Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Battling virus disease of watermelon with bottlegourds

05.10.2007
New help may be on the way for beleaguered growers of popular cucurbit crops like cucumbers and watermelons

New help may be on the way for beleaguered growers of popular cucurbit crops like cucumbers and watermelons. Many varieties of the widely grown bottlegourd (Lagenaria siceraria) appear to have resistance to Zucchini yellow mosaic virus (ZYMV), a scourge of commercial cucurbits that includes pumpkins, squashes and other kinds of melons, including watermelons. ZYMV infects cucurbits throughout North America and in other parts of world, and is a particular concern to U.S. producers of watermelon, a crop valued at $435 million in 2006.

Two scientists with the Agricultural Research Service (ARS), which is the chief intramural scientific research agency of the U.S. Department of Agriculture (USDA), are screening bottlegourds for genetic resistance to ZYMV. Plant pathologist Kai-Shu Ling and geneticist Amnon Levi, who work at the U.S. Vegetable Laboratory in Charleston, S.C., have been searching for effective and environmentally friendly techniques to control watermelon pathogens and pests.

Ling and Levi obtained seeds for 190 bottlegourd accessions that were collected from different parts of the world and kept at the ARS Plant Genetic Resources Conservation Unit in Griffin, Ga. They raised the seeds in their Charleston greenhouses, and then inoculated the bottlegourd plants with ZYMV and evaluated how well they resisted the virus.

To their surprise, 36 accessions of the 190 screened—33 from India alone—were completely resistant to ZYMV infection, and another 64 accessions were partially resistant. They also found that ZYMV resistance is heritable in crosses between different bottlegourd accessions, enabling the development of bottlegourd varieties with enhanced virus resistance.

Popular watermelon cultivars could be grafted onto bottlegourd rootstocks with enhanced resistance to bolster the watermelons’ ability to resist ZYMV. Some watermelon growers have already been experimenting with grafting watermelon on bottlegourd rootstocks to control soilborne diseases and to enhance fruit production and quality.

Victor van Buchem | EurekAlert!
Further information:
http://hortsci.ashspublications.org/

More articles from Agricultural and Forestry Science:

nachricht New 3-D model predicts best planting practices for farmers
26.06.2017 | Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign

nachricht Fighting a destructive crop disease with mathematics
21.06.2017 | University of Cambridge

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: Carbon Nanotubes Turn Electrical Current into Light-emitting Quasi-particles

Strong light-matter coupling in these semiconducting tubes may hold the key to electrically pumped lasers

Light-matter quasi-particles can be generated electrically in semiconducting carbon nanotubes. Material scientists and physicists from Heidelberg University...

Im Focus: Flexible proximity sensor creates smart surfaces

Fraunhofer IPA has developed a proximity sensor made from silicone and carbon nanotubes (CNT) which detects objects and determines their position. The materials and printing process used mean that the sensor is extremely flexible, economical and can be used for large surfaces. Industry and research partners can use and further develop this innovation straight away.

At first glance, the proximity sensor appears to be nothing special: a thin, elastic layer of silicone onto which black square surfaces are printed, but these...

Im Focus: 3-D scanning with water

3-D shape acquisition using water displacement as the shape sensor for the reconstruction of complex objects

A global team of computer scientists and engineers have developed an innovative technique that more completely reconstructs challenging 3D objects. An ancient...

Im Focus: Manipulating Electron Spins Without Loss of Information

Physicists have developed a new technique that uses electrical voltages to control the electron spin on a chip. The newly-developed method provides protection from spin decay, meaning that the contained information can be maintained and transmitted over comparatively large distances, as has been demonstrated by a team from the University of Basel’s Department of Physics and the Swiss Nanoscience Institute. The results have been published in Physical Review X.

For several years, researchers have been trying to use the spin of an electron to store and transmit information. The spin of each electron is always coupled...

Im Focus: The proton precisely weighted

What is the mass of a proton? Scientists from Germany and Japan successfully did an important step towards the most exact knowledge of this fundamental constant. By means of precision measurements on a single proton, they could improve the precision by a factor of three and also correct the existing value.

To determine the mass of a single proton still more accurate – a group of physicists led by Klaus Blaum and Sven Sturm of the Max Planck Institute for Nuclear...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Closing the Sustainability Circle: Protection of Food with Biobased Materials

21.07.2017 | Event News

»We are bringing Additive Manufacturing to SMEs«

19.07.2017 | Event News

The technology with a feel for feelings

12.07.2017 | Event News

 
Latest News

NASA mission surfs through waves in space to understand space weather

25.07.2017 | Physics and Astronomy

Strength of tectonic plates may explain shape of the Tibetan Plateau, study finds

25.07.2017 | Earth Sciences

The dense vessel network regulates formation of thrombocytes in the bone marrow

25.07.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>