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- Stomatal conductance (6)
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- Acer grandidentatum (1)
Articles 1 - 30 of 54
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A Tree-Ring Based Reconstruction Of Logan River Streamflow In Northern Utah, Eric B. Allen, Tammy M. Rittenour, Justin Derose, Matthew F. Bekker, Roger Kjelgren, Brendan M. Buckley
A Tree-Ring Based Reconstruction Of Logan River Streamflow In Northern Utah, Eric B. Allen, Tammy M. Rittenour, Justin Derose, Matthew F. Bekker, Roger Kjelgren, Brendan M. Buckley
Plants, Soils, and Climate Faculty Publications
We created six new tree-ring chronologies in northern Utah, which were used with preexisting chronologies from Utah and western Wyoming to reconstruct mean annual flow for the Logan River, the largest tributary of the regionally important Bear River. Two reconstruction models were developed, a “Local” model that incorporated two Rocky Mountain juniper chronologies located within the basin, and a “Regional” model that also included limber pine and pinyon pine chronologies from a larger area. The Local model explained 48.2% of the variability in the instrumental record and the juniper chronologies better captured streamflow variability than Douglas-fir collected within the Logan …
Yields, Phenolic Profiles And Antioxidant Activities Of Ziziphus Jujube Mill. In Response To Different Fertilization Treatments, Chun-Sen Wu, Qing-Han Gao, Roger Kjelgren, Xu-Dan Guo, Min Wang
Yields, Phenolic Profiles And Antioxidant Activities Of Ziziphus Jujube Mill. In Response To Different Fertilization Treatments, Chun-Sen Wu, Qing-Han Gao, Roger Kjelgren, Xu-Dan Guo, Min Wang
Plants, Soils, and Climate Faculty Publications
Increasing demand for more jujube (Ziziphus jujube Mill.) production requires understanding the specific fertilization needs of jujube trees. This study was conducted to compare fruit yields, phenolic profiles and antioxidant activity of jujube in response to different fertilizers. Application of organic fertilizer appeared to enhance the phenolics and antioxidant activity accumulation of jujubes, compared to conventional fertilized jujubes. Amongst inorganic fertilizers, supplemental potassium as an individual nutrient improved the accumulation of phenolics in jujubes. Our results demonstrate that phenolics levels and antioxidant activity of jujube can be manipulated through fertilizer management and tracked by following proanthocyanidin concentrations. In a practical …
Selection And Budding Propagation Of Native Bigtooth Maple For Water Conserving Landscapes, Melody Reed Richards, Larry A. Rupp, Roger Kjelgren, V. Philip Rasmussen
Selection And Budding Propagation Of Native Bigtooth Maple For Water Conserving Landscapes, Melody Reed Richards, Larry A. Rupp, Roger Kjelgren, V. Philip Rasmussen
Plants, Soils, and Climate Faculty Publications
The potential of bigtooth maple (Acer grandidentatum) as a small, water-conserving landscape tree for the western United States is limited by the selection of superior accessions from a morphologically diverse gene pool and the ability to propagate wild plants in a nursery environment. Superior accessions were selected based primarily on red fall color. Aerial digital images taken during peak fall color in 2007 and 2008 were synchronized with flight global positioning system (GPS) track files using digital image editor software and visually compared with corresponding satellite images to determine the exact latitude and longitude of selected trees on the ground. …
Morphological And Genetic Variation Among Four High Desert Sphaeralcea Species, Chalita Sriladda, Heidi A. Kratsch, Steven R. Larson, Roger Kjelgren
Morphological And Genetic Variation Among Four High Desert Sphaeralcea Species, Chalita Sriladda, Heidi A. Kratsch, Steven R. Larson, Roger Kjelgren
Plants, Soils, and Climate Faculty Publications
he herbaceous perennial species in the genus Sphaeralcea have desirable drought tolerance and aesthetics with potential for low-water use landscapes in the Intermountain West. However, taxonomy of these species is ambiguous, which leads to decreased consumer confidence in the native plant nursery industry. The goal of this study was to test and clarify morphological and genetic differentiation among four putative Sphaeralcea species. Morphological characteristics of the type specimens were used as species references in canonical variate analysis to generate a classification model. This model was then used to assign putative species names to herbarium voucher specimens and to field-collected voucher …
Globally Engaging American Agriculture And Natural Resource Students Through Service Learning Study Abroad, Roger Kjelgren, David Hole, Paul Johnson
Globally Engaging American Agriculture And Natural Resource Students Through Service Learning Study Abroad, Roger Kjelgren, David Hole, Paul Johnson
Plants, Soils, and Climate Faculty Publications
Multi-national scientific collaboration to address future biodiversity, food security, and climate change issues will require cultural intelligence and global navigation skills by future U.S. agricultural and natural resource (Ag-NR) scientists. However, undergraduate study abroad opportunities are largely absent for U.S. Ag-NR students, particularly in developing countries. In parallel, universities in non Anglophone countries, many in Asia, are seeking to building scientific capacity through graduate study abroad at institutions in the U.S. and publishing in the Englis-language international scientific literature. However, English speaking and listening skills of many such students are limited, a hinder to passing English proficiency exams required for …
Water Efficient Urban Landscapes-Integrating Different Water Use Categorizations And Plant Types, Hongyan Sun, Kelly L. Kopp, Roger Kielgren
Water Efficient Urban Landscapes-Integrating Different Water Use Categorizations And Plant Types, Hongyan Sun, Kelly L. Kopp, Roger Kielgren
Plants, Soils, and Climate Faculty Publications
Little research has examined water requirements of entire irrigated urban landscapes integrating different types of plants. Three landscape treatments integrating different types of plants—woody, herbaceous perennial, turf—and putative water use classifications—mesic, mixed, xeric—were grown in large drainage lysimeters. Each landscape plot was divided into woody plant, turf, and perennial hydrozones and irrigated for optimum water status over 2 years and water use measured using a water balance approach. For woody plants and herbaceous perennials, canopy cover rather than plant type or water use classification was the key determinant of water use relative to reference evapotranspiration (ETo) under well-watered conditions. For …
Water Efficient Urban Landscapes - Integrating Different Water Use Categorizations And Plant Types, Hongyan Sun, Kelly Kopp, Roger Kjelgren
Water Efficient Urban Landscapes - Integrating Different Water Use Categorizations And Plant Types, Hongyan Sun, Kelly Kopp, Roger Kjelgren
Plants, Soils, and Climate Faculty Publications
Little research has examined water requirements of entire irrigated urban landscapes integrating different types of plants. Three landscape treatments integrating different types of plants—woody, herbaceous perennial, turf—and putative water use classifications—mesic, mixed, xeric—were grown in large drainage lysimeters. Each landscape plot was divided into woody plant, turf, and perennial hydrozones and irrigated for optimum water status over 2 years and water use measured using a water balance approach. For woody plants and herbaceous perennials, canopy cover rather than plant type or water use classification was the key determinant of water use relative to reference evapotranspiration (ETo) under well-watered conditions. For …
Physiological Responses Of Turfgrass Species To Drought Stress Under High Desert Conditions, Nisa Leksungnoen, Paul Johnson, Roger Kjelgren
Physiological Responses Of Turfgrass Species To Drought Stress Under High Desert Conditions, Nisa Leksungnoen, Paul Johnson, Roger Kjelgren
Plants, Soils, and Climate Faculty Publications
Broad concerns over water shortages and drought where irrigated urban landscapes are common in high desert regions have focused attention on drought tolerance of turfgrass species. We investigated the physiological responses of kentucky bluegrass (KBG) and tall fescue (TF) under a prolonged drought under high desert conditions. The experimental design was a split plot with three replicates. Two irrigation treatments as a whole plot—well-watered and no water—were applied to subplots of ‘Midnight’ KBG and ‘Gazelle’ TF. Stomatal conductance (gS), canopy temperature, and predawn leaf water potential were measured over two seasons. KBG gS and leaf water potential decreased faster and …
