Terminal bud commonly remains alive

  1. Young leaves permanently wilted (wither tip effect), without spotting or marked chlorosis; twig or stalk just below tip and seedhead often unable to stand erect in later stages when shortage is acute_COPPER
  2. Young leaves not wilted; chlorosis is present with or without spots of dead tissue (necrosis).
  3. Necrosis not commonly present. Plants not particularly stunted. Leaves pale green, veins often somewhat lighter in color than interveinal area. Often difficult to distinguish from nitrogen deficiency_SULFUR
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