Iron chlorosis manifests as which leaf condition?

• A. Yellow leaves with green veins
• B. Leaves turning blue
• C. Leaves with black spots
• D. Leaves curling upward

Answer: (A)

Iron chlorosis shows up as yellowing of leaf tissue between the veins while the veins stay green. This happens because iron is essential for chlorophyll production, and in high-pH soils iron becomes less available, so new growth can’t form chlorophyll properly. The result is interveinal chlorosis—leaves appear yellow with green veins, which is exactly what the option describes. The other signs—blue leaves, leaves with black spots, or leaves curling upward—point to different problems like mineral imbalance, disease, or abiotic stress, not iron chlorosis.