Tropical Street Trees And Climate Uncertainty In Southeast Asia, Roger Kjelgren, Yongyut Trisurat, Ladawan Puangchit, Nestor Baguinon, Puay Tan Yok
Tropical Street Trees And Climate Uncertainty In Southeast Asia, Roger Kjelgren, Yongyut Trisurat, Ladawan Puangchit, Nestor Baguinon, Puay Tan Yok
Plants, Soils, and Climate Faculty Publications
Urban trees are a critical quality of life element in rapidly growing cities in tropical climates. Tropical trees are found in a wide variety of habitats governed largely by the presence and duration of monsoonal dry periods. Tropical cities can serve as a proxy for climate change impacts of elevated carbon dioxide (CO2), urban heat island, and drought-prone root zones on successful urban trees. Understanding the native habitats of species successful as tropical urban trees can yield insights into the potential climate impact on those habitats. Species from equatorial and montane wet forests where drought stress is not a limiting …
Value Landscape Engineering Web-Based Tool, David Rosenberg, Kelly L. Kopp, Heidi Kratsch, Roger Kjelgren, Larry Rupp, Paul Johnson
Value Landscape Engineering Web-Based Tool, David Rosenberg, Kelly L. Kopp, Heidi Kratsch, Roger Kjelgren, Larry Rupp, Paul Johnson
Plants, Soils, and Climate Faculty Publications
A tool to help both landscape professionals and consumers make informed decisions about choices in landscape design and maintenance
Water Deficit Stress Responses Of Three Herbaceous Native Australian Ornamental Species, Roger Kjelgren, Lixue Wang, Daryl Joyce
Water Deficit Stress Responses Of Three Herbaceous Native Australian Ornamental Species, Roger Kjelgren, Lixue Wang, Daryl Joyce
Plants, Soils, and Climate Faculty Publications
Perennial wildflower species are important but not well-understood elements in water-wise landscaping that anchors urban water conservation programs in arid climates. Comparative growth and physiological responses to soil substrate drying of three herbaceous Australian ornamental species from habitats of variable moisture regimes were investigated in the context of isohydric and anisohydric behavior. Clonal Orthosiphon aristatus, Dianella revoluta ‘Breeze’, and Ptilotus nobilis plants were container-grown individually and competitively together in two separate studies. In both studies, plants were water-stressed through cyclical dry downs. We measured stomatal conductance (g S), soil water content, and water potential during each study and osmotic adjustment …
Tools For Evaluating Native Grasses As Low Maintenance Turf, Landon D. Bunderson, Paul G. Johnson, Kelly L. Kopp, Adam Van Dyke
Tools For Evaluating Native Grasses As Low Maintenance Turf, Landon D. Bunderson, Paul G. Johnson, Kelly L. Kopp, Adam Van Dyke
Plants, Soils, and Climate Faculty Publications
Visual ratings are the standard for evaluating turfgrass quality. However, to provide more objective evaluations and to address statistical concerns, other methods have been developed to measure turfgrass quality, including digital image analysis and measurements of chlorophyll content. These have been largely applied to traditionally used turfgrass species, but here we used these methods to evaluate turfgrass quality of nontraditional species and mixtures that are native or adapted to the intermountain west region of North America. Two fertilizer treatments (1.0 or 2.0 lb/1000 ft2 nitrogen) were applied to 21 different species and species mixtures in North Logan, UT. These plots …
Water-Conserving Landscapes: An Evaluation Of Homeowner Preference, Tony A. Mccammon, Sandra T. Marquardt-Pyatt, Kelly L. Kopp
Water-Conserving Landscapes: An Evaluation Of Homeowner Preference, Tony A. Mccammon, Sandra T. Marquardt-Pyatt, Kelly L. Kopp
Plants, Soils, and Climate Faculty Publications
Landscape preferences were assessed for three identically designed Xeriscapes™, differing only in the plant material, under both well-watered and drought conditions. The classes of plant material included traditional (high water use), intermediate (moderate water use), and native/adapted plant species of the Intermountain West (low water use). Landscapes were subjected to a 5-week dry-down period. Under drought conditions, respondents preferred drought/adapted and intermediate landscapes to traditional landscapes. A focus on Xeriscape™ education, practices, and visual exposure may result in greater adoption of Xeriscape™ practices by homeowners and may also result in significant residential water savings.
