| 0 | PI 607897 | EL48 | Beta vulgaris L. subsp. vulgaris | Michigan, United States | W6 | | | 1999 | DEVELOPED | PRE 04/15/1999 | | | | | Breeding material | Monogerm O type line with resistance to Aphanomyces, Cercospora, Aphanomyces, and some resistance to Rhizoctonia. | 1578301 | PI 607897 |
| 1 | PI 546523 | 002/79 | Beta vulgaris L. subsp. maritima (L.) Arcang. | Aegean Islands, Greece | W6 |  | | 1990 | COLLECTED | | Rodes (Rodhos, Rhodes) Island | | | | Wild material | | 1441459 | PI 546523 |
| 2 | PI 540625 | WB 879 | Beta vulgaris L. subsp. maritima (L.) Arcang. | France | W6 | | Not Available | 1990 | COLLECTED | 08/23/1989 | Soil with cobbles, in cove around point from harbor, Port-De-Houet, 5km N of Val-Andre, Cotes-Du-Nord County. | 48.31666667, -2.31666667 | 3 | | Wild material | Plants variable, segregation pigmentation, seed poor on red plants. Population of 75. Twenty-six plants sampled. | 1435561 | PI 540625 |
| 3 | PI 504196 | Wild beet | Beta vulgaris L. subsp. maritima (L.) Arcang. | Italy | W6 | | | 1986 | COLLECTED | 07/04/1985 | Plants growing in full sun, in coarse dry sand and cobbles, by cliffs overlooking sea, 150m E of Capa Rizzuto, Calabria. | 38.88333333, 17.08333333 | 3 | | Wild material | Dry season. Bulk collection. Disease resistant. Drought and salt tolerant. | 1399132 | PI 504196 |
| 4 | PI 546409 | WB 185 | Beta vulgaris L. subsp. maritima (L.) Arcang. | England, United Kingdom | W6 | | Not Available | 1985 | COLLECTED | | Collected at Torpoint, Tamar, England. | | | | Wild material | Procumbent biennial | 1441345 | PI 546409 |
| 5 | PI 590862 | SLC129CMS (0166) | Beta vulgaris L. subsp. vulgaris | Utah, United States | W6 | | Not Available | 1983 | DONATED | 1983 | | | | | Breeding material | | 1157451 | PI 590862 |
| 6 | PI 590708 | US 22/3 | Beta vulgaris L. subsp. vulgaris | California, United States | W6 | | Not Available | 1981 | DONATED | 1981 | | | | | Cultivar | An obsolete commercial variety with high curly top resistance that was widely used in the western states during the late 1940's and early 1950's. | 1135453 | PI 590708 |
| 7 | PI 590679 | C01 | Beta vulgaris L. subsp. vulgaris | California, United States | W6 | | | 1979 | DONATED | 1979 | | | | | Breeding material | Moderately resistant to virus yellows. Moderately low curly top resistance. Multigerm, self-sterile. Good sucrose content. | 1127972 | PI 590679 |
| 8 | PI 590676 | NB1 (S20) | Beta vulgaris L. subsp. vulgaris | California, United States | W6 | | Not Available | 1979 | DONATED | 1979 | | | | | Breeding material | Long term inbred (20 generations of selfing) developed from NB1. Possesses resistance to bolting and curly top. | 1127957 | PI 590676 |
| 9 | PI 590661 | FC 701 | Beta vulgaris L. subsp. vulgaris | Colorado, United States | W6 | | Not Available | 1978 | DONATED | 1978 | | | | | Breeding material | Breeding line. Diploid (2n=2X=18). Resistant to rhizoctonia root rot. Moderate resistance to cercospora leaf spot. Mostly self sterile. Multigerm. Mostly pink hypoctyl (99.5%) easy bolting. | 1127537 | PI 590661 |
| 10 | PI 610268 | SLC 101 | Beta vulgaris L. subsp. vulgaris | California, United States | W6 | | Not Available | 1978 | DONATED | 1978 | | | | | Cultivar | Inbred SLC 101 monogerm is the original monogerm line derived from one monogerm plant found in Oregon in 1947. From this line after hybridization with different multigerm varieties were obtained all self-sterile, self-fertile strains, varieties, commerical hybrids and inbred lines in the USA, Canada, and in many European countries. | 1098758 | PI 610268 |
