| 0 | PI 536531 | VERY FALL DORMANT POPULATION | Medicago sativa L. subsp. sativa | New Mexico, United States | W6 | | | 1989 | DEVELOPED | PRE 11/15/1989 | | | | | Breeding material | Germplasm source for basic studies related to genetic diversity, heterozygosity, heterosis and development of a Medicago falcata population (PI 198) | 1431467 | PI 536531 |
| 1 | PI 536532 | LADAK POPULATION | Medicago sativa L. subsp. sativa | New Mexico, United States | W6 | | | 1989 | DEVELOPED | PRE 11/15/1989 | | | | | Breeding material | Historical germplasm source for basic studies related to genetic diversity, heterozygosity, and heterosis (Developer-PI 198) | 1431468 | PI 536532 |
| 2 | PI 536533 | MEDICAGO VARIA POPULATION | Medicago sativa L. subsp. sativa | New Mexico, United States | W6 | | | 1989 | DEVELOPED | PRE 11/15/1989 | | | | | Breeding material | Historical germplasm source for basic studies related to genetic diversity, heterozygosity, and heterosis (Developer-PI 198) | 1431469 | PI 536533 |
| 3 | PI 536534 | CHILEAN POPULATION | Medicago sativa L. subsp. sativa | New Mexico, United States | W6 | | | 1989 | DEVELOPED | PRE 11/15/1989 | | | | | Breeding material | Historical germplasm source for basic studies related to genetic diversity, heterozygosity, and heterosis (Developer-PI 198) | 1431470 | PI 536534 |
| 4 | PI 536535 | PERUVIAN POPULATION | Medicago sativa L. subsp. sativa | New Mexico, United States | W6 | | | 1989 | DEVELOPED | PRE 11/15/1989 | | | | | Breeding material | Historical germplasm source for basic studies related to genetic diversity, heterozygosity, and heterosis (Developer-PI 198) | 1431471 | PI 536535 |
| 5 | PI 536536 | INDIAN POPULATION | Medicago sativa L. subsp. sativa | New Mexico, United States | W6 | | | 1989 | DEVELOPED | PRE 11/15/1989 | | | | | Breeding material | Historical germplasm source for basic studies related to genetic diversity, heterozygosity, and heterosis (Developer-PI 198) | 1431472 | PI 536536 |
| 6 | PI 536537 | TURKISTAN POPULATION | Medicago sativa L. subsp. sativa | New Mexico, United States | W6 | | | 1989 | DEVELOPED | PRE 11/15/1989 | | | | | Breeding material | Historical germplasm source for basic studies related to genetic diversity, heterozygosity, and heterosis (Developer-PI 198) | 1431473 | PI 536537 |
| 7 | PI 536538 | FLEMISH POPULATION | Medicago sativa L. subsp. sativa | New Mexico, United States | W6 | | | 1989 | DEVELOPED | PRE 11/15/1989 | | | | | Breeding material | Historical germplasm source for basic studies related to genetic diversity, heterozygosity, and heterosis (Developer-PI 198) | 1431474 | PI 536538 |
| 8 | PI 536539 | AFRICAN POPULATION | Medicago sativa L. subsp. sativa | New Mexico, United States | W6 | | | 1989 | DEVELOPED | PRE 11/15/1989 | | | | | Breeding material | Historical germplasm source for basic studies related to genetic diversity, heterozygosity, and heterosis (Developer-PI 198) | 1431475 | PI 536539 |