Oregon Administrative Rules › Chapter 603 - DEPARTMENT OF AGRICULTURE › Division 51 - PRODUCE STANDARDS › Section 603-051-0856 - Definitions

Current through Register Vol. 63, No. 7, July 1, 2024
As used in OAR 603-051-0855 to 603-051-0859, unless the context
				requires otherwise:
(1) "Block" means
			 a contiguous grouping of plants separated by at least 10-feet from other
			 contiguous groupings of plants.
(2)
			 "Clean cultivation" means the site is bare earth or is planted with a grass
			 (Gramineae) or another crop approved in writing by the Department in which
			 broad-leaved weeds are actively controlled.
(3) "Department" means the Oregon Department
			 of Agriculture.
(4) "G1" means the
			 original plants (nuclear materials) that have tested negative in the most
			 extensive battery of virus tests available, and subsequently maintained in
			 isolation to prevent (re)infection. Production and maintenance of G1 material
			 must be in within a system approved by USDA-APHIS or its official
			 designee.
(5) "G2" means plant
			 material that is propagated from G1 stock and maintained under the specific
			 conditions outlined in OAR 603-051-0857 to prevent (re)infection.
(6) "G3" means plant material that is
			 propagated from G1 or G2 stock to increase the amount of source material
			 available for producing virus-tested certified nursery stock. G3 plants must be
			 maintained under the specific conditions outlined in OAR 603-051-0857 to
			 prevent (re)infection.
(7) "G4"
			 means plant material that is propagated from G1, G2, or G3 stock that will be
			 distributed for sale. When using seed for G4 rootstock production, the source
			 of seed must be approved by the Department.
(8) "Index" means to determine virus
			 infection by means of inoculation from the plant to be tested to an indicator
			 plant or by other scientifically acceptable means of detection.
(9) "Indicator Plant" means any herbaceous or
			 woody plant used to index or determine virus infection.
(10) "Off-Type" means different from the
			 cultivar as stated on the application for certification.
(11) "Oregon Certified Nursery Stock" means
			 G4 plant materials including nursery-grown seedlings, clonal root-stocks
			 originating from registered G2 or G3 trees, nursery-grown trees propagated by
			 using top-stock from registered G2 or G3 trees, and rootstock originating from
			 registered G2 or G3 trees, but is limited to the genera Chaenomeles, Cydonia,
			 Malus, Prunus, and Pyrus.
(12)
			 "Oregon Certified Seed" means seed produced on registered G1, G2, or G3 seed
			 trees.
(13) "Registered Tree" means
			 a tree or clonal planting that has a registration number assigned to it by the
			 Department, and that has been inspected and tested in accordance with the
			 provisions of OAR 603-051-0855 to 603-051-0859.
(14) "Scion-Block" means a planting of
			 registered G2 or G3 trees, which serves as a source of scionwood for the
			 propagation of Oregon Certified Nursery Stock.
(15) "Seed-Block" means a planting of
			 registered G2 or G3 seed trees, which serves as a source of seed for producing
			 rootstock used in the propagation of Oregon Certified Nursery Stock.
(16) "Stool Bed" means a clonal planting of
			 self-rooted registered G2 or G3 trees for the specific purpose of producing
			 vegetatively propagated rootstock used in the propagation of Oregon Certified
			 Nursery Stock.
(17) "Virus" means
			 virus and virus-like pathogens including phytoplasmas, viroids, and graft
			 transmissible agents.
(18) "Virus
			 Infected" means the presence of a harmful virus in a plant or plant
			 part.
(19) "Virus-Like" means
			 either a genetic disorder or nontransmissible entity.
(20) "Tissue culture" means a general term
			 for the cultivation of plants (cells, tissues, or organs) under aseptic
			 conditions in a synthetic medium in vitro. It also refers to the cultures
			 themselves.
(21) "Tested" means
			 having been subjected to an official examination, other than visual, to
			 determine if pests are present or to identify pests.
Stat. Auth.: ORS 561, 571 & 632
Stats. Implemented: ORS 561, 571 & 632