Calcium deficiency - Cauliflower

Symptoms
Necrotic leaf margins and "clawlike" deformations at the youngest leaves. The curd dies off.

Reasons
Calcium deficiency

Symptoms
Symptoms of calcium deficiency start on young leaves. They develop necrotic lesions on leaf tips and margins. With ongoing Ca deficiency necrotic areas progress from tips and margins inwards. Affected leaves are deformed because only necrotic areas of leaves stop growing.

Reasons
Calcium deficiency on cauliflower Most soils contain enough calcium, but restricted Ca uptake leads to calcium deficiency. High content of ammonium, potassium, magnesium or sodium in the soil and water stress (deficiency or excess) induce calcium deficiency.

Symptoms
Symptoms of calcium deficiency start on young leaves. They develop necrotic lesions on leaf tips and margins. With ongoing Ca-deficiency necrotic areas progress from tips and margins inwards. Affected leaves are deformed. Segments of the curd may be brown and glassy ("glassiness of cauliflower").

Reasons
Calcium deficiency on cauliflower. Many soils contain enough calcium, but restricted Ca uptake leads to calcium deficiency.

Symptoms
Symptoms of calcium deficiency start on younger leaves. They develop necrotic lesions on leaf tips and margins ( "tip-burn"). With ongoing Ca-deficiency necrotic areas and a chlorotic border progress from tips and margins inwards. Affected leaves are deformed and abraded.

Reasons
Calcium deficiency on cauliflower Most soils contain enough calcium, but restricted Ca uptake leads to calcium deficiency. High content of ammonium, potassium, magnesium or sodium in the soil and water stress (deficiency or excess) induce calcium deficiency.