when mulched into established turfgrass. However, the leaves used in that research may have contained herbicide residues and were separated by genus, not species. Our research compared the effects of pesticide-free mulched maple and oak (Quercus spp.) leaves on dandelion populations in an established kentucky bluegrass (Poa pratensis) stand maintained as a residential lawn on sandy loam soil. The objectives of this study were to quantify the effectiveness of maple or oak le

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21

van den Berg, Abby K., and Timothy D. Perkins. "Contribution of anthocyanins to the antioxidant capacity of juvenile and senescing sugar maple (Acer saccharum) leaves." Functional Plant Biology 34, no. 8 (2007): 714. http://dx.doi.org/10.1071/fp07060.

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Foliar anthocyanins are hypothesised to provide an additional source of photoprotection from photooxidative stress to the leaves in which they occur through their ability to scavenge excess free radical species. Although demonstrated to significantly enhance the antioxidant status of red morphs of fully expanded leaves of some species, the contribution of anthocyanins to the antioxidant capacity of the juvenile and senescing leaves in which they frequently occur has not been examined. Antioxidant activity of extracts from anthocyanic and non-anthocyanic juvenile and senescing sugar maple (Acer

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22

Tsandekova, O. L., and E. Yu Kolmogorova. "The role of antioxidants in the mechanisms of adaptation of Poa Pratensis L. under the influence of wooden plants." Bulletin of the State Nikitsky Botanical Gardens, no. 139 (August 11, 2021): 109–16. http://dx.doi.org/10.36305/0513-1634-2021-139-109-116.

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The article analyzes the results on the content of peroxidase, phenolic compounds and ascorbic acid in the leaves of meadow bluegrass during the growing season under plantations of woody plants (scots pine and ash-leaved maple). The peroxidase activity in the leaves of plant samples was determined by the method of A.N. Boyarkin, the content of ascorbic acid - by the titrimetric method using sodium 2,6-dichlorophenolindophenol, water-soluble phenolic compounds - by the Leventhal-Neubauer method. Mutual regulation of the plant antioxidant defense system was established, expressed in an increase

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23

Koike, Takayoshi. "Effects of CO2 in interaction with temperature and soil fertility on the foliar phenology of alder, birch, and maple seedlings." Canadian Journal of Botany 73, no. 2 (1995): 149–57. http://dx.doi.org/10.1139/b95-018.

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The foliar phenology of potted 1-year-old seedlings of alder (Alnus hirsuta Turcz.), maple (Acer mono Maxim.), and birch (Betula platyphylla Sukatch. var. japonica Hara) was observed from May to September in eight growth environments: factorial combinations of temperatures (light:dark, 30:20 °C and 26:16 °C), CO2 level (70 and 36 Pa), and nutrient regime (high versus low levels of fertilization). Seedlings grown at high fertility always had more leaves, and under high CO2, shed leaves slightly later than seedlings grown at low fertility. Except for maple, production of newly formed shoots and

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24

McCain, Douglas C., and John L. Markley. "More Manganese Accumulates in Maple Sun Leaves than in Shade Leaves." Plant Physiology 90, no. 4 (1989): 1417–21. http://dx.doi.org/10.1104/pp.90.4.1417.

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25

Užarević, Zvonimir, Ivna Štolfa, Nada Parađiković, Vera Cesar, and Hrvoje Lepeduš. "Physiology and biochemistry of leaf bleaching in prematurely aging maple (Acer saccharinum L.) trees: I. Hydrogen peroxide level, antioxidative responses and photosynthetic pigments." Acta Botanica Croatica 70, no. 2 (2011): 121–32. http://dx.doi.org/10.2478/v10184-010-0009-2.

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Physiology and biochemistry of leaf bleaching in prematurely aging maple (Acer saccharinumL.) trees: I. Hydrogen peroxide level, antioxidative responses and photosynthetic pigmentsEssential signaling processes such as changes in calcium mobilization, protein phosphorylation and gene expression are known to be modulated by hydrogen peroxide (H2O2). A lot of silver maple trees in the city of Osijek (Croatia) were noticed to have bleached leaves by early summer as well as during the whole vegetation season. In this study we aimed to investigate the processes that regulate H2O2levels in healthy (g

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26

Fortin, Michel, and Yves Mauffette. "The suitability of leaves from different canopy layers for a generalist herbivore (Lepidoptera: Lasiocampidae) foraging on sugar maple." Canadian Journal of Forest Research 32, no. 3 (2002): 379–89. http://dx.doi.org/10.1139/x01-205.

