Featured Research

from universities, journals, and other organizations

Hardy Oats Stand The Cold

Date:
April 11, 2005
Source:
USDA / Agricultural Research Service
Summary:
Two oat genotypes identified by Agricultural Research Service scientists and cooperators were found to be more freeze-tolerant under controlled field tests than any variety released during the past 65 years.

Agronomist David Livingston screened 10,000 plants from a cross of two hardy oat varieties using progressively lower temperatures to find the toughest lines. Above, Livingston grows winter oat seedlings during an earlier phase of testing.
Credit: Photo by Scott Bauer

Two oat genotypes identified by Agricultural Research Service scientists and cooperators were found to be more freeze-tolerant under controlled field tests than any variety released during the past 65 years.

Plant physiologist David P. Livingston, with the ARS Plant Science Research Laboratory, and plant breeder Paul Murphy at North Carolina State University--both in Raleigh, N.C.--reported the findings in the journal Crop Science.

Among fall-sown grain crops, oats are much less winter hardy than wheat, barley and rye. Sustained temperatures at or below 20 degrees Fahrenheit usually result in yield losses.

The scientists screened lines produced from the cross of two historic U.S. winter oats: Wintok, released in 1940, and Norline, released in 1960.

Starting with 10,000 plants from the two varieties, the researchers used progressively lower temperatures to screen for the toughest lines. Two of the new lines, WN1 and WN10, were more winter-hardy than either of the two hardy cultivars from which they were crossed. Despite their superior freezing tolerance, neither germplasm was late-flowering, a trait commonly linked to freeze tolerance.

The scientists suspect that each of the parent cultivars possessed different alleles for freezing tolerance, and that those alleles were combined into a single genotype. Alleles are natural variations of a particular gene among members of the same species.

These germplasm lines have alleles that allow regenerative cells within the plant crown to sufficiently resist ice and cold. The crown is the area where a plant's root and stem meet, and it contains various compounds that are critical to the plant's regrowth after winter.

Increased winter hardiness among oat varieties could allow farmers as far north as Pennsylvania and Ohio to grow winter oats in the future. The germplasm is being used by breeders to cross with high-yielding, disease-resistant varieties.

ARS is the U.S. Department of Agriculture's chief scientific research agency.


Story Source:

The above story is based on materials provided by USDA / Agricultural Research Service. Note: Materials may be edited for content and length.


Cite This Page:

USDA / Agricultural Research Service. "Hardy Oats Stand The Cold." ScienceDaily. ScienceDaily, 11 April 2005. <www.sciencedaily.com/releases/2005/03/050325184453.htm>.
USDA / Agricultural Research Service. (2005, April 11). Hardy Oats Stand The Cold. ScienceDaily. Retrieved October 1, 2014 from www.sciencedaily.com/releases/2005/03/050325184453.htm
USDA / Agricultural Research Service. "Hardy Oats Stand The Cold." ScienceDaily. www.sciencedaily.com/releases/2005/03/050325184453.htm (accessed October 1, 2014).

Share This



More Plants & Animals News

Wednesday, October 1, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Attacking Superbugs

Attacking Superbugs

Ivanhoe (Oct. 1, 2014) — Two weapons hospitals can use to attack superbugs. Scientists in Ireland created a new gel resistant to superbugs, and a robot that can disinfect a room in minutes. Video provided by Ivanhoe
Powered by NewsLook.com
Cultural Learning In Wild Chimps Observed For The First Time

Cultural Learning In Wild Chimps Observed For The First Time

Newsy (Oct. 1, 2014) — Cultural transmission — the passing of knowledge from one animal to another — has been caught on camera with chimps teaching other chimps. Video provided by Newsy
Powered by NewsLook.com
Earth Has Lost Half Its Vertebrate Wildlife Since 1970: WWF

Earth Has Lost Half Its Vertebrate Wildlife Since 1970: WWF

Newsy (Sep. 30, 2014) — A new study published by the World Wide Fund for Nature found that more than half of the world's wildlife population has declined since 1970. Video provided by Newsy
Powered by NewsLook.com
Annual Dog Surfing Competition Draws California Crowds

Annual Dog Surfing Competition Draws California Crowds

AFP (Sep. 30, 2014) — The best canine surfers gathered for Huntington Beach's annual dog surfing competition, "Surf City, Surf Dog." Duration: 01:15 Video provided by AFP
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:

Strange & Offbeat Stories

 

Plants & Animals

Earth & Climate

Fossils & Ruins

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