Landscaping On The New Frontier: Waterwise Design For The Intermountain West, Susen E. Meyer, Roger Kjelgren, Darrel G. Morrison, William A. Varga
Landscaping On The New Frontier: Waterwise Design For The Intermountain West, Susen E. Meyer, Roger Kjelgren, Darrel G. Morrison, William A. Varga
Plants, Soils, and Climate Faculty Publications
A practical volume for the home or business owner on landscaping with native, drought-tolerant plants in the Rocky Mountain West. Filled with color illustrations, photos, and design sketches, over 100 native species are described, while practical tips on landscape design, water-wise irrigation, and keeping down the weeds are provided. In this book you will learn how to use natural landscapes to inspire your own designed landscape--around your business or home and yard. Included are design principles, practical ideas, and strong examples of what some homeowners have already done to convert traditional "bluegrass" landscapes into ones that are more expressive of …
Water Use Of Four Street Tree Species In Bangkok, Thailand, Roger Kjelgren, Ladawan Puangchit, Chalita Sriladda, Montathip Someechai
Water Use Of Four Street Tree Species In Bangkok, Thailand, Roger Kjelgren, Ladawan Puangchit, Chalita Sriladda, Montathip Someechai
Plants, Soils, and Climate Faculty Publications
Water use of four selected tree species commonly used on Bangkok streets under well-watered conditions was investigated in two studies during the mid and late periods of the characteristic monsoonal dry season. Field grown trees of Cassia fistula, Pterocarpus indicus, Lagerstroemia loudonii, and Swietenia macrophylla, were harvested as per local nursery practices, potted into 20 L containers with organic media and allowed to establish for three weeks prior to each study. Tree water use was measured gravimetrically during the cooler mid monsoonal dry period in late January, and again during the hotter late monsoonal period in late March, concurrent with …
Evaluation Of Competition Between Tress And Turfgrass In The Landscape: Comparison Of Rooting Dynamics, Christopher Hendrickson, Kelly L. Kopp, Heidi Kratsch
Evaluation Of Competition Between Tress And Turfgrass In The Landscape: Comparison Of Rooting Dynamics, Christopher Hendrickson, Kelly L. Kopp, Heidi Kratsch
Plants, Soils, and Climate Faculty Publications
No abstract provided.
