Healthy reference
The poster shows optimal growth as vigorous new growth, robust fan growth, healthy foliage and strong shoot tips.
Iron and manganese patterns
Iron deficiency is shown affecting new growth first, starting with interveinal chlorosis while veins stay sharply green.
Iron mid to late stages show stronger yellowing, then nearly white or bleached leaves with necrosis at the margins and stunted growth.
Manganese deficiency is shown affecting new and middle leaves, beginning with mottled interveinal chlorosis and small brown specks before progressing to necrotic spotting, curl and premature leaf drop.
Zinc pattern
Early zinc deficiency is shown as small narrow new leaves with interveinal yellowing.
Mid stage shows rosetting at shoot tips, shortened internodes and twisted leaves.
Late stage shows severe twisting, necrotic growth and shoot tip dieback.
Diagnostic summary
Iron
interveinal yellowing with sharp green veins, progressing toward bleaching
Manganese
mottled or checkered yellowing with brown speckling and necrotic spots
Zinc
little leaves, tight rosettes and distorted new growth