| 0 | PI 565281 | C49/2 | Beta vulgaris L. subsp. vulgaris | California, United States | W6 | | Not Available | 1993 | DEVELOPED | 02/25/1993 | | | | | Breeding material | Represents two additional cycles of selection from C49 for resistance to virus yellows, Erwinia root rot, powdery mildew, and individual root performance for sugar yield. Multigerm and self-sterile with fair resistance to curly top and bolting. | 1460252 | PI 565281 |
| 1 | PI 565282 | C54/2 | Beta vulgaris L. subsp. vulgaris | California, United States | W6 | | | 1993 | DEVELOPED | 02/25/1993 | | | | | Breeding material | Reselection from C54 for improved resistance to beet yellows virus, Erwinia root rot, and powdery mildew. Multigerm, self-sterile, moderately resistant to curly top and bolting with adaptation to California. Broadly based. | 1460253 | PI 565282 |
| 2 | PI 565286 | B883 | Beta vulgaris L. subsp. vulgaris | California, United States | W6 | | Not Available | 1993 | DONATED | 02/25/1993 | | | | | Breeding material | Increased from B883. Homozygous cyst nematode resistant line from I.R.S., Bergen op Zoom, The Netherlands. Multigerm. Self-fertile (Sf). Not fully pollen fertile. Very low vigor. Small canopy. Easy bolting. | 1460257 | PI 565286 |
| 3 | PI 564243 | C50 | Beta vulgaris L. subsp. vulgaris | California, United States | W6 | | | 1992 | DEVELOPED | PRE 11/1992 | | | | | Breeding material | Highly heterogeneous with 50% coming from B. maritima. Can be successfully used as source of resistance to rhizomania and virus yellows (beet yellows and beet western yellows viruses). Shown wide variability for reaction to most diseases of sugarbeet, including curly top virus, cercospora leafspot (Cercospora beticola), powdery mildew (Erysiphe polygoni), downy mildew (Peronospora farinosa), rust (Uromyces betae), and erwinia root rot (E. carotovora subsp. betavasculorum). | 1459214 | PI 564243 |
| 4 | PI 562595 | WB 1017 | Beta vulgaris L. subsp. maritima (L.) Arcang. | Maţrūḩ, Egypt | W6 | | | 1992 | COLLECTED | 06/27/1992 | Along bank of ditches, 1km N of Bela El Owywa. | 31.01666667, 31.03333333 | 15 | | Wild material | Bulk sample of 500 plants from 5000 sq meter area. Segregating uniformity. | 1457567 | PI 562595 |
| 5 | PI 552533 | F1013 | Beta vulgaris L. subsp. vulgaris | North Dakota, United States | W6 | | | 1991 | DEVELOPED | PRE 06/20/1991 | | | | | Breeding material | 167 accessions of the NC-7 Beta collection were screened for high sucrose concentration. High sucrose individuals from lines with above average sucrose were selected for 6 cycles. Segregates for pink and green hypocotyls and produces multigerm seed. Sucrose concentration was equal to Ultramono, and root yield was 80% of Ultramono | 1447505 | PI 552533 |
| 6 | PI 552534 | F1014 | Beta vulgaris L. subsp. vulgaris | North Dakota, United States | W6 | | | 1991 | DEVELOPED | PRE 06/20/1991 | | | | | Breeding material | 167 accessions of the NC-7 Beta collection were screened for high sucrose concentration. High sucrose individuals from lines with above average sucrose were selected for 6 cycles. Segregates for pink and green hypocotyls and produces multigerm seed. Sucrose concentration was equal to Ultramono, and rooty yield was 80% of Ultramono | 1447506 | PI 552534 |
| 7 | PI 555454 | F1011 | Beta vulgaris L. subsp. vulgaris | North Dakota, United States | W6 | | | 1991 | DEVELOPED | PRE 06/20/1991 | | | | | Breeding material | 167 accessions of the NC-7 Beta collection were screened for high sucrose concentration. High sucrose individuals from lines with above average sucrose were selected for 6 cycles. Hypocotyls pink. Seed multigerm. Sucrose concentration was 1.2% greater than Ultramono, a commercial hybrid. Root yield was 60% of Ultramono | 1450426 | PI 555454 |