Relative Salinity Tolerance Of Intermountain Western United States Native Herbaceous Perennials, Nickolee Zollinger, Richard Koenig, Teresa Cerny-Koenig, Roger Kjelgren
Relative Salinity Tolerance Of Intermountain Western United States Native Herbaceous Perennials, Nickolee Zollinger, Richard Koenig, Teresa Cerny-Koenig, Roger Kjelgren
Plants, Soils, and Climate Faculty Publications
The authors investigated salinity tolerance of four intermountain western United States native (Penstemon palmeri, Mirabilis multiflora, Geranium viscosissimum, and Eriogonum jamesii) and four common (Echinacea purpurea, Lavandula angustifolia, Leucanthemum ×superbum ‘Alaska’, and ×Penstemon mexicali ‘Red Rocks’) ornamental herbaceous perennials. Each was irrigated with a solution containing 2 CaCl2 : 1 NaCl (M ratio) at salinity levels of 0 (control), 1000, 3000, and 5000 mg·L−1 during two 8-week experiments. They measured weekly visual quality and gas exchange and final shoot and root dry weights. Mirabilis multiflora, L. ×superbum, and L. angustifolia maintained high visual quality and 100% survival across salinity levels. …
Characterizing Fertilizer And Media Ph Requirements For Greenhouse Production Of Intermountain West Native Herbaceous Perennials, Guillermo Cardoso, Teresa Cerny-Koenig, Richard Koenig, Roger Kjelgren
Characterizing Fertilizer And Media Ph Requirements For Greenhouse Production Of Intermountain West Native Herbaceous Perennials, Guillermo Cardoso, Teresa Cerny-Koenig, Richard Koenig, Roger Kjelgren
Plants, Soils, and Climate Faculty Publications
Colorado blue columbine (Aquilegia caerulea James [Ranunculaceae]), Palmer’s penstemon (Penstemon palmeri Gray [Scrophulariaceae]), and Russian sage (Perovskia atriplicifolia Benth. [Lamiaceae]) were treated with 5 rates of a standard water-soluble fertilizer (0, 50, 100, 200, 400 mg/l [ppm] nitrogen [N]) to determine the optimum concentration for the production of plants in greenhouse containers. Plant quality and shoot dry matter increased while root:shoot dry matter decreased linearly with fertilizer concentration up to 200 ppm N for all species in a spring trial. Responses to fertilizer concentrations up to 400 ppm were less consistent in a fall trial. The response of gooseberryleaf globemallow …
Educating Large Landscape Water Users, Kelly L. Kopp, Teresa Cerny-Koenig, Rachel Lopez
Educating Large Landscape Water Users, Kelly L. Kopp, Teresa Cerny-Koenig, Rachel Lopez
Plants, Soils, and Climate Faculty Publications
A workshop series for large water users in the highly populated, urban areas of Utah was developed at the request of several water agencies. The series of full-day workshops covered irrigation maintenance and scheduling, managing plants during drought conditions, irrigation auditing, and a field exercise to determine irrigation uniformity. A written survey and evaluation was distributed at the end of each of the workshops and collected from each participant. Responses to the surveys in 2003 and 2005 were compared to determine program effectiveness.
Agricultural Experiment Station Faculty And Administrator Attitudes And Perceptions Regarding Placing Research Results On The Internet, Roger Kjelgren
Agricultural Experiment Station Faculty And Administrator Attitudes And Perceptions Regarding Placing Research Results On The Internet, Roger Kjelgren
Plants, Soils, and Climate Faculty Publications
I investigated perceptions of Agricultural Experiment Station (AES)-supported faculty and administrators regarding faculty involvement in placing AES-supported research on the World Wide Web (Web). Four populations were surveyed with a Web-based survey: all AES-supported faculty at Utah State University; AES-supported faculty in distinct horticulture departments at land-grant universities; AES state directors; and department heads/chairs in AES-supported horticulture departments. The survey queried the merits of placing research results on the Web and the degree of institutional support and actual faculty involvement in this process. All four groups agreed that placing AES-supported research results online was important and that faculty will need …
Effects Of Irrigation And Mowing On Species Diversity Of Grass And Wildflower Mixtures For The Intermountain West, Daniel W. Dewey, Paul G. Johnson, Roger Kjelgren
Effects Of Irrigation And Mowing On Species Diversity Of Grass And Wildflower Mixtures For The Intermountain West, Daniel W. Dewey, Paul G. Johnson, Roger Kjelgren
Plants, Soils, and Climate Faculty Publications
Grass and wildflower mixtures can be aesthetically appealing, water-conserving, low-maintenance alternatives to conventional turfgrass. One problem with these mixtures is loss of species diversity over time. We examined the effects of irrigation and mowing on the species diversity of 3 grass and wild-flower mixtures. The nonirrigated and non-mowed treatment combination maintained diversity most effectively whereas the irrigated and mowed treatment combination was least effective. Generally, when the irrigation treatment was significant (P < 0.05), irrigated plots contained more wildflowers. When the mowing treatment was significant (P < 0.05), mowed plots contained more common yarrow (Achillea millefolium L. [Asteraceae]) and strawberry clover (Trifolium fragiferum L. [Fabaceae]) and fewer Pacific aster (Symphyotrichum chilense (Nees) Nesom [Asteraceae]). Height measurements on non-mowed plots showed that irrigated plots had taller canopies than nonirrigated plots. Common yarrow was the most competitive wildflower, followed by strawberry clover and Pacific aster. Mixture 3 containing crested wheatgrass (Agropyron cristatum (L.) Gaertn. [Poaceae]) and thickspike wheatgrass (Elymus lanceolatus (Scribn. & J.G. Sm.) Gould ssp. lanceolatus [Poaceae]) maintained species diversity for the longest duration under nonirrigated and non-mowed conditions.
