von
Definition
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.
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.