Featured Research

from universities, journals, and other organizations

Rose torture: Severe heat in Texas yields better varieties for research

Date:
December 13, 2011
Source:
Texas A&M AgriLife Communications
Summary:
At least one person admits that the extreme heat in Texas this year was beneficial. But all the same, he'd opt next time for a handmade torture chamber. "Some people will complain about the heat, but from my viewpoint as a breeder, I love stress," said a rose breeder.

At least one person admits that the extreme heat in Texas this year was beneficial. But all the same, he'd opt next time for a handmade torture chamber.

"Some people will complain about the heat, but from my viewpoint as a breeder, I love stress," said Dr. David Byrne, Texas AgriLife Research rose breeder.

With maximum mean highs of 107 degrees for weeks near Mansfield and 104 at College Station, where Byrne has research plots, numerous rose varieties were put to one of Mother Nature's extreme tests.

"Mother Nature is wonderful but not always steady. Right now we're conjuring up plans to make a 'torture test' for roses where we put them in a box with a certain temperature, leave them there 2-3 weeks, then bring them out and see what their response is," Byrne said.

For now, however, the wacky weather has benefited his research.

"This disastrous summer for most was really a godsend to me because, with the temperatures we had, I could distinguish between roses that could grow and flower well in the heat and those that didn't," he said. "There are some that I thought were very good last year that looked horrible this year.

"I looked at the roses in August during the weeks of extreme heat, and there were a lot of plants that looked like they were about to die they were in such stress," he noted. "They looked like very crummy plants."

He said the plants were watered regularly and received proper nutrition. But with the extreme heat, the plants did not grow and thus there were no flowers.

"Whereas others in the same plots, you wouldn't know they were in the heat. They had lots of flowers and lots of good growth. There was really a big difference between these two extremes which was just wonderful for us," Byrne said.

Many of the plants that handled the heat well were from lines Byrne has been breeding for four rose generations, or about 10 years.

"We know they are black spot tolerant, and were hoping they were heat tolerant," he said. "So now we have some lines that have both traits at high levels which is good."

But even though this summer helped the researcher make better plant selections, extreme heat is not on anyone's annual wish list, he said. Yet, research requires consistent, repeated evaluations -- being able to put consistent conditions on the plants, in this case, year after year. That's where the handmade heat chamber will be useful.

"That will put them through a stress test and help us be able to select the better ones to confirm in field tests. We hope this helps us go through them earlier so we have a better sense of which ones will do well and which ones won't," he said.

Byrne said research now can focus on achieving a range of colors with heat- and black spot-tolerance, because the successful plants noted in this year's trials basically produce an abundance of white, single flowers.

"We're using these heat tolerant plants in our crossing program to get black spot resistance, wonderful flower color and great flower intensity with respect to the number of flowers per bush," Byrne said. "They'll basically be carefree roses in a range of sizes."

Byrne will continue to evaluate plants that survived the Texas 2011 summer and select some of them for further testing with commercial partners. In his research, about 20,000 seed a year is produced, planted and evaluated every year.


Story Source:

The above story is based on materials provided by Texas A&M AgriLife Communications. The original article was written by Kathleen Phillips. Note: Materials may be edited for content and length.


Cite This Page:

Texas A&M AgriLife Communications. "Rose torture: Severe heat in Texas yields better varieties for research." ScienceDaily. ScienceDaily, 13 December 2011. <www.sciencedaily.com/releases/2011/12/111212153159.htm>.
Texas A&M AgriLife Communications. (2011, December 13). Rose torture: Severe heat in Texas yields better varieties for research. ScienceDaily. Retrieved August 2, 2014 from www.sciencedaily.com/releases/2011/12/111212153159.htm
Texas A&M AgriLife Communications. "Rose torture: Severe heat in Texas yields better varieties for research." ScienceDaily. www.sciencedaily.com/releases/2011/12/111212153159.htm (accessed August 2, 2014).

Share This




More Earth & Climate News

Saturday, August 2, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Pyrenees Orphan Bear Cub Gets Brand New Home

Pyrenees Orphan Bear Cub Gets Brand New Home

AFP (Aug. 1, 2014) — The discovery of a bear cub in the Pyrenees mountains made headlines in April 2014. Despire several attempts to find the animal's mother, the cub remained alone. Now, the Pyrenees Conservation Foundation has constructed an enclosure. Duration: 00:31 Video provided by AFP
Powered by NewsLook.com
Rare Whale Fossil Pulled from Calif. Backyard

Rare Whale Fossil Pulled from Calif. Backyard

AP (Aug. 1, 2014) — A rare whale fossil has been pulled from a Southern California backyard. The 16- to 17-million-year-old baleen whale fossil is one of about 20 baleen whale fossils known to exist. (Aug. 1) Video provided by AP
Powered by NewsLook.com
Greenpeace Ship Arctic Sunrise Free to Leave Russia

Greenpeace Ship Arctic Sunrise Free to Leave Russia

AFP (Aug. 1, 2014) — Greenpeace's ship Arctic Sunrise, held in custody by the Russian authorities since September last year, has departed the Russian city of Murmansk en route for its home port of Amsterdam. Duration: 01:04 Video provided by AFP
Powered by NewsLook.com
Visitors Feel Part of the Pack at Wolf Preserve

Visitors Feel Part of the Pack at Wolf Preserve

AP (July 31, 2014) — Seacrest Wolf Preserve on the northern Florida panhandle allows more than 10,000 visitors each year to get up close and personal with Arctic and British Columbian Wolves. (July 31) Video provided by AP
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