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Variations of leaf suitability within forest canopies may have important consequences for the biology of phytophagous insects. In this study we examined over 4 consecutive years (19941997), the influence of vertical stratification of leaves within a sugar maple (Acer saccharum Marsh.) stand on biological performance and feeding preference of Malacosoma disstria Hbn. Each year, 10 healthy sugar maple trees and about 15 understory sugar maple seedlings were selected. Leaves were collected from the lower (36 m above ground) and the upper crown (2025 m above ground) sections of the trees and fr

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27

Townsend, A. M., and L. W. Douglass. "Evaluation of Various Traits of 40 Selections and Cultivars of Red Maple and Freeman Maple Growing in Maryland." Journal of Environmental Horticulture 16, no. 4 (1998): 189–94. http://dx.doi.org/10.24266/0738-2898-16.4.189.

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Abstract Thirty-seven red maple (Acer rubrum L.) and three Freeman maple (A. x freemanii E. Murray) selections and commercial cultivars were evaluated for six years in a replicated field plot at Glenn Dale, MD. Significant differences among clones occurred for growth rate; for time, intensity, and duration of autumn color; for time of growth initiation in the spring; and for injury sustained from potato leafhopper (PLH) [Empoasca fabae (Harris)] feeding. The red maple cultivars showing the best red color over three years time were ‘Autumn Flame,’ ‘Brandywine,’ ‘Cumberland,’ ‘Red Rocket,’ ‘Some

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28

Goulet, France, and Pierre Bellefleur. "Leaf morphology plasticity in response to light environment in deciduous tree species and its implication on forest succession." Canadian Journal of Forest Research 16, no. 6 (1986): 1192–95. http://dx.doi.org/10.1139/x86-212.

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Sun leaves of five deciduous tree species were shaded, while shade leaves of the same species were exposed to direct rays of the sun prior to budbreak and during leaf expansion. Thickness, area, and density thickness (fresh weight per unit area) were measured and compared with sun and shade leaves that were used as a control. These parameters showed a considerable differentiation in leaf structure both for the control and treated leaves, particularly with very tolerant (American beech and sugar maple) and intermediate (yellow birch) species; this was apparently associated with the prevailing l

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29

Hilaire, Rolston St, and William R. Graves. "Foliar Traits of Sugar Maples and Black Maples Near 43 °N Latitude in the Eastern and Central United States." Journal of the American Society for Horticultural Science 124, no. 6 (1999): 605–11. http://dx.doi.org/10.21273/jashs.124.6.605.

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Selection of sugar maples (Acer saccharum Marsh.) and black maples (Acer saccharum Marsh. ssp. nigrum Desm. or Acer nigrum Michx. f.) that will be more resilient than existing cultivars in managed landscapes could be facilitated by defining relationships between geographic origin and foliar traits critical to leaf function. We examined variation in leaf morphology and anatomy of both taxa, known collectively as hard maples, near 43 °N latitude and tested for relationships between foliar traits and the longitude of origin from 70 ° to 94 °W longitude. Leaves exposed to direct solar radiation we

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30

Kabíček, J. "Maple Trees – Host Plants for Some Phytoseiid Mites." Scientia Agriculturae Bohemica 48, no. 1 (2017): 1–7. http://dx.doi.org/10.1515/sab-2017-0001.

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AbstractPhytoseiid mite communities on Acer pseudoplatanus, A. platanoides, and A. campestre were monitored in 2013-2014. Totally 3657 specimens of phytoseiid mites belonging to seven species (Euseius finlandicus, Neoseiulella aceri, N. tuberculata, Typhlodromus (Typhlodromus) pyri, Paraseiulus soleiger, P. triporus, and Phytoseius echinus) were found on the examined maple leaves. N. aceri, the most common species, was dominant and frequently present on the leaves of both A. platanoides and A. campestre. The leaves of A. pseudoplatanus were favourable habitats for both E. finlandicus and N. tu

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31

Zhang, Lu, Zong-Cai Tu, Tao Yuan, et al. "New Gallotannin and other Phytochemicals from Sycamore Maple (Acer pseudoplatanus) Leaves." Natural Product Communications 10, no. 11 (2015): 1934578X1501001. http://dx.doi.org/10.1177/1934578x1501001143.

