Definition

1. Noun (Agriculture):

   • Bakanae disease / foolish seedling disease: A fungal disease, primarily caused by Fusarium moniliforme (Gibberella fujikuroi), that affects rice plants, characterized by excessive elongation (abnormal height), pale leaves, and reduced yield.
   • Damping-off: More generally, a plant disease causing seedlings to rot at the stem base and collapse.

2. Adjective:

   • Very sharp / needle-pointed: Describing an object with an extremely fine, sharp point.

Usage Examples

• Noun (Agriculture):

  • Ruộng lúa này bị bệnh von. (This rice paddy is infected with bakanae disease.)
  • Cây con chết vì bệnh von. (The seedlings died from damping-off.)

• Adjective:

  • Cây bút này có ngòi von. (This pen has a needle-pointed nib.)
  • Mũi tên von. (A very sharp arrowhead.)

Advanced Usage

• The agricultural term "von" is highly specific to plant pathology. In technical contexts, the scientific names "bakanae" or "Fusarium" are used internationally.
• As an adjective, "von" is often used to describe writing instruments (pens, pencils) or tools where precision is key.

Variants and Related Words

• Bệnh von (n): The disease "von"; bakanae disease.

  • Nông dân lo lắng về bệnh von. (Farmers are worried about bakanae disease.)

• Lúa von (n): Rice plants affected by the "von" disease.

  • Lúa von thường còi cọc và chết. (Diseased rice plants are often stunted and die.)

Synonyms

• Bakanae: The specific name for the rice disease.
• Damping-off: A general term for similar seedling diseases.
• Needle-pointed / Fine-pointed: For the adjective meaning.

Related Terms (Technical Context)

• Fusarium moniliforme: The primary fungal pathogen causing the disease.
• Gibberellin: The plant hormone whose overproduction, stimulated by the fungus, causes the excessive elongation.