potato tuber necrotic ring disease
browning at sasa.gov.uk
Wed Dec 7 12:27:49 EST 1994
From: browning at sasa.gov.uk
Date: 6 Dec 94 12:45:08 -0000
>The PVY isolate causing Potato Tuber Necrotic Ring Disease affects
>cultivars which are either immune or possess high levels of field
>resistance to PVY. The symptoms described resemble those I have
>experienced on manual inoculation of PVA resistant cultivars with PVA.
>The resultant tubers grow poorly and may show leaf drop streak.I would
>be interested to hear if anyone considers that the symptoms induced by
>the PVYNRD isolate are in fact resistance reactions.
>Diagnostics and Molecular Biology Section
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