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The maple (Acer) genus is a reported source of bioactive (poly)phenols, including gallotannins, but several of its members, such as the sycamore maple (A. pseudoplatanus). remain uninvestigated. Herein, thirty-nine compounds, including a new gallotannin, 1,2,3-tri- O-galloyl-6- O-( p-hydroxybenzoyl)-β-D-glucopyranoside (1), and thirty-eight (2-39) known compounds, consisting of four gallotannins, one ellagitannin, thirteen flavonoids, eight hydroxycinnamic acids, ten benzoic acid derivatives, and two sesquiterpenoids, were isolated from sycamore maple leaves. Their structures were determined b

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32

Leksungnoen, Nisa, Roger K. Kjelgren, Richard C. Beeson, Paul G. Johnson, Grant E. Cardon, and Austin Hawks. "Salt Tolerance of Three Tree Species Differing in Native Habitats and Leaf Traits." HortScience 49, no. 9 (2014): 1194–200. http://dx.doi.org/10.21273/hortsci.49.9.1194.

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We investigated if salt tolerance can be inferred from observable cues based on a woody species’ native habitat and leaf traits. Such inferences could improve species selection for urban landscapes constrained by soils irrigated with reclaimed water. We studied the C3 tree species Acer grandidentatum Nutt. (canyon maple; xeric-non-saline habitat) that was hypothesized to have some degree of salt tolerance based on its semiarid but non-saline native habitat. We compared it with A. macrophyllum Pursh. (bigleaf maple) from mesic/riparian-non-saline habitats with much larger leaves and Eucalyptus

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33

Rier, Steven T., Nancy C. Tuchman, and Robert G. Wetzel. "Chemical changes to leaf litter from trees grown under elevated CO2and the implications for microbial utilization in a stream ecosystem." Canadian Journal of Fisheries and Aquatic Sciences 62, no. 1 (2005): 185–94. http://dx.doi.org/10.1139/f04-148.

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Chemical alterations to leaf litter associated with growth under elevated CO2may impact aquatic ecosystems that rely on terrestrial leaf litter as a carbon source. This study examined how elevated CO2altered the chemistry and subsequent response of stream microorganisms growing on the leaf litter of three riparian tree species. Quaking aspen (Populus tremuloides), white willow (Salix alba), and sugar maple (Acer saccharum) were grown under ambient (360 parts per million) and elevated (720 parts per million) CO2for an entire growing season and senesced leaf litter was incubated in a stream for

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34

Kolb, T. E., and D. A. J. Teulon. "Relationship between sugar maple budburst phenology and pear thrips damage." Canadian Journal of Forest Research 21, no. 7 (1991): 1043–48. http://dx.doi.org/10.1139/x91-143.

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The relationship between budburst phenology and damage by the pear thrips (Taeniothripsinconsequens (Uzel) (Thysanoptera: Thripidae)) to sugar maple (Acersaccharum Marsh.) foliage was investigated in two studies. In the first study, seedlings in cages were exposed to adult thrips at different stages of budburst. Compared with uninfested control seedlings, introduction of five adult thrips per bud reduced total leaf area and average leaf size, and caused chlorosis, tattering, and cupping of leaves. Leaf area reduction and damage symptoms were greater for seedlings exposed to thrips when leaf ma

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Char, Bruce W., Keith O. Geddes, Gaston H. Gonnet, et al. "First Leaves: A Tutorial Introduction to Maple V." Journal of the Acoustical Society of America 98, no. 1 (1995): 21. http://dx.doi.org/10.1121/1.413756.

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VOGELMANN, J. E., B. N. ROCK, and D. M. MOSS. "Red edge spectral measurements from sugar maple leaves." International Journal of Remote Sensing 14, no. 8 (1993): 1563–75. http://dx.doi.org/10.1080/01431169308953986.

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37

Mickelbart, Michael V. "Variation in Leaf Nutrient Concentrations of Freeman Maple Resulting from Canopy Position, Leaf Age, and Petiole Inclusion." HortScience 45, no. 3 (2010): 428–31. http://dx.doi.org/10.21273/hortsci.45.3.428.

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Consistent evaluation of nursery crop nutrient status within and among plots and years requires careful consideration of leaf collection practices. The objectives of this study were to determine the differences and variability among leaf age and cardinal position within the tree. Another objective was to determine if petioles should be included in leaf samples. Leaves were collected from seven trees of the Freeman maple (red–silver maple hybrid) Celebration® (Acer ×freemanii) from two leaf ages (early- and late-season leaves) and four positions (north, south, east, and west). On the south side

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38

КИРИЧЕНКО, Н. И., та Ю. Н. БАРАНЧИКОВ. "ОБНАРУЖЕНИЕ ЧУЖЕРОДНОГО ВИДА МОЛЕВИДНЫХ ЧЕШУЕКРЫЛЫХ НА КЛЕНАХ В СИБИРСКИХ АРБОРЕТУМАХ". Сибирский лесной журнал, № 5 (31 жовтня 2023): 100–108. https://doi.org/10.15372/sjfs20230513.

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Сообщается о значительном повреждении листьев клена татарского ( Acer tataricum L.) в дендрарии Института леса им. В. Н. Сукачева СО РАН (ИЛ) в г. Красноярске и Центральном сибирском ботаническом саду СО РАН (ЦСБС) в г. Новосибирске. В 2008-2009 и 2023 гг. в среднем до 70 % апикальных листьев этого растения к середине лета несли погрызы. При этом к. приречный ( A. tataricum subsp. ginnala (Maxim.) Wesm.), произрастающий в соседстве с к. татарским в обоих дендрариях, был поражен не более чем на 35 %. Единичные характерные повреждения (не более чем на 5 % листьях в нижней части кроны деревьев) б

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39

Игнатова, М. А., Б. Л. Козловский, П. А. Дмитриев, М. В. Куропятников та Т. В. Вардуни. "СЕЗОННАЯ ДИНАМИКА ФОТОСИНТЕТИЧЕСКИХ ПИГМЕНТОВ У КЛЕНОВ ACER CAMPESTRE L., A. NEGUNDO L. И A. SACCHARINUM L. В РОСТОВЕ-НА-ДОНУ". Biosfera 14, № 2 (2022): 21. http://dx.doi.org/10.24855/biosfera.v14i2.670.

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The objective of the study carried out at Botanical Garden of Southern Federal University (Rostov-on-Don, Russia) was to assess the seasonal changes in photosynthetic pigments contents in the leaves of the maples Acer campestre L., A. negundo L., and A. saccharinum L. Leaves samples were collected from selected maple trees once a week. The contents of chlorophylls and carotenoids were determined spectrophotometrically and expressed per leaf area (mg/dm2). Similar seasonal changes in chlorophylls a and b in A. campestre, A. saccharinum, and A. negundo have been found. At the same time, the seas

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40

Stanosz, G. R. "Benomyl and acephate applications increase survival of sugar maple seedlings during their first growing season in northern Pennsylvania." Canadian Journal of Forest Research 24, no. 6 (1994): 1107–11. http://dx.doi.org/10.1139/x94-147.

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A study was conducted to determine the contributions of pathogenic fungi and insects to the mortality of sugar maple (Acersaccharum Marsh.) seedlings during their first season of growth. Replicated plots were located in four northern Pennsylvania stands in which the anthracnose pathogen, Disculacampestris (Pass.) von Arx, and the pear thrips, Taeniothripsinconsequens (Uzel), were associated with sugar maple seedlings. Survival was quantified for new seedlings treated with water (control), the systemic fungicide benomyl, the systemic insecticide acephate, or both, during May through August 1990

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41

Sibley, J. L., D. J. Eakes, C. H. Gilliam, G. J. Keever, and W. A. Dozier. "RED MAPLE CULTIVARS DIFFER IN FOLIAGE CHARACTERISTICS." HortScience 31, no. 5 (1996): 745b—745. http://dx.doi.org/10.21273/hortsci.31.5.745b.

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Average leaf area (LA) and petiole length (PL) was determined for 13 red maple selections May–Sept. 1993. Bloom types were determined based on the predominate flower structures present in Spring 1993 and 1994. Leaves were collected from an existing field study installed in Mar. 1990. Trees were drip-irrigated throughout the study, thereby eliminating moisture stress concerns. Acer×freemanii `Scarsen' (LA = 131.5 cm2), `Morgan' (LA = 93.6 cm2), and `Autumn Blaze' (LA = 83.9 cm2) had the largest leaves. Acer rubrum `Autumn Flame' (LA = 40.0 cm2) had the smallest leaves. Acer rubrum `October Glor

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42

Bielyk, Y. V., V. M. Savosko, Y. V. Lykholat, O. O. Izhboldin, and T. Y. Lykholat. "Content of phenolic compounds in leaves of trees growing on devastated lands at iron waste rock dump." Питання степового лісознавства та лісової рекультивації земель 51 (December 15, 2022): 72–85. http://dx.doi.org/10.15421/442207.

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Knowledge about the content of phenolic compounds in tree leaves growing on devastated lands may be important for foresting of the post-mining landscapes and for improving environmental quality in industrial areas. The object of this study was on standpoint of an ecosystem approach to determine the phenolic compounds concentrations in the leaves of the trees that grow naturally on the devastated lands at iron waste rock dump. Petrovsky waste rock dump areas at Kryvyi Rih Iron Ore Mining & Metallurgical District (central part of Ukraine) were chosen for the present research. During 2017–202

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43

Zhang, Yan, Hang Ma, Tao Yuan, and Navindra P. Seeram. "Red Maple (Acer Rubrum) Aerial Parts as a Source of Bioactive Phenolics." Natural Product Communications 10, no. 8 (2015): 1934578X1501000. http://dx.doi.org/10.1177/1934578x1501000824.

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The bark and stems of red maple ( Acer rubrum) are reported to contain bioactive phenolics but its aerial parts, namely, flowers and leaves, remain largely unexplored. This is unfortunate considering that various parts of the red maple were used for traditional medicinal purposes by the indigenous peoples of eastern North America, where this species is found. Herein, we report the identification of twenty-five (1–25) phenolics, including two new galloyl derivatives (1 and 2), from red maple flowers and leaves. Of these, ten compounds (1–10), including the new compounds, were isolated and ident

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Bielyk, Yuliia, Vasyl Savosko, Yuriy Lykholat, Hermann Heilmeier, and Ivan Grygoryuk. "Macronutrients and heavy metals contents in the leaves of trees from the devastated lands at Kryvyi Rih District (Central Ukraine)." E3S Web of Conferences 166 (2020): 01011. http://dx.doi.org/10.1051/e3sconf/202016601011.

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This research was performed at Petrovsky waste rock dump, the Central part of the Kryvyi Rih iron-ore & metallurgical district (Dnipropetrovsk region, Ukraine). The macronutrients (K, Ca, Mg, P and S) and heavy metals (Fe, Mn, Zn, Cu, Pb and Cd) contents in the leaves of three species of the trees (Ash-leaved maple, Silver Birch and Black locust) that were collected on devastated lands were assessed. It was established that trees which grow on the Petrovsky dump take place under evident shortage of nutrients (especially K and P) and excess of metals (especially Fe, Mn and Zn). It is reveal

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45

Wright, Daniel, and John Moran. "Adverse Effects of Atrinal (Dikegulac) on Plane Tree, Red Maple, and Norway Maple." Arboriculture & Urban Forestry 14, no. 5 (1988): 125–28. http://dx.doi.org/10.48044/jauf.1988.030.

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The adverse effects of trunk injected Atrinal (Maag, Inc.) were monitored to determine factors which may influence their occurrence. The foliar appearance of Atrinal injected plane tree, red maple, and Norway maple trees was used as an indication of phytotoxicity. Planes were the most sensitive to the phytotoxic effects of Atrinal followed by red maple, then Norway maple. Symptoms of Atrinal-induced phytotoxicity included wilting, curling, increased pubescence, and marginal necrosis on leaves. These symptoms gradually disappeared over the growing season. Injection points, monitored to determin

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46

Bauerle, W. L., T. H. Whitlow, T. L. Setter, and F. M. Vermeylen. "Abscisic Acid Synthesis in Acer rubrum L. Leaves—A Vapor-pressure-deficit-mediated Response." Journal of the American Society for Horticultural Science 129, no. 2 (2004): 182–87. http://dx.doi.org/10.21273/jashs.129.2.0182.