| 11 | PI 613200 | GW 059-47A | Beta vulgaris L. subsp. vulgaris | Colorado, United States | W6 | | | 1963 | DONATED | 1963 | | | | | Cultivated material | No further background information available. | 1095941 | PI 613200 |
| 12 | PI 613203 | GW 085-46R | Beta vulgaris L. subsp. vulgaris | Colorado, United States | W6 | | Not Available | 1963 | DONATED | 1963 | | | | | Cultivated material | No further background information available. | 1095952 | PI 613203 |
| 13 | PI 613210 | GW 304-50A | Beta vulgaris L. subsp. vulgaris | Colorado, United States | W6 | | Not Available | 1963 | DONATED | 1963 | | | | | Cultivated material | No further background information available. | 1095975 | PI 613210 |
| 14 | PI 613225 | GW 359-56A | Beta vulgaris L. subsp. vulgaris | Colorado, United States | W6 | | Not Available | 1963 | DONATED | 1963 | | | | | Cultivated material | No further background information available. | 1096013 | PI 613225 |
| 15 | PI 590580 | US 033 | Beta vulgaris L. subsp. vulgaris | Utah, United States | W6 | | | 1961 | DONATED | 1961 | | | | | Breeding material | Early multigerm curly-top resistant variety with relatively high sugar percentage. Intermediate degree of curly top resistance makes variety useful as a standard check in comparing other curly-top resistant varieties. | 1029128 | PI 590580 |
| 16 | PI 590586 | US 075 | Beta vulgaris L. subsp. vulgaris | California, United States | W6 | | | 1961 | DEVELOPED | PRE 1961 | | | | | Breeding material | Resistant to bolting accomplished by a series of severe selections. Has been grown extensively in California but is giving way rapidly to more superior yielding male-sterile hybrids. | 1029163 | PI 590586 |
| 17 | PI 590588 | KLEIN E (KLEINWANZLEBEN E) | Beta vulgaris L. subsp. vulgaris | Utah, United States | W6 | | | 1961 | DONATED | 1961 | | | | | Breeding material | Curly-top-susceptible variety used extensively as a standard check in tests for curly-top resistance. Grown widely in Europe and elsewhere as a commercial sugar beet variety. This particular seed lot is very vigorous yield type. | 1029178 | PI 590588 |
| 18 | W6 17102 | 'US 401' | Beta vulgaris L. subsp. vulgaris | Colorado, United States | W6 | | Not Available | 1995 | DEVELOPED | 1960 | | | | | Cultivar | Tetraploid strain of multigerm variety US 401. Leaf Spot and Aphanomyces resistant. Should be increased and evaluated as a pollinator in production of triploid hybrids, preferably monogerm hybrids using SLC 122MS and other male-sterile monogerm lines as seed bearers. | 1490419 | W6 17102 |
| 19 | Ames 2663 | SLC 133 | Beta vulgaris L. subsp. vulgaris | Utah, United States | W6 | | Not Available | 1983 | DEVELOPED | PRE 08/01/1983 | | | | | Cultivated material | | 1021496 | Ames 2663 |
| 20 | NSL 142033 | R and G OLD TYPE | Beta vulgaris L. subsp. vulgaris | California, United States | W6 | | Not Available | 1981 | DONATED | 1981 | | | | | Cultivar | Incre. from a 1942 Holly seed lot of RandG Old Type. Self- sterile, multigerm variety originally from Germany but reprod. in the U.S. for comm'l production. Susceptible to curly top and virus yellows. Moderately susceptible to Erwinia, powdery mildew, and bolting. Reputed to be similar to the primary sources from which very early curly top resistant varieties were selected. | 1135490 | NSL 142033 |