Characteristic symptoms include pale green to yellow leaves in the upper part of plant.
In case of severe deficiency, plants have only few vegetative and fruiting branches.
The most consistent symptom is the irregular-thickening of young petioles, accompanied by dark bands and necrotic pith.
In case of deficiency becoming more severe, stunting, shorter internodes, splitting of petioles and possibly main stems, deformation of leaves, abnormal terminals and excessive branching, have been observed.
Discolouration of flowers and early bolls are common. New leaves are smaller than the normal ones, with margins and main vein showing
chlorotic symptoms and get cupped upwards.