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arner tree
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chestnut blight north america european chestnut annual meeting fungal viruses hypovirulent isolates biological control southern ontario american chestnut trees forest conservation cryphonectria parasitica germination and survival fungal pathogen parent trees cause disease
Hypovirulence
... where extensive stands of European chestnut are present once again. The "Arner Tree" A healed canker on the Arner tree In North America, hypovirulence has also been found and several sites ... "Arner Tree" represents one of the most impressive examples of naturally-occurring hypovirulence in Ontario. This is a mature tree that has been severely infected with Chestnut blight. However, this tree ...
www.uoguelph.ca
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... instructs how to collect and store pollen, prepare a tree, label and bag the flowers, pollinate, and harvest and ... tree with a trunk diameter (dbh) of about 35 cm (14"). In 1983, I discovered that it was infected with a hypovirulent strain of the blight fungus. The Arner tree ... virus-infected strain of the blight fungus infecting the Arner tree. To date, it has failed to convert virulent strains ...
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