| 8 | PI 560133 | C766-62 | Beta vulgaris L. subsp. vulgaris | California, United States | W6 | | Not Available | 1991 | DONATED | 03/09/1991 | | | | | Breeding material | Monogerm, self-fertile, green hypocotyl line. Poor monogerm (bigerm) and O-type traits. Moderately resistant to Erwinia, curly top, virus yellows and bolting. Susceptible to powdery mildew. Good GCA for sugar yield under virus yellows conditions | 1455105 | PI 560133 |
| 9 | PI 560134 | C312 | Beta vulgaris L. subsp. vulgaris | California, United States | W6 | | Not Available | 1991 | DONATED | 03/09/1991 | | | | | Breeding material | Similar to lines C301 through C309 extracted from popn-755. Monogerm, self-fertile, and segregates for hypocotyl color. Resistant to lettuce infectious yellows and adapted to Imperial Valley. Poor monogerm and O-type traits | 1455106 | PI 560134 |
| 10 | PI 546510 | 041/82 | Beta vulgaris L. subsp. maritima (L.) Arcang. | Greece | W6 | | | 1990 | DONATED | 09/27/1990 | | | | | Wild material | | 1441446 | PI 546510 |
| 11 | PI 546527 | S28/81 | Beta vulgaris L. subsp. maritima (L.) Arcang. | Sicilia, Italy | W6 |  | | 1990 | COLLECTED | | | | | | Wild material | | 1441463 | PI 546527 |
| 12 | PI 540560 | WB 811 | Beta vulgaris L. subsp. maritima (L.) Arcang. | France | W6 |  | | 1990 | COLLECTED | 08/08/1989 | In grass, gravel, sandy soil, along road D570, .5km from Lec Bunas, Cumarque County. | 43.30000000, 4.10000000 | 5 | | Wild material | Plants single type, population of 8. Three plants sampled. | 1435496 | PI 540560 |
| 13 | PI 540569 | WB 823 | Beta vulgaris L. subsp. maritima (L.) Arcang. | France | W6 |  | | 1990 | COLLECTED | 08/11/1989 | On N end of beach, sparsely scattered in limestone boulders, 2.5km N of St. Jean-De-Luz, Xibau Berria, Eromardie, Pyrennees Atlantiques County. | 43.25000000, -1.36666667 | 1 | | Wild material | Plants single type, similar to United Kingdom maritima, population of 15. Ten plants sampled. | 1435505 | PI 540569 |
| 14 | PI 540572 | WB 826 | Beta vulgaris L. subsp. maritima (L.) Arcang. | France | W6 | | | 1990 | COLLECTED | 08/12/1989 | Sandy soil, 1km from Mimizan Beach, up mouth of river, Landes County. | 44.13333333, -1.16666667 | 1 | | Wild material | Plants single type, only one plant, little seed set, some monogerm. | 1435508 | PI 540572 |
| 15 | PI 540576 | WB 830 | Beta vulgaris L. subsp. maritima (L.) Arcang. | France | W6 | | | 1990 | COLLECTED | 08/13/1989 | Sandy soil, around old oyster harbor, N at LeFour, Les Jacquets, Gironde County. | 44.43333333, -1.10000000 | 2 | | Wild material | Plants variable, population of 50, 12 plants sampled. Susceptible to leaf spot, one plant to mildew. | 1435512 | PI 540576 |
| 16 | PI 540612 | WB 866 | Beta vulgaris L. subsp. maritima (L.) Arcang. | France | W6 |  | | 1990 | COLLECTED | 08/20/1989 | Clay soil with cobbles, N of lighthouse, 14km SW of Point-1'Abbe. Point de Penmarch, Finistere County. | 47.46666667, -4.25000000 | 1 | | Wild material | Plants variable, segregation erect pigmentation, population of more than 500. Forty-two sampled. | 1435548 | PI 540612 |
| 17 | PI 518309 | WB 631 | Beta vulgaris L. subsp. maritima (L.) Arcang. | England, United Kingdom | W6 | | Not Available | 1988 | COLLECTED | 09/19/1987 | Bay, Bishopstone, East Sussex County. | 50.65000000, 0.05000000 | 3 | | Wild material | Plants variable, more than 50 sampled. | 1413245 | PI 518309 |
| 18 | PI 518440 | WB 762 | Beta vulgaris L. subsp. maritima (L.) Arcang. | England, United Kingdom | W6 |  | | 1988 | COLLECTED | 10/28/1987 | Coarse gravel on beach, Allhallows, Kent County. | 51.46666667, 0.65000000 | 5 | | Wild material | Plants variable, large, erect, more than 50 sampled. | 1413376 | PI 518440 |
| 19 | PI 504198 | Wild beet | Beta vulgaris L. subsp. maritima (L.) Arcang. | Italy | W6 | | Not Available | 1986 | COLLECTED | 07/04/1985 | Plants growing in full sun, in irrigated silt, only on fence line next to cement culvert, by Highway 180, 2000m NW of Cropani Marina, Calabria. | 38.93333333, 16.78333333 | 20 | | Wild material | Dry season. Bulk collection. | 1399134 | PI 504198 |
| 20 | PI 504234 | Wild beet | Beta vulgaris L. subsp. maritima (L.) Arcang. | Italy | W6 | | Not Available | 1986 | COLLECTED | 07/16/1985 | Plants growing in full sun, in fine dry sand on beach, Calla di Sassari, Sassari, Sardinia. | 41.00000000, 9.60000000 | 3 | | Wild material | Dry season. Bulk collection. Drought and salt tolerant. | 1399170 | PI 504234 |
| 21 | PI 504259 | Wild beet | Beta vulgaris L. subsp. maritima (L.) Arcang. | Italy | W6 | | | 1986 | COLLECTED | 07/22/1985 | Plants growing along fence line in full sun, in dry silt, 2000m E of Villaputzu, Cagliari, Sardinia. | 39.43333333, 9.53333333 | 40 | | Wild material | Dry season. Bulk collection. Plants erect and mature. Most seed shattered. | 1399195 | PI 504259 |
| 22 | PI 504261 | Wild beet | Beta vulgaris L. subsp. maritima (L.) Arcang. | Italy | W6 | | | 1986 | COLLECTED | 07/24/1985 | Plants growing in partial and full sun, in fine dry gravel, 200m W of Libo del Sole, Sassari, Sardinia. | 40.88333333, 9.63333333 | 10 | | Wild material | Dry season. Bulk collection. Plants mature. Most seed shattered. Drought tolerant. | 1399197 | PI 504261 |
| 23 | PI 546411 | PI 293220-39 | Beta vulgaris L. subsp. maritima (L.) Arcang. | England, United Kingdom | W6 | | Not Available | 1985 | COLLECTED | | Collected at Mewstone-Wembury, England. | | | | Wild material | Composite of seed from 10 B. vulgaris plants. Procumbent annual. | 1441347 | PI 546411 |
| 24 | PI 546420 | WB 252 | Beta vulgaris L. subsp. maritima (L.) Arcang. | Greece | W6 |  | | 1985 | COLLECTED | 06/28/1978 | Near Thessaloniki | | | | Wild material | | 1441356 | PI 546420 |
| 25 | PI 612768 | AT3993-5 | Beta vulgaris L. subsp. vulgaris | Utah, United States | W6 | | | 1983 | DONATED | 1983 | | | | | Uncertain improvement status | | 1158647 | PI 612768 |
| 26 | PI 590582 | US 056/2 | Beta vulgaris L. subsp. vulgaris | Utah, United States | W6 | | | 1961 | DONATED | 1961 | | | | | Breeding material | Principal variety grown in Imperial Valley of California about 1951 to 1958. Non-bolting behavior makes possible planting in Sept. and harvest the next Spring or early Summer. | 1029136 | PI 590582 |
| 27 | PI 590583 | US 035 | Beta vulgaris L. subsp. vulgaris | Utah, United States | W6 | | | 1961 | DONATED | 1961 | | | | | Breeding material | From a very rigid selection in sugar percentage. Hence, recognized as the first high sugar variety which also possesses a high degree of curly-top resistance. | 1029140 | PI 590583 |
| 28 | W6 21681 | G062 | Beta vulgaris L. subsp. maritima (L.) Arcang. | Greece | W6 |  | | 1999 | COLLECTED | 08/1999 | Seashore in Nidri on Lefkas Island near Lefkada/Nikiana. | 38.70166667, 20.70833333 | 1 | | Wild material | | 1583545 | W6 21681 |
| 29 | Ames 8447 | Thurles I | Beta vulgaris L. subsp. maritima (L.) Arcang. | Ireland | W6 |  | | 1988 | COLLECTED | | | | | | Wild material | | 1043783 | Ames 8447 |