Chroniton

Chronitons are a type of sub-atomic particle which are linked to time. Chronitons are often associated with temporal anomalies and instances of time travel.

In 2365 Kori and Cumin, farmer's children on The Armada, found a Romulan torpedo, within which they found a quantity of chroniton particles. They hatched a plan to have to use the particles as a crop treatment to accelerate the growth of crops in The Armada, thus giving them more free time. They took this plan to their parents who agreed and secretly treated their crops. Unfortunately the children were not satisfied to simply get some more free time and sabotaged the chroniton formula to make it destroy the crops. This led to massive crop failures and Starfleet calling in the USS Enterprise (NCC-1701-D), the crew of which soon discovered what the farmers had done. Year's later a Cardassian colony was forced to abandon when it's food supplies were contaminated with chroniton radiation.