Swollen shoot disease of cacao in Togo: early detection of virus strains in the trees

Partiot Michel, Posnette A.F.. 1983. Swollen shoot disease of cacao in Togo: early detection of virus strains in the trees. In : Proceedings of the Twelfth International Symposium on Fruit tree virus diseases, Vancouver, Canada, June 17-26, 1982. Hansen A.J. (ed.). ISHS. Wageningen : ISHS [Pays-Bas], 67-69. (Acta Horticulturae, 130) ISBN 978-90-66051-11-9 International Symposium on Fruit Tree Virus Diseases. 12, Vancouver, Canada, 17 Juin 1982/26 Juin 1982.

Résumé : Counts of ovules per ovary enable latent infection with severe strains of swollen shoot virus to be detected in cacao trees. The number of ovules is lower in flowers from infected trees than from healthy ones and is higher in trunk flowers than in those on the branches, the reverse of the difference found in healthy trees. The distribution of ovules in trees infected with avirulent strains was not affected. Changes in ovule numbers were found only 1 month after inoculation with virulent virus and decreased progressively in subsequent months, more rapidly in flowers from branches than from the trunk.

Mots-clés Agrovoc : Theobroma cacao, virus des végétaux

Mots-clés géographiques Agrovoc : Togo

Mots-clés complémentaires : Swollen shoot

Classification Agris : H20 - Maladies des plantes

Auteurs et affiliations

• Partiot Michel, GERDAT (TGO)
• Posnette A.F., CCCA (GBR)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/539147/)

Métriques

[ Page générée et mise en cache le 2024-03-25 ]