Commercial organic tomato production is lucrative but challenging. Marketable fruit can bring a good price but yield is reduced by crop disease and insect pressure, drought and flooding, non-optimal nutrient supplies and other factors. Grafted tomato plants can be less susceptible to some of these stresses, particularly certain nematodes and soilborne diseases. There is also evidence that grafted tomato plants tolerate unwanted extremes in soil moisture, low soil fertility and high soil salinity levels more effectively than ungrafted plants.
Grafting creates a direct, physical and one-time ‘hybrid’ plant with traits of the rootstock and scion varieties it contains. Rootstock and scion variety selection is the first step in using grafted tomato plants and the selection should be done very carefully based on traits that are important to you on your farm. Learn more about how thousands of combinations affect production outcomes and what Ohio State University is researching in the January 2014 issue of Acres U.S.A.