ISHS Acta Horticulturae 94: XI International Symposium on Fruit Tree Virus Diseases
IMPORTANCE AND METHODS OF CHECKING FRUIT TREES FOR TOLERANCE TO VIRUS AND MYCOPLASMA DISEASES |
| Authors: | H. KEGLER, H. KLEINHEMPEL, T. VERDEREVSKAJA, D. TRIFONOV, C. FISCHER |
| Abstract:
The growing of fruit tree varieties being tolerant to naturally transmitted and economically significant virus and mycoplasma diseases is gaining importance. In our countries, these include apple witches' broom, pear decline, cherry necrotic ringspot and plum pox. From these diseases suitable germ sources were selected for resistance checking. Massive inoculation proved the best-suited method for checking resistance. The hitherto conducted investigations on idiotypes of the tree species mentioned have revealed that tolerance to virus and mycoplasma diseases does not occur rarely. A technique was devised for complex resistance testing to virus, mycoplasma, bacterial and fungous diseases. | |
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