Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Crop Breeding Gets Boost from Sweet Potatoes

02.12.2010
In Uganda, the sweet potato is a major staple crop. Behind China and Nigeria, Uganda produces the most sweet potatoes in the world. Nationwide, families grow the crop to feed themselves, their livestock and to use as a source of income.

Small scale agricultural operations use a large number of sweet potato varieties in their planting. These varieties are steadily being lost due to weevils, sweet potato virus disease and environmental factors.

In an effort to identify, collect, evaluate, and mitigate the loss of important types, a study was conducted by the Sweet Potato Program of the National Crops Resources Research Institute in Namulaong, Uganda.

Initially, 1303 different genotypes were collected from 21 districts across Uganda. The collection was then planted at the Institute and harvested 90 to 100 days later. The sweet potatoes were placed into morphologically distinct groups after being evaluated for yield, dry matter content, and pest and disease resistance.

In the end, 946 distinct varieties were identified. The plethora of sweet potato genotypes is incredibly important for breeding. The thorough characterization of each sweet potato accession, or group type, will help eliminate duplicate breeding. Additionally, the research can be used to breed different types to possess certain desired traits. For instance, a sweet potato could be developed to be able to resist a particular pest or disease, or to thrive in a harsh environment.

According to the study’s author, Robert O. M. Mwanga, these discoveries are just the beginning of much more intense research.

“Further evaluation of the genotypes at phenotypic and molecular levels is needed to efficiently select genotypes that combine a number of useful traits for use as parents in hybridization schemes to produce improved cultivars for Uganda and Sub-Saharan Africa,” he says.

Moreover, the genotypes need to be duplicated at the International Potato Center in Lima, Peru and in other regional offices to conserve the distinct accessions.

Mwanga hopes that high yielding, pest and disease resistant, and nutritious varieties will be released for farmers in Uganda, and all over Sub-Saharan Africa.

The study was funded by a grant from the McKnight Foundation and the full study can be found in the November – December 2010 issue of Crop Science.

The full article is available for no charge for 30 days following the date of this summary. View the abstract at www.crops.org/publications/cs/abstracts/50/6/2364.

Crop Science is the flagship journal of the Crop Science Society of America. Original research is peer-reviewed and published in this highly cited journal. It also contains invited review and interpretation articles and perspectives that offer insight and commentary on recent advances in crop science. For more information, visit www.crops.org/publications/cs

The Crop Science Society of America (CSSA), founded in 1955, is an international scientific society comprised of 6,000+ members with its headquarters in Madison, WI. Members advance the discipline of crop science by acquiring and disseminating information about crop breeding and genetics; crop physiology; crop ecology, management, and quality; seed physiology, production, and technology; turfgrass science; forage and grazinglands; genomics, molecular genetics, and biotechnology; and biomedical and enhanced plants.

CSSA fosters the transfer of knowledge through an array of programs and services, including publications, meetings, career services, and science policy initiatives. For more information, visit www.crops.org

Sara Uttech | Newswise Science News
Further information:
http://www.crops.org

More articles from Agricultural and Forestry Science:

nachricht New research recovers nutrients from seafood process water
31.10.2018 | Chalmers University of Technology

nachricht Plant Hormone Makes Space Farming a Possibility
17.10.2018 | Universität Zürich

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: A Chip with Blood Vessels

Biochips have been developed at TU Wien (Vienna), on which tissue can be produced and examined. This allows supplying the tissue with different substances in a very controlled way.

Cultivating human cells in the Petri dish is not a big challenge today. Producing artificial tissue, however, permeated by fine blood vessels, is a much more...

Im Focus: A Leap Into Quantum Technology

Faster and secure data communication: This is the goal of a new joint project involving physicists from the University of Würzburg. The German Federal Ministry of Education and Research funds the project with 14.8 million euro.

In our digital world data security and secure communication are becoming more and more important. Quantum communication is a promising approach to achieve...

Im Focus: Research icebreaker Polarstern begins the Antarctic season

What does it look like below the ice shelf of the calved massive iceberg A68?

On Saturday, 10 November 2018, the research icebreaker Polarstern will leave its homeport of Bremerhaven, bound for Cape Town, South Africa.

Im Focus: Penn engineers develop ultrathin, ultralight 'nanocardboard'

When choosing materials to make something, trade-offs need to be made between a host of properties, such as thickness, stiffness and weight. Depending on the application in question, finding just the right balance is the difference between success and failure

Now, a team of Penn Engineers has demonstrated a new material they call "nanocardboard," an ultrathin equivalent of corrugated paper cardboard. A square...

Im Focus: Coping with errors in the quantum age

Physicists at ETH Zurich demonstrate how errors that occur during the manipulation of quantum system can be monitored and corrected on the fly

The field of quantum computation has seen tremendous progress in recent years. Bit by bit, quantum devices start to challenge conventional computers, at least...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

“3rd Conference on Laser Polishing – LaP 2018” Attracts International Experts and Users

09.11.2018 | Event News

On the brain’s ability to find the right direction

06.11.2018 | Event News

European Space Talks: Weltraumschrott – eine Gefahr für die Gesellschaft?

23.10.2018 | Event News

 
Latest News

Massive impact crater from a kilometer-wide iron meteorite discovered in Greenland

15.11.2018 | Earth Sciences

When electric fields make spins swirl

15.11.2018 | Physics and Astronomy

Discovery of a cool super-Earth

15.11.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>