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A growing body of evidence suggests that grafted vegetable plants can tolerate or resist certain soil-borne diseases and pests and certain types of abiotic stress (e.g., salinity, low/high temperature, low fertility, and drought/flood) more effectively than their ungrafted counterparts. Other evidence suggests that grafted plants can also be more vigorous.
These characteristics raise the possibility that growers who use grafted plants will retain the ability to produce abundant, high-quality crops under a range of challenging conditions.
That said, other data underscore the notion that management protocols used to produce fruit with grafted plant may need to differ from protocols used in standard, ungrafted systems in order to maximize the return on investment in grafted plants. Fertility, irrigation, pruning and trellising, and crop protection and harvest regimens and plant populations may need to be altered.
Resources available at links to the left explain and demonstrate the preparation, use and performance of grafted plants. Many of these resources are designed with end-users in mind and most represent a distillation of insights gained in numerous experiments.