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| ACCESSION | PLANT NAME | TAXONOMY | ORIGIN | GENEBANK | IMAGE | AVAILABILITY | RECEIVED | SOURCE TYPE | SOURCE DATE | COLLECTION SITE | COORDINATES | ELEVATION | HABITAT | IMPROVEMENT LEVEL | NARRATIVE | | |
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| 0 | PI 643446 | IAMF101 | Medicago sativa L. subsp. falcata (L.) Arcang. | Wisconsin, United States | W6 | | Not Available | 2006 | DEVELOPED | 09/2006 | | | | | Breeding material | Genetically broad based tetraploid (2n=4x=32) yellow-flowered alfalfa, pods range from falcata (sickle-shape) to single coiled. Developed by two cycles of recurrent phenotypic selection for persistence, autumn regrowth, and vigor from a broad based, yellow-flowered alfalfa germplasm collection. Parent plants were selected on Sept. 22, 1999 from a germplasm evaluation trial at Iowa St. Univ. Agronomy and Agric. Engineering Farm near Ames, IA that had been planted in spring 1997. Selection was based on yield performance, freedom from disease and insect pests, and autumn regrowth. Experimental falcata population IA-3018 was developed at Iawa State Univ by C.P. Wilsie in 1960's. Parental plants were intercrossed by hand in the greenhouse at Ames, IA during the winter of 1999-2000 and equal quantities of seed from each parent were bulked. Seeds were germinated in spring 2000 in the greenhouse, and approx. 1000 seedlings were transplