English to Russian Science Agriculture

Moreover, the only test results provided were for a single safener, dietholate, and the largest percent reduction in injury obtained was only 80.0 %. This latter value was obtained by applying the safening compound to seeds as a seed treatment, and then later applying clomazone.

в тексте присутствует термин safener. я перевела его как антидот. а как перевести производное этого слова?
спасибо!