Perennial growth and salinity tolerance in wheat × wheatgrass amphiploids varying in the ratio of wheat to wheatgrass genomes
Juliya Abbasi
Department of Plant Sciences, University of California, Davis, CA, USA
Search for more papers by this authorHamid Dehghani
Department of Plant Sciences, University of California, Davis, CA, USA
Search for more papers by this authorJan Dvorak
Department of Plant Sciences, University of California, Davis, CA, USA
Search for more papers by this authorCorresponding Author
Patrick E. McGuire
Department of Plant Sciences, University of California, Davis, CA, USA
Correspondence
Patrick E. McGuire, Department of Plant Sciences, University of California, Davis, CA, USA.
Email: pemcguire@ucdavis.edu
Search for more papers by this authorJuliya Abbasi
Department of Plant Sciences, University of California, Davis, CA, USA
Search for more papers by this authorHamid Dehghani
Department of Plant Sciences, University of California, Davis, CA, USA
Search for more papers by this authorJan Dvorak
Department of Plant Sciences, University of California, Davis, CA, USA
Search for more papers by this authorCorresponding Author
Patrick E. McGuire
Department of Plant Sciences, University of California, Davis, CA, USA
Correspondence
Patrick E. McGuire, Department of Plant Sciences, University of California, Davis, CA, USA.
Email: pemcguire@ucdavis.edu
Search for more papers by this authorAbstract
Since wheat and other annual cereal crops are often harvested for forage instead of grain in California, replacing them with perennial crops could save energy and reduce the release of heat-trapping gases. To assess the potential for perennial crops based on wheat, biomass yield and stand persistence were studied for nine wheat×wheatgrass amphiploids (8x to 14x) and five wheatgrass species (2x to 10x) over three seasons in the Central Valley, California. The 8x and 10x amphiploids died after one biomass harvest and a single summer period. In contrast, the 14x amphiploids, which were sterile, continued producing biomass over the entire period of the trial. They were also highly salt-stress tolerant with little decline in biomass production in response to an increase in salinity from 100 and 250 mM NaCl in a solution-culture study. The development of a salt-stress-tolerant perennial crop based on wheat for the California-type climate will require either a substantial improvement in perennial growth of low-ploidy (8x) amphiploids or the development of technology for efficient vegetative propagation of the sterile high-ploidy (14x) amphiploids.
CONFLICT OF INTEREST
The authors state that they have no conflicts of interest to report.
Open Research
DATA AVAILABILITY STATEMENT
The raw data for the field perenniality trial and the assessment of salinity tolerance are available as Online Resource 2 and Online Resource 3, respectively.
Supporting Information
| Filename | Description |
|---|---|
| pbr12856-sup-0001-OnlineResource1.docxWord document, 24 KB | Supplementary Material |
| pbr12856-sup-0002-OnlineResource2.xlsxapplication/excel, 16.2 KB | Supplementary Material |
| pbr12856-sup-0003-OnlineResource3.xlsxapplication/excel, 15.9 KB | Supplementary Material |
Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
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