Bulb splitting In Onion (physiological Disorder)

Causal:-

• Uneven irrigation of onion fields increases the incidence of this disorder.
• Fields that are over irrigated, allowed to dry completely and then over irrigated again often have many split bulbs.
• Bulb mites are frequenty associated with bulb splitting.

Symptoms:-

• The first symptom observed is the basal portion of bulb.
• Secondary growth of the affected bulb often occurs when several small bulbs protruded from the spilt basal portion.

Control:-

• Use uniform irrigation and fertilization practices to prevent phase of bulb spiltting.
• Use of slow growth of the onion bulb varieties can reduces the incidence of this disorder.

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