A mechanical harvester for harvesting a produce with a stem/core planted in a field includes a chassis, and a cutting device and a transport assembly connected to the chassis. The cutting device is configured to cut the stem/core of the produce. The transport assembly is configured to transport the produce using a movable first belt with a first set of produce grippers and a movable second belt with a second set of produce grippers. When the produce is held between the first set and second set of produce grippers, a portion of the first set of produce grippers opposes a portion of the second set of produce grippers. The opposing produce grippers are configured to compress and exert a force on the produce to hold the produce between the movable first and second belts.

A harvester selectively harvests edible crowns ready for harvesting. The harvester may include an imaging system for capturing image(s) of the edible crowns and a de-leafing component that removes leaves of the broccoli plant. For example, broccoli plants typically have an abundance of leaves that reside beneath, alongside of, and even above the edible crowns. The leaves may conceal the edible crowns and impact a quality of the image(s). The de-leafing component may be positioned in front of the imaging system, relative to a direction of travel of the harvester, to remove the leaves and isolate or expose the edible crown. Therein, the imaging system may image the edible crowns for use in determining whether the edible crowns are ready for harvesting.