Identification and reason for bulb splitting In Onion (physiological Disorder)

  • Uneven irrigation of onion fields increases the chances 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 frequently associated with bulb splitting.
  • The first symptom is observed as the rotting of the basal portion of the bulb.
  • Secondary growth of the affected bulb often occurs when several small bulbs protruded from the spilt basal portion.
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