The picture on the
right shows a young chrysanthemum plant showing yellowing of upper
leaves and growing tip. Chlorosis due to severe Iron deficiency
tends to affect the entire leaf rather than the inter-veinal affects
of other disorders.
Severe deficiency may
also reduce leaf size and cause stunting of growth. Flowering may be
delayed and flower colour paler.
Excess iron manifests
itself as deep red colouration in the veins of older leaves within a
few days of planting.