Information on Other States

Field planting equivalency for states that raise seed potatoes

YEAR IN FIELD
Agency1 12 2 3 4 5 6 7 8 9
Alaska G1 G2 G3 G4 G5 G6 G7 G8
California G1 G2 G3 G4 G5
Colorado G1 G2 G3 G4 G5 G6
Idaho FY1 FY2 FY3 FY4 FY5 FY6
Maine FY1 FY2 FY3 FY4 FY5 FY6
Michigan6 FY1 FY2 FY3 FY4 FY5 FY5
Minnesota G1 G2 G3 G4 G5 G5 C3
Montana N G1 G2 G3 G4

Nebraska

Wyoming

N G1 G2 G3 G4 G5  
Nevada N G1 G2 G3 G4 G5
New York4 N1 N2 N3 G1 G2 G3 G4 G5 G6
North Dakota N G1 G2 G3 G4 G5 C
Oregon N G1 G2 G3 G4 G5
Utah N (G1) G2 G3 G4 G5 G6
Washington5 N G1 G2 G3 G4 G5
Wisconsin FY1 FY2 FY3 FY4 FY5 FY6 C
Canada PE E1 E2 E3 E4 F C
(G1) (G2) (G3) (G4) (G5) (G6) (G7)

1    The purpose of this table is to express equivalency of terms used by various certification agencies for seed potatoes harvested from a series of successive field plantings.  For specific criteria relating to disease tolerances and other requirements, the reader is referred to the certification regulations of the agency in question.

2    The first field planting utilizes laboratory-tested stocks which may be tissue-cultured plantlets, greenhouse-produced minitubers, stem cuttings, or line selections.  Contact agencies for detail as to types of stocks planted in their programs.

3     Term used by agency for seed potatoes for a particular year in the field: C = Certified, E = Elite, F = Foundation, G = Generation, N = Nuclear, PE = Pre-elite.