Crop rotation with nematode-resistant wheat can protect tomatoes
“If farmers use a wheat that does not have the resistant genes, more nematodes survive, and they’ll be there when they plant tomatoes,” explains Williamson. “But if they plant the resistant wheat, there won’t be as many nematodes in the soil.” Dubcovsky noted that the last three bread wheat varieties released by the University of California Wheat breeding program and the USDA- supported Triticeae-CAP project all carry this resistance gene and are readily available to growers.
The results from the study offer a promising option for reducing nematode damage. The next step is to verify the findings on a larger scale. Williamson and her team grew plants both in greenhouses and in small microplots. They are now anticipating that agronomists will try the rotation on a field scale.
“We wanted to get the results out there so that people who work in the field, farm advisers for example, can see if it works in practice as well as it did in a controlled experiment.”
View the abstract at: http://dx.doi.org/doi:10.2135/cropsci2012.12.0681
The full article is available for no charge for 30 days following the date of this summary. View the abstract at https://www.crops.org/publications/cs/abstracts/0/0/cropsci2012.12.0681.