Pennsylvania Code & Bulletin
COMMONWEALTH OF PENNSYLVANIA

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7 Pa. Code § 120.2. Definitions.

§ 120.2. Definitions.

 The following words and terms, when used in this chapter, have the following meanings, unless the context clearly indicates otherwise:

   Bureau—The Bureau of Plant Industry of the Department.

   Department—The Department of Agriculture of the Commonwealth.

   FTIP—Fruit Tree Improvement Program.

   Foundation block—An isolated planting of registered trees, maintained by the Department to serve as the primary source of propagating material for commercial production.

   Index—To test a plant for virus infection by means of inoculation from the plant to be tested to an indicator plant or by other standard procedures.

   Indicator plant—A woody or herbaceous plant used for detecting viruses.

   Nuclear block—A planting of indexed trees, maintained and continuously protected from virus reinfection in a screenhouse that serves as the source of propagating material for a foundation block.

   Nursery increase block—A planting of nursery stock, originating from registered seed and scion sources, used for increasing registered trees.

   Off-type—Possessing characteristics different from the variety or cultivar listed on the application.

   Penn premium-certified—Department approved fruit tree nursery stock produced from registered rootstock and scion sources.

   Penn standard-certified—Department approved fruit tree nursery stock produced from registered scion sources and nonregistered seed sources or from Department-approved scion sources and nonregistered rootstock sources.

   Registered tree—A specific tree used as a seed, rootstock or scion source that has been routinely inspected and indexed by the Department and found to be free from detectable viruses.

   Scion block—A planting of registered trees, maintained by a commercial nurseryman, that serves as a source of propagating material.

   Seed block—A planting of registered trees, maintained by a commercial nurseryman, that serves as a source of seed.

   Stool bed—A planting of registered clonally propagated trees that are used exclusively for producing vegetatively propagated rootstocks.

   Virus-infected—The presence of a virus in a plant or plant part.

   Virus-like—A disorder of unknown cause displaying symptoms commonly associated with known virus diseases.



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