Featured Research

from universities, journals, and other organizations

Helping Cotton Thrive In The Heat

Date:
December 7, 2004
Source:
USDA / Agricultural Research Service
Summary:
Cotton grown in the United States comes from areas prone to periods of extremely high temperatures that can have a negative effect on cotton yield. Agricultural Research Service scientists Michael E. Salvucci and Steven J. Crafts-Brandner are developing technology to improve cotton yields in Arizona's extremely hot and dry summer environment.

Plant physiologist Steven J. Crafts-Brandner inspects a cotton plant that will be used in a heat-stress experiment.
Credit: Photo by Peggy Greb. Courtesy of USDA / Agricultural Research Service

Cotton grown in the United States comes from areas prone to periods of extremely high temperatures that can have a negative effect on cotton yield. Agricultural Research Service scientists Michael E. Salvucci and Steven J. Crafts-Brandner are developing technology to improve cotton yields in Arizona's extremely hot and dry summer environment.

The ideal daytime temperature for cotton production is 82 degrees Fahrenheit. The plant also needs an adequate supply of water. In Arizona and other cotton-producing areas, daytime temperatures often exceed 100 degrees F. Plant physiologists Salvucci and Crafts-Brandner have found that high temperatures can adversely affect the function of a plant enzyme called Rubisco activase, resulting in impaired photosynthesis and reduced yields.

At the ARS Western Cotton Research Laboratory in Phoenix, the scientists observed how Rubisco activase from plants adapted to various climates functioned at high temperatures. They discovered that the enzyme from plants adapted to the hot Arizona desert worked much better at high temperatures, compared to the enzyme from plants adapted to cold climates.

The research provides a scientific basis for improving the enzyme in crop plants such as cotton. The team is testing the hypothesis that plants engineered to contain Rubisco activase from a shrub adapted to the hot Arizona desert will perform more efficiently at high temperatures.

If successful, the research could improve the production of cotton in Arizona and across the U.S. Cotton Belt, and perhaps improve the performance of other crops that suffer from high temperatures.


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. "Helping Cotton Thrive In The Heat." ScienceDaily. ScienceDaily, 7 December 2004. <www.sciencedaily.com/releases/2004/11/041122092640.htm>.
USDA / Agricultural Research Service. (2004, December 7). Helping Cotton Thrive In The Heat. ScienceDaily. Retrieved September 18, 2014 from www.sciencedaily.com/releases/2004/11/041122092640.htm
USDA / Agricultural Research Service. "Helping Cotton Thrive In The Heat." ScienceDaily. www.sciencedaily.com/releases/2004/11/041122092640.htm (accessed September 18, 2014).

Share This



More Plants & Animals News

Thursday, September 18, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Chimp Violence Study Renews Debate On Why They Kill

Chimp Violence Study Renews Debate On Why They Kill

Newsy (Sep. 17, 2014) The study weighs in on a debate over whether chimps are naturally violent or become that way due to human interference in the environment. Video provided by Newsy
Powered by NewsLook.com
Some Tobacco Farmers Thrive Amid Challenges

Some Tobacco Farmers Thrive Amid Challenges

AP (Sep. 16, 2014) The South's tobacco country is surviving, and even thriving in some cases, as demand overseas keeps growers in the fields of one of America's oldest cash crops. (Sept. 16) Video provided by AP
Powered by NewsLook.com
Scientists Given Rare Glimpse of 350-Kilo Colossal Squid

Scientists Given Rare Glimpse of 350-Kilo Colossal Squid

AFP (Sep. 16, 2014) Scientists say a female colossal squid weighing an estimated 350 kilograms (770 lbs) and thought to be only the second intact specimen ever found was carrying eggs when discovered in the Antarctic. Duration: 00:47 Video provided by AFP
Powered by NewsLook.com
Raw: Scientists Examine Colossal Squid

Raw: Scientists Examine Colossal Squid

AP (Sep. 16, 2014) Squid experts in New Zealand thawed and examined an unusual catch on Tuesday: a colossal squid. It was captured in Antarctica's remote Ross Sea in December last year and has been frozen for eight months. (Sept. 16) 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