Stewardship And The Concept Of Yield In Landscape Water Conservation, Larry A. Rupp, Roger Kjelgren
Stewardship And The Concept Of Yield In Landscape Water Conservation, Larry A. Rupp, Roger Kjelgren
Plants, Soils, and Climate Faculty Publications
Growing up in what was rural Salt Lake County, my peers and I never knew a time when questions of water did not flow through our lives as surely as it flowed through the canals and irrigation ditches. We played in the flood of water pumped from the ditch onto our lawn, and we floated homemade rafts down the canal in the heat of the summer. We listened in amazement to descriptions of how the canals were built and wondered when we would be big enough to be asked to join the cooperative crew that skimmed the ditches in the …
Growth And Water Relations Of Littleleaf Linden Trees Established In Irrigated Buffalograss And Kentucky Bluegrass, J. Ryan Stewart, Roger Kjelgren, Paul G. Johnson, Michael R. Kuhns
Growth And Water Relations Of Littleleaf Linden Trees Established In Irrigated Buffalograss And Kentucky Bluegrass, J. Ryan Stewart, Roger Kjelgren, Paul G. Johnson, Michael R. Kuhns
Plants, Soils, and Climate Faculty Publications
Although transplanted trees typically establish and grow without incident in frequently irrigated turfgrass, their performance in precisely irrigated turfgrass in an arid climate is not known. We investigated the effect of precision irrigation scheduling on growth and water relations of balled-and-burlapped littleleaf linden (Tilia cordata Mill. `Greenspire') planted in buffalograss (Buchloë dactyloides [Nutt.] Engelm. `Tatanka') and kentucky bluegrass (Poa pratensis L.). Over 2 years, trees in turfgrass were irrigated either by frequent replacement based on local reference evapotranspiration, or precision irrigated by estimating depletion of soil water to the point of incipient water stress for each turfgrass species. Predawn leaf …
Drought Responses Of Ornamental Herbaceous Perennials, Nickolee Zollinger, Roger Kjelgren, Teresa Cerny-Koenig, Rich Koenig, Kelly L. Kopp
Drought Responses Of Ornamental Herbaceous Perennials, Nickolee Zollinger, Roger Kjelgren, Teresa Cerny-Koenig, Rich Koenig, Kelly L. Kopp
Plants, Soils, and Climate Faculty Publications
No abstract provided.
Salinity Tolerance Of Eight Ornamental Herbaceous Perennials, Nickolee Zollinger, Teresa Cerny-Koenig, Roger Kjelgren, Rich Koenig, Kelly L. Kopp
Salinity Tolerance Of Eight Ornamental Herbaceous Perennials, Nickolee Zollinger, Teresa Cerny-Koenig, Roger Kjelgren, Rich Koenig, Kelly L. Kopp
Plants, Soils, and Climate Faculty Publications
No abstract provided.
