Featured Research

from universities, journals, and other organizations

Breeding Heat Tolerant Beans To Withstand Warmer World

Date:
November 30, 2007
Source:
US Department of Agriculture
Summary:
Dry common beans--favorites like pinto, kidney, navy, red, black and snap--are grown mostly in the north-central and western regions of the United States. With looming climate change breeding heat-tolerant varieties is important for our future.

Geneticist Tim Porch examines the effects of high-temperature stress on pod development in the common bean.
Credit: Photo by Peggy Greb

Dry common beans—favorites like pinto, kidney, navy, red, black and snap—are grown mostly in the north-central and western regions of the United States. But thousands of miles away, Agricultural Research Service (ARS) geneticist Timothy Porch is working to make good beans even better.

Related Articles


Porch conducts research at the Tropical Agriculture Research Station in Mayagüez, Puerto Rico. He is looking for ways to reduce heat stress in common beans (Phaseolus vulgaris) grown in the continental United States by breeding heat-tolerant varieties.

Most common beans are adapted to relatively cool climates. But in the United States, common beans are cultivated at average temperatures that can exceed 86 degrees Fahrenheit during the day. These hot summers can hinder the reproductive development of bean crops, which in turn results in smaller potential yields.

However, tropical varieties of Phaseolus contain a much greater range of genetic diversity than the types commercially cultivated in the United States, and may carry traits that protect against heat stress. Porch is trying to bolster U.S. beans with high-temperature adaptations and other producer-friendly traits, such as drought tolerance and disease resistance.

In his search to find novel genetic traits, Porch has worked with two major germplasm centers: the International Center for Tropical Agriculture, in Cali, Colombia; and the ARS Western Regional Plant Introduction Station at Pullman, Wash.

Porch's research will support plant breeders' efforts to develop new bean varieties to meet market demands, increase yields and lower consumer costs. Producers will also be better positioned to respond to possible challenges in the future from emerging diseases and climate change.


Story Source:

The above story is based on materials provided by US Department of Agriculture. Note: Materials may be edited for content and length.


Cite This Page:

US Department of Agriculture. "Breeding Heat Tolerant Beans To Withstand Warmer World." ScienceDaily. ScienceDaily, 30 November 2007. <www.sciencedaily.com/releases/2007/11/071126152058.htm>.
US Department of Agriculture. (2007, November 30). Breeding Heat Tolerant Beans To Withstand Warmer World. ScienceDaily. Retrieved October 25, 2014 from www.sciencedaily.com/releases/2007/11/071126152058.htm
US Department of Agriculture. "Breeding Heat Tolerant Beans To Withstand Warmer World." ScienceDaily. www.sciencedaily.com/releases/2007/11/071126152058.htm (accessed October 25, 2014).

Share This



More Plants & Animals News

Saturday, October 25, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Deep Sea 'mushroom' Could Be Early Branch on Tree of Life

Deep Sea 'mushroom' Could Be Early Branch on Tree of Life

Reuters - Innovations Video Online (Oct. 24, 2014) — Miniature deep sea animals discovered off the Australian coast almost three decades ago are puzzling scientists, who say the organisms have proved impossible to categorise. Academics at the Natural History of Denmark have appealed to the world scientific community for help, saying that further information on Dendrogramma enigmatica and Dendrogramma discoides could answer key evolutionary questions. Jim Drury has more. Video provided by Reuters
Powered by NewsLook.com
Black Bear Cub Goes Sunday Shopping

Black Bear Cub Goes Sunday Shopping

Reuters - Light News Video Online (Oct. 23, 2014) — Price check on honey? Bear cub startles Oregon drugstore shoppers. Rough Cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com
Dances With Wolves in China's Wild West

Dances With Wolves in China's Wild West

AFP (Oct. 23, 2014) — One man is on a mission to boost the population of wolves in China's violence-wracked far west. The animal - symbol of the Uighur minority there - is under threat with a massive human resettlement program in the region. Duration: 00:41 Video provided by AFP
Powered by NewsLook.com
Breakfast Debate: To Eat Or Not To Eat?

Breakfast Debate: To Eat Or Not To Eat?

Newsy (Oct. 23, 2014) — Conflicting studies published in the same week re-ignited the debate over whether we should be eating breakfast. 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:

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