Featured Research

from universities, journals, and other organizations

Disease Damages Wheat Roots, Thwarts Water Uptake

Date:
March 21, 2006
Source:
Texas A&M University - Agricultural Communications
Summary:
Alterations in irrigation schedules may be needed when wheat streak mosaic infection is suspected in winter wheat crops, according to a Texas Agricultural Experiment Station researcher in Amarillo. Drought this winter has prompted more irrigation of wheat than normal; however, wheat streak mosaic is also being detected, said Jacob Price, a graduate student and diagnostic technician for the Experiment Station's plant pathology department.

Jacob Price, Texas Agricultural Experiment Station diagnostic technician, examines a wheat plant with about 80 percent infection of wheat streak mosaic after inoculation with the virus. (Texas Agricultural Experiment Station photo by Kay Ledbetter)

Alterations in irrigation schedules may be needed when wheat streak mosaic infection is suspected in winter wheat crops, according to a Texas Agricultural Experiment Station researcher in Amarillo.

Drought this winter has prompted more irrigation of wheat than normal; however, wheat streak mosaic is also being detected, said Jacob Price, a graduate student and diagnostic technician for the Experiment Station's plant pathology department.

Wheat streak mosaic, the most common wheat disease in the Texas Panhandle, is a problem throughout many wheat production areas, Price said. The disease is spread by the wheat curl mite and currently no pesticides can control the mite, he said.

In the High Plains, wheat is frequently irrigated and grown for both grazing and grain production, he said. It is already known the disease has a negative impact on plant development and forage yield.

Now Price is trying to get to the "root" of the problem. He wants to determine what effect the stunted root systems of infected plants have on their uptake of irrigation water and whether different levels of irrigation make a difference on the plants' growth and yields.

"We're trying to determine if it is worth irrigating at all," he said.

"I hope this research will develop recommendations on irrigation for infected wheat plants."

Samples are already being submitted this year with the yellowing, stunted symptoms of wheat streak mosaic to Jacobs. After making a diagnosis, he sends the information to the Plant Diagnostic Information System, a wide-scale information system used by many agricultural centers.

"What I've seen in my experiments so far is it (the disease) damages root growth," he said. "Once infected, the roots don't grow anymore. If they don't develop, they can't take up water efficiently and expensive irrigation water would be wasted."

Producers normally irrigate using the guidance of the Texas High Plains Evapotransporation network, Price said. The network collects weather data from various stations and uses it to estimate the daily water use of a crop.

By determining how much water the infected plants are actually taking up, he said he hopes to help producers save water and money and still maintain the best possible yields under the diseased scenario.

His study is only a year old, but Price intends to replicated it two more years both in the greenhouse and in the field. The greenhouse study looks primarily at root mass, while the field study tests plant production and yield, he said. He is using a neutron depth moisture gauge to monitor water uptake.

"When it starts warming up and the wheat starts growing, that's when we'll see more yellowing and we'll get a lot more samples to test," he said.

"I'm concerned since we've had so much drought and it's so expensive to irrigate this year," Price said. "Water-use efficiency is going to be key."


Story Source:

The above story is based on materials provided by Texas A&M University - Agricultural Communications. Note: Materials may be edited for content and length.


Cite This Page:

Texas A&M University - Agricultural Communications. "Disease Damages Wheat Roots, Thwarts Water Uptake." ScienceDaily. ScienceDaily, 21 March 2006. <www.sciencedaily.com/releases/2006/03/060306094415.htm>.
Texas A&M University - Agricultural Communications. (2006, March 21). Disease Damages Wheat Roots, Thwarts Water Uptake. ScienceDaily. Retrieved July 28, 2014 from www.sciencedaily.com/releases/2006/03/060306094415.htm
Texas A&M University - Agricultural Communications. "Disease Damages Wheat Roots, Thwarts Water Uptake." ScienceDaily. www.sciencedaily.com/releases/2006/03/060306094415.htm (accessed July 28, 2014).

Share This




More Plants & Animals News

Monday, July 28, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: Sea Turtle Hatchlings Emerge from Nest

Raw: Sea Turtle Hatchlings Emerge from Nest

AP (July 27, 2014) A live-streaming webcam catches loggerhead sea turtle hatchlings emerging from a nest in the Florida Keys. (July 27) Video provided by AP
Powered by NewsLook.com
Trees Could Save More Than 850 Lives Each Year

Trees Could Save More Than 850 Lives Each Year

Newsy (July 27, 2014) A national study conducted by the USDA Forest Service found that trees collectively save more than 850 lives on an annual basis. Video provided by Newsy
Powered by NewsLook.com
What's To Blame For Worst Ebola Outbreak In History?

What's To Blame For Worst Ebola Outbreak In History?

Newsy (July 27, 2014) A U.S. doctor has tested positive for the deadly Ebola virus, as the worst-ever outbreak continues to grow. Video provided by Newsy
Powered by NewsLook.com
The New York Times Backs Pot Legalization

The New York Times Backs Pot Legalization

Newsy (July 27, 2014) The New York Times has officially endorsed the legalization of marijuana, but why now, and to what end? 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