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Quantitative differences in leaf abscisic acid (ABA) among Acer rubrum L. (red maple) ecotypes were investigated. This study tested the hypothesis that seedlings from wet and dry maternal sites display distinctly different capacities to synthesize ABA in response to atmospheric vapor pressure deficits. The increased levels of ABA in leaf tissue in the red maple ecotypes were associated with atmospheric vapor pressure deficit (VPD). Leaves on well-watered plants responded to VPD by increasing their ABA levels and reducing their photosynthesis (Anet) and stomatal conductance (gs). Both ecotypes

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47

Bauerle, W. L., T. H. Whitlow, T. L. Setter, and F. M. Vermeylen. "Abscisic Acid Synthesis in Acer rubrum L. Leaves—A Vapor-pressure-deficit-mediated Response." Journal of the American Society for Horticultural Science 129, no. 2 (2004): 182–87. https://doi.org/10.21273/jashs.129.2.182.

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Quantitative differences in leaf abscisic acid (ABA) among Acer rubrum L. (red maple) ecotypes were investigated. This study tested the hypothesis that seedlings from wet and dry maternal sites display distinctly different capacities to synthesize ABA in response to atmospheric vapor pressure deficits. The increased levels of ABA in leaf tissue in the red maple ecotypes were associated with atmospheric vapor pressure deficit (VPD). Leaves on well-watered plants responded to VPD by increasing their ABA levels and reducing their photosynthesis (Anet) and stomatal conductance (gs). Both ecotypes

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48

Delisle-Houde, M., and R. J. Tweddell. "Sugar maple autumn-shed leaf extract: a potential antibacterial agent for the management of lettuce bacterial leaf spot (Xanthomonas campestris pv. vitians) and varnish spot (Pseudomonas cichorii)." Canadian Journal of Plant Science 100, no. 1 (2020): 78–85. http://dx.doi.org/10.1139/cjps-2019-0040.

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Different extracts prepared from wastes (barks, branches, needles, or leaves) of different trees (grey alder, balsam fir, American larch, red maple, sugar maple, white spruce, black spruce, jack pine, white pine, quaking aspen, sweet cherry, and northern red oak) were investigated for their potential use as antibacterial agents for the management of lettuce varnish spot and bacterial leaf spot caused by Pseudomonas cichorii (Swingle) Stapp and Xanthomonas campestris pv. vitians (Brown) Dye, respectively. Extracts were first screened for their antibacterial activities against P. cichorii and X.

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Hudelson, B., D. Smith, G. Stanosz, and M. Hanson. "First Report of Sawadaea tulasnei Powdery Mildew of Norway Maple (Acer platanoides) in Wisconsin." Plant Disease 92, no. 3 (2008): 485. http://dx.doi.org/10.1094/pdis-92-3-0485a.

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Leaves affected by powdery mildew were collected from a Norway maple tree in early October 2007 in Beaver Dam, WI (Dodge County). Diseased leaves were present throughout the crown of this tree, with white mycelium in irregular and often vein-associated spots and often covering as much as 50% of the upper surfaces of leaves. Examination of the lower surfaces revealed necrosis of the areas underlying mycelium. Blades of samaras also bore white mycelium. Chasmothecia were present singly or in groups on the mycelium. Morphology of chasmothecia, including simple and bifid appendages with uncinate t

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Macioszek, Violetta Katarzyna, Kamila Chalamońska, Jakub Oliwa, Aleksandra Maria Staszak, and Mirosław Sobczak. "Phenological, Physiological, and Ultrastructural Analyses of ‘Green Islands’ on Senescent Leaves of Norway Maple (Acer platanoides L.)." Plants 14, no. 6 (2025): 909. https://doi.org/10.3390/plants14060909.

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‘Green island’ symptoms in the form of vivid green, round spots visible on the senescent leaves of many plants and trees are mostly the results of pathogenic colonization by fungi, and the greenish tissue is often dead. Therefore, this study investigates whether green spots observed on senescent Norway maple (Acer platanoides L.) leaves were still alive and photosynthetically active. The appearance of ‘green islands’ on the leaves of young Norway maple trees was observed from the autumn of 2019 to 2022 in an urban forest (Bialystok, eastern Poland). However, in the late summer (September) of 2

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