Soil-Water-Use Characteristics Of Precision-Irrigated Buffalograss And Kentucky Bluegrass, J. Ryan Stewart, Roger Kjelgren, Paul G. Johnson, Michael R. Kuhns
Soil-Water-Use Characteristics Of Precision-Irrigated Buffalograss And Kentucky Bluegrass, J. Ryan Stewart, Roger Kjelgren, Paul G. Johnson, Michael R. Kuhns
Plants, Soils, and Climate Faculty Publications
As landscape water conservation becomes more important in the American West, pubic interest in using low water-use turfgrasses is increasing. Little is known about soil water extraction characteristics that contribute to low water use. We investigated how buffalograss (Buchloë dactyloides (Nutt.) Engelm) and Kentucky bluegrass (Poa pratensis L.), considered to be low and high water-use species, respectively, extract soil water in terms of rooting depth and use of available water. Leaf canopy temperature, air temperature, and vapor pressure deficit (VPD) were measured, and a relationship developed between leaf canopy temperature minus air temperature (TL-TA) and VPD for each species under …
How To Retain Nutrients On Calcareous Sand Greens, Paul G. Johnson, Rich Koenig, Kelly L. Kopp
How To Retain Nutrients On Calcareous Sand Greens, Paul G. Johnson, Rich Koenig, Kelly L. Kopp
Plants, Soils, and Climate Faculty Publications
No abstract provided.
Water Use And Stomatal Behavior Of Sweetgum (Liquidambar Styraciflua L.) Relative To Reference Evaporation In Three Contrasting Regions, Roger Kjelgren, Thayne Montague, Richard Beeson
Water Use And Stomatal Behavior Of Sweetgum (Liquidambar Styraciflua L.) Relative To Reference Evaporation In Three Contrasting Regions, Roger Kjelgren, Thayne Montague, Richard Beeson
Plants, Soils, and Climate Faculty Publications
We investigated water use and a water needs index multiplier relative to reference evapotranspiration (ETo) for a sweetgum cultivar (Liquidambar styraciflua L. ‘Moraine’) in three different regions of the US: semi-arid (Logan, Utah), semi-humid (Lubbock, Texas), and humid (Orlando, Florida). Three individual field-grown trees, approximately 80 mm trunk diameter, were potted in to large containers with organic media at each location. Sweetgum water use (Tsw) was then measured over the season at each location with load cells connected to data-loggers, concurrent with measurement of ETo from adjacent weather stations. Dawn-to-dusk stomatal conductance (Gs) was measured several times during the season …
Species Composition Changes In A Rooftop Grass And Wildflower Meadow: Implication For Designing Successful Mixtures, Daniel W. Dewey, Paul G. Johnson, Roger Kjelgren
Species Composition Changes In A Rooftop Grass And Wildflower Meadow: Implication For Designing Successful Mixtures, Daniel W. Dewey, Paul G. Johnson, Roger Kjelgren
Plants, Soils, and Climate Faculty Publications
Based on our observations of a grass and wildflower meadow growing in 7 radiation zones on the roof of The Church of Jesus Christ of Latter-day Saints Conference Center in Salt Lake City, Utah, we identified 21 species that should be considered for future grass/wildflower mixture studies. We also found a single wildflower species and 1 grass species that were too aggressive for mixtures, and 4 wildflower species and 3 species of grass that were not aggressive enough. Mixtures of grasses and wildflowers can be aesthetically appealing, water-conserving, low-maintenance alternatives to conventional turfgrass.
Educating Large, Urban Landscape Water Users, Kelly L. Kopp, Teresa Cerny, Roger Kjelgren
Educating Large, Urban Landscape Water Users, Kelly L. Kopp, Teresa Cerny, Roger Kjelgren
Plants, Soils, and Climate Faculty Publications
No abstract provided.