Researchers Bradley Park, T.J. Lawson, Hiranthi Samaranayake, and James A. Murphy, from Rutgers University Center for Turfgrass Science, reported their findings in the July/August 2010 edition of Crop Science, published by the Crop Science Society of America.
The researchers attributed the better spring performance of Kentucky bluegrass to greater shoot biomass production during spring, an annual growth cycle phenomenon of cool-season turfgrass.
Twenty-two Kentucky bluegrass varieties were tested using a paddling device developed at Rutgers University during six week periods in spring, summer, and fall.
A variety called ‘Julia’ had the greatest wear tolerance and recovery throughout the study and has previously exhibited a high level of performance in traffic stress trials at Rutgers and other universities. Unfortunately, its susceptibility to various turfgrass diseases caused by fungal pathogens limit its use on sports fields.
Several varieties frequently used in blends established for sod production, classified as Compact-Midnight Types, including ‘Midnight’, ‘Midnight II’, and ‘Liberator’, were tested. While these exhibited good wear tolerance during fall, their recovery in the following spring was slow. Slow spring recovery of these cultivars is due to long winter dormancy and late spring green-up.
‘Cabernet’, ‘Lakeshore’, ‘Moon Shadow’, ‘Limousine’, and ‘Jefferson’ varieties exhibited better recovery from fall wear during the next spring. Better winter performance and early spring green-up likely aided in the spring recovery of these cultivars after wear during the previous fall. These cultivars would be useful on sports fields needing recovery from fall use and should probably be included in blends with Compact-Midnight Type cultivars.
The ‘Langara’, ‘Bedazzled’, and ‘Touchdown’ varieties had poor wear tolerance and recovery during all seasons. The researchers concluded that these cultivars are better suited to sports fields that see low use intensities.
The research team at Rutgers University continues to investigate the effects of seasonal wear on Kentucky bluegrass. Results provide sod growers, sports field managers, and other turf professionals valuable information to aid in cultivar selection for use on sports and recreational surfaces. For example, the authors concluded that screening varieties for tolerance to wear should be done in the spring.
The full article is available for no charge for 30 days following the date of this summary. View the abstract at https://www.agronomy.org/publications/cs/abstracts/50/4/1526.
Crop Science is the flagship journal of the Crop Science Society of America. Original research is peer-reviewed and published in this highly cited journal. It also contains invited review and interpretation articles and perspectives that offer insight and commentary on recent advances in crop science. For more information, visit www.crops.org/publications/cs
The Crop Science Society of America (CSSA), founded in 1955, is an international scientific society comprised of 6,000+ members with its headquarters in Madison, WI. Members advance the discipline of crop science by acquiring and disseminating information about crop breeding and genetics; crop physiology; crop ecology, management, and quality; seed physiology, production, and technology; turfgrass science; forage and grazinglands; genomics, molecular genetics, and biotechnology; and biomedical and enhanced plants.
CSSA fosters the transfer of knowledge through an array of programs and services, including publications, meetings, career services, and science policy initiatives. For more information, visit www.crops.org
Faba fix for corn's nitrogen need
11.04.2018 | American Society of Agronomy
Wheat research discovery yields genetic secrets that could shape future crops
09.04.2018 | John Innes Centre
Physicists at the Laboratory for Attosecond Physics, which is jointly run by Ludwig-Maximilians-Universität and the Max Planck Institute of Quantum Optics, have developed a high-power laser system that generates ultrashort pulses of light covering a large share of the mid-infrared spectrum. The researchers envisage a wide range of applications for the technology – in the early diagnosis of cancer, for instance.
Molecules are the building blocks of life. Like all other organisms, we are made of them. They control our biorhythm, and they can also reflect our state of...
University of Connecticut researchers have created a biodegradable composite made of silk fibers that can be used to repair broken load-bearing bones without the complications sometimes presented by other materials.
Repairing major load-bearing bones such as those in the leg can be a long and uncomfortable process.
Study published in the journal ACS Applied Materials & Interfaces is the outcome of an international effort that included teams from Dresden and Berlin in Germany, and the US.
Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) together with colleagues from the Helmholtz-Zentrum Berlin (HZB) and the University of Virginia...
Novel highly efficient and brilliant gamma-ray source: Based on model calculations, physicists of the Max PIanck Institute for Nuclear Physics in Heidelberg propose a novel method for an efficient high-brilliance gamma-ray source. A giant collimated gamma-ray pulse is generated from the interaction of a dense ultra-relativistic electron beam with a thin solid conductor. Energetic gamma-rays are copiously produced as the electron beam splits into filaments while propagating across the conductor. The resulting gamma-ray energy and flux enable novel experiments in nuclear and fundamental physics.
The typical wavelength of light interacting with an object of the microcosm scales with the size of this object. For atoms, this ranges from visible light to...
Stable joint cartilage can be produced from adult stem cells originating from bone marrow. This is made possible by inducing specific molecular processes occurring during embryonic cartilage formation, as researchers from the University and University Hospital of Basel report in the scientific journal PNAS.
Certain mesenchymal stem/stromal cells from the bone marrow of adults are considered extremely promising for skeletal tissue regeneration. These adult stem...
13.04.2018 | Event News
12.04.2018 | Event News
09.04.2018 | Event News
23.04.2018 | Physics and Astronomy
23.04.2018 | Physics and Astronomy
23.04.2018 | Trade Fair News