Rice Ontology 
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=Term,
=Trait,
=Method, and
=Scale
Variables
Concept details
| Key | Value |
|---|---|
| scale_id | CO_320:0000341 |
| scale_name | leaf blast damage scale |
| ontology_id | CO_320 |
| ontology_name | Rice |
| scale_class | Ordinal |
| category_1 | 0= No lesions observed |
| category_2 | 1= Small brown specks of pin-point size or larger brown specks without sporulating center |
| category_3 | 2= Small roundish to slightly elongated, necrotic gray spots, about 1-2 mm in diameter, with a distinct brown margin. Lesions are mostly found on the lower leaves. |
| category_4 | 3= Lesion type is the same as in scale 2, but a significant number of lesions are on the upper leaves |
| category_5 | 4= Typical susceptible blast lesions 3 mm or longer, infecting less than 4% of the leaf area |
| category_6 | 5= Typical blast lesions infecting 4-10% of the leaf area |
| category_7 | 6= Typical blast lesions infection 11-25% of the leaf area |
| category_8 | 7= Typical blast lesions infection 26-50% of the leaf area |
| category_9 | 8= Typical blast lesions infection 51-75% of the leaf area and many leaves are dead |
| category_10 | 9= More than 75% leaf area affected |
| language | EN |
| created_at | 2023-07-25-13:52:48 |



