نتایج جستجو برای: rudbeckia
تعداد نتایج: 122 فیلتر نتایج به سال:
Resource concentration effects occur when high resource density patches attract and support more foragers than low density patches. In contrast, resource dilution effects can occur if high density patches support fewer consumers. In this study, we examined the foraging rates of pollinators and seed predators on two perennial plant species (Rudbeckia triloba and Verbena stricta) as functions of ...
The goal of this study was to investigate the potential for atmospheric Hg degrees uptake by grassland species as a function of different air and soil Hg exposures, and to specifically test how increasing atmospheric CO(2) concentrations may influence foliar Hg concentrations. Four common tallgrass prairie species were germinated and grown for 7 months in environmentally controlled chambers usi...
Disc Replacement adjacent to previous cervical fusion: A Biomechanical Comparison of Hybrid Construct vs. Two-Level Fusion Michael Lee1, Mark Dumonski1, Frank M. Phillips1, Leonard Voronov2,3, Susan Renner2, Gerard Carandang2, Robert Havey2,3, Avinash Patwardhan2,3 1Orthopaedic Surgery, Rush University Medical Center, Chicago, IL; 2Edward Hines VA Medical Center, Hines, IL; 3Loyola University M...
Many vigorous herbaceous perennials need early growth regulation. Treatment at the plug stage could improve early growth control or maintain product size in the plug tray. Concise (uniconazole, Fine Americas, Inc.), is a growth regulator labeled for use on ornamental greenhouse crops in the US. We treated plugs of five herbaceous perennials with a 2-minute dip into 0, 1, 2, 3, 4 or 5 mg/L Conci...
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