Code:
OIV
465
Name: Leaf: degree of resistance to anthracnose
Category:
,
GROUP OF CHARACTERISTICS,
ORGAN
Subcategory:
ANTRACNOSE,
BIOTIC RESISTANCE - FUNGUS,
LEAF - MATURE,
LEAF - YOUNG
Code: OIV 465
Name: Leaf: degree of resistance to anthracnose
Category: , GROUP OF CHARACTERISTICS, ORGAN
Subcategory: ANTRACNOSE, BIOTIC RESISTANCE - FUNGUS, LEAF - MATURE, LEAF - YOUNG
Primay descriptor priority list
For a quick characterisation of varieties the Genres CT 96 No81 - partners compiled a Primary description priority list. The list encompasses 14 priority one primary descriptors. The chosen descriptors show a good discriminating power between varieties. Most of them are easy to score.
Description
Observations under conditions favourable to anthracnose (Elsinoe ampelina) during the summer period; the symptoms are evident on all herbaceous organs. To check on the petiole and leaf blade the amount, size, shape (circular or polyhedric), and the purplish margin colour of the lesions/spots. 1-3 = Much of the vegetation with many necrotic lesions along the veins and on the leaf petiole. 5 = Small isolated lesions on some leaves. 7 = Small scattered lesions on some leaves. 9 = No visible symptoms.Level expression
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