ISHS Acta Horticulturae 44: IX International Symposium on Fruit Tree Virus Diseases
CYDONIA C 7-1 AND PYRONIA VEITCHII TWO COMPLEMENTARY INDICATORS |
| Authors: | J.C. Desvignes, A. Savio |
| Abstract:
Pear and apple indexing in Lanxade Center, confirmed the sensitivity of the two indicators Cydonia C 7-1 and Pyronia veitchii. The former is sensitive to the diseases belonging to the chlorotic leaf spot (CLSV) - ring mosaic (RMV) and rubbery wood (RW) - quince yellow blotch (QYB) groups. The reactions to CLSV are most severe. The latter is more sensitive than the pears, C 7-1 and Spy 227 by the viroses of the veil yellows (VYV) - spy decline (SDV) group. The C 7-1 also and especially reacts to the Krikon stem necrosis (NKV) and to the raspberry bushy dwarf (RBDV). | |
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