Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Artichokes grow big in Texas

15.12.2011
Researchers recommend best practices for commercial production in water-limited regions

Loaded with antioxidants and phytochemicals, the artichoke is becoming more popular as consumer interest in specialty products swells. And while 90% of the artichokes grown in the United States come from California, growers in Texas are working to introduce globe artichokes as commercial specialty crop in their region. They say the healthy vegetable has the potential to provide new economic opportunities for regional agricultural throughout the southern U.S.

The authors of a new study say that before artichoke can be successfully established in Texas and southern regions of the U.S. where water is scarce, more information is needed about irrigation and nitrogen (N) management practices. Togo Shinohara, Shinsuke Agehara, Kil Sun Yoo, and Daniel Leskovar from Texas AgriLife Research, Vegetable and Fruit Improvement Center at Texas A&M University published a study in HortScience that should give growers the tools they need to ramp up commercial artichoke operations.

"The aim of our three-season study was to determine crop yield, quality, and nutritional components of fresh artichoke heads in response to differential irrigation regimes and N fertilizer rates", said author Daniel Leskovar. "To introduce artichoke cultural practices into commercial production in water-limited regions of the southern United States, it is important to understand impact of these practices."

The scientists evaluated marketable yield, yield components, quality, and nutrient levels of artichoke heads grown under three irrigation regimes (50%, 75%, and 100% crop evapotranspiration) and four nitrogen rates (0 to 10, 60, 120, and 180 kg/ha) under subsurface drip irrigation.

Results of the field experiments showed that irrigation was more effective than N management for optimizing artichoke yield. Marketable yields significantly increased at 100% evapotranspiration (ETc) compared with 75% and 50% ETc, whereas a 20% to 35% yield reduction occurred at 50% ETc across seasons. The researchers believe that the lack of yield responses to N rates was in part the result of high pre-plant soil NO3-N and NH4-N levels.

Harvest time appeared to have the largest effect on artichoke nutritional quality, followed by deficit irrigation. "Total phenolics and chlorogenic acid of artichoke heads increased as the harvesting season progressed and were highest at 50% ETc during mid- and late harvests in one season", Leskovar noted.

The team concluded that approximately 700 mm (for a bare soil system) and approximately 350 mm (in a plasticulture system) of water inputs and 120 kg/ha or less of N appears sufficient to obtain high marketable yields, superior size, and optimal nutritional quality for production of artichokes in Texas.

The researchers hope their efforts will bridge the knowledge gap on irrigation and nitrogen management practices and help put artichoke production on the map in Texas.

The complete study and abstract are available on the ASHS HortScience electronic journal web site: http://hortsci.ashspublications.org/cgi/content/abstract/46/3/377

Founded in 1903, the American Society for Horticultural Science (ASHS) is the largest organization dedicated to advancing all facets of horticultural research, education, and application. More information at ashs.org

Michael W. Neff | EurekAlert!
Further information:
http://www.ashs.org

More articles from Agricultural and Forestry Science:

nachricht Researchers discover a new link to fight billion-dollar threat to soybean production
14.02.2017 | University of Missouri-Columbia

nachricht Important to maintain a diversity of habitats in the sea
14.02.2017 | University of Gothenburg

All articles from Agricultural and Forestry Science >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Breakthrough with a chain of gold atoms

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

Im Focus: DNA repair: a new letter in the cell alphabet

Results reveal how discoveries may be hidden in scientific “blind spots”

Cells need to repair damaged DNA in our genes to prevent the development of cancer and other diseases. Our cells therefore activate and send “repair-proteins”...

Im Focus: Dresdner scientists print tomorrow’s world

The Fraunhofer IWS Dresden and Technische Universität Dresden inaugurated their jointly operated Center for Additive Manufacturing Dresden (AMCD) with a festive ceremony on February 7, 2017. Scientists from various disciplines perform research on materials, additive manufacturing processes and innovative technologies, which build up components in a layer by layer process. This technology opens up new horizons for component design and combinations of functions. For example during fabrication, electrical conductors and sensors are already able to be additively manufactured into components. They provide information about stress conditions of a product during operation.

The 3D-printing technology, or additive manufacturing as it is often called, has long made the step out of scientific research laboratories into industrial...

Im Focus: Mimicking nature's cellular architectures via 3-D printing

Research offers new level of control over the structure of 3-D printed materials

Nature does amazing things with limited design materials. Grass, for example, can support its own weight, resist strong wind loads, and recover after being...

Im Focus: Three Magnetic States for Each Hole

Nanometer-scale magnetic perforated grids could create new possibilities for computing. Together with international colleagues, scientists from the Helmholtz Zentrum Dresden-Rossendorf (HZDR) have shown how a cobalt grid can be reliably programmed at room temperature. In addition they discovered that for every hole ("antidot") three magnetic states can be configured. The results have been published in the journal "Scientific Reports".

Physicist Dr. Rantej Bali from the HZDR, together with scientists from Singapore and Australia, designed a special grid structure in a thin layer of cobalt in...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Booth and panel discussion – The Lindau Nobel Laureate Meetings at the AAAS 2017 Annual Meeting

13.02.2017 | Event News

Complex Loading versus Hidden Reserves

10.02.2017 | Event News

International Conference on Crystal Growth in Freiburg

09.02.2017 | Event News

 
Latest News

Switched-on DNA

20.02.2017 | Materials Sciences

Second cause of hidden hearing loss identified

20.02.2017 | Health and Medicine

Prospect for more effective treatment of nerve pain

20.02.2017 | Health and Medicine

VideoLinks
B2B-VideoLinks
More VideoLinks >>>