Tucked into a suburban Long Island neighborhood, a 12-acre plot may be growing the future.

Under a blistering July sun, Zachary Lippman bends over a row of foot-high plum tomato plants to reveal budding yellow flowers that will each produce a tomato and ripen over the summer. Out here, on the grounds of a former dairy farm, it has all the appearance of age-old tradition.

But inside a nearby lab, Lippman advanced the selective breeding process with a little nip and tuck of the plant’s own DNA, and now the “edited” plant is about to bear fruit in the field.

“There’s a long way to go, but what we have able to do in the last four or five years is