SULPHUR DEFICIENCY AND TOXICITY SYMPTOMS IN GREENHOUSE TOMATOES AND CUCUMBERS

Abstract

Symptoms of sulphur deficiency and toxicity on greenhouse tomatoes (Lycopersicon esculentum Mill.) and cucumbers (Cucumis sativis L.) were produced experimentally in sand culture and are described in detail. The principal morphological effect was a general depression of growth and fruit production. A S content of less than 0.25% in any plant tissue was associated with severe deficiency. The distribution of S in various plant tissues is shown.