A physiological metabolic disorder manifested as tissue death inside the head due to calcium deficiency, nitrogen imbalance, or unfavorable environmental conditions.
In the reference
8
varieties
crop Red cabbage,
where this is mentioned in the description.
Internal necrosis in red cabbage is a non-infectious disease, often mentioned in hybrid specifications as a key breeding trait. The damage is localized inside the head and manifests as black or brown dots, streaks, and spots caused by tissue necrosis.
The causes of this condition are metabolic disturbances, particularly calcium deficiency, as well as sharp fluctuations in soil moisture and an imbalance of nitrogen fertilizers. Resistance to this phenomenon is not linked to specific immunity genes but is evaluated during variety trials as a complex physiological characteristic of the hybrid.
General information about the subject — on the page
Tissue necrosis.
Varieties of Red cabbage mentioned in the description
Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.