Featured Research

from universities, journals, and other organizations

Hybrid Bluegrasses Analyzed For Use In Transition Zone; 'Thermal Blue' And 'Dura Blue' Hybrids Put To The Test

Date:
November 4, 2009
Source:
American Society for Horticultural Science
Summary:
The transition zone can be one of the most challenging places to maintain high-quality turfgrass; changeable growing conditions in these regions often prove too hot or too cold. Finding turfgrass that thrives in these challenging environments can be perplexing for turf management professionals and homeowners alike. Bred for their ability to tolerate heat and drought, two hybrids "Dura Blue" and "Thermal Blue" were found to outperform traditional bluegrasses in transition zone areas.

The transition zone can be one of the most challenging places to maintain high-quality turfgrass; changeable growing conditions in these regions often prove too hot for some grasses and too cold for others. Finding turfgrass that thrives in these challenging environments can be perplexing for turf management professionals and homeowners alike.

Now, an answer to this growing dilemma may be found in new breeds of hybrid bluegrasses. Bred for their ability to tolerate heat and drought, these hybrids can outperform traditional bluegrasses in transition zone areas. A study published in a recent issue of HortScience tested two new bluegrass hybrids, 'Thermal Blue' and 'Dura Blue', to investigate optimal seeding rates, correct seed timing, and the interaction of mowing height and fertility requirements for both bluegrass cultivars. The study results show promise for both hybrids in the transition zone.

Travis C. Teuton, John C. Sorochan, Christopher L. Main, and Thomas C. Mueller from the Plant Sciences Department at The University of Tennessee conducted experiments using 'Thermal Blue' and 'Dura Blue' (both hybrids developed by the Scotts Company, Marysville, Ohio). Both grasses are hybrids of Texas bluegrass and traditional Kentucky bluegrass bred specifically for the heat and drought tolerance of Texas bluegrass and the desirable turfgrass quality of Kentucky bluegrass. The research was performed during 2003, 2004, and 2005 in Knoxville.

According to Teuton, 'Thermal Blue' performed well in seeding trials. "However, the addition of a small percentage of perennial ryegrass or turf-type tall fescue may decrease the time to reach the desired cover and quality and decrease the chance of erosion," he noted. The results also indicated that 'Thermal Blue' can be seeded any time from September to April, allowing adequate time for seed germination and growth before the hot summer months. July seeding in the transition zone is not recommended.

Sorochan concluded that 'Dura Blue' and 'Thermal Blue' are comparable in quality and clipping production; higher mowing heights increase the quality and decrease clippings produced for both grasses at the end of the year. Both hybrids require frequent mowing as a result of their aggressive growth habits, and it was noted that "dethatching will probably be required on a yearly basis".

Irrigation for both grasses will also be required in the transition zone, especially during summer heat stress. The hybrids are susceptible to the disease dollar spot, indicating that fungicide applications are necessary to maintain a high quality turf during the late summer and fall seasons.

The researchers added that further research on disease susceptibility of 'Dura Blue' and 'Thermal Blue', as well as experiments using of grass seed blends to provide more rapid turf cover, would be valuable.


Story Source:

The above story is based on materials provided by American Society for Horticultural Science. Note: Materials may be edited for content and length.


Journal Reference:

  1. Teuton, Travis C., Sorochan, John C., Main, Christopher L., Mueller, Thomas C. Establishment and Maintenance During Establishment of Hybrid Bluegrass (P. arachnifera Torr. x P. pratensis L.) in the Transition Zone. HortScience, 2009; 44: 815-819 [link]

Cite This Page:

American Society for Horticultural Science. "Hybrid Bluegrasses Analyzed For Use In Transition Zone; 'Thermal Blue' And 'Dura Blue' Hybrids Put To The Test." ScienceDaily. ScienceDaily, 4 November 2009. <www.sciencedaily.com/releases/2009/11/091104132814.htm>.
American Society for Horticultural Science. (2009, November 4). Hybrid Bluegrasses Analyzed For Use In Transition Zone; 'Thermal Blue' And 'Dura Blue' Hybrids Put To The Test. ScienceDaily. Retrieved August 29, 2014 from www.sciencedaily.com/releases/2009/11/091104132814.htm
American Society for Horticultural Science. "Hybrid Bluegrasses Analyzed For Use In Transition Zone; 'Thermal Blue' And 'Dura Blue' Hybrids Put To The Test." ScienceDaily. www.sciencedaily.com/releases/2009/11/091104132814.htm (accessed August 29, 2014).

Share This




More Plants & Animals News

Friday, August 29, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Killer Amoeba Found in Louisiana Water System

Killer Amoeba Found in Louisiana Water System

AP (Aug. 28, 2014) State health officials say testing has confirmed the presence of a killer amoeba in a water system serving three St. John the Baptist Parish towns. (Aug. 28) Video provided by AP
Powered by NewsLook.com
Raw: Australian Sheep Gets Long Overdue Haircut

Raw: Australian Sheep Gets Long Overdue Haircut

AP (Aug. 28, 2014) Hoping to break the record for world's wooliest, Shaun the sheep came up 10 pounds shy with his fleece weighing over 50 pounds after being shorn for the first time in years. (Aug. 28) Video provided by AP
Powered by NewsLook.com
Minds Blown: Scientists Develop Fish That Walk On Land

Minds Blown: Scientists Develop Fish That Walk On Land

Newsy (Aug. 28, 2014) Canadian scientists looking into the very first land animals took a fish out of water and forced it to walk. Video provided by Newsy
Powered by NewsLook.com
Huge Ancient Wine Cellar Found In Israel

Huge Ancient Wine Cellar Found In Israel

Newsy (Aug. 28, 2014) An international team uncovered a large ancient wine celler that likely belonged to a Cannonite ruler. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins