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Potato spindle tuber (PSTVd)
Pospiviroid Potato Spindle Tuber Viroid

Potato spindle tuber (PSTVd) (Pospiviroid Potato Spindle Tuber Viroid) is a viral pathogen.

Affected Potato tubers of some varieties are small, narrow and spindle-like. In other varieties tubers develop knobs and swellings. In some varieties eyes are numerous, shallow and more prominent, and tubers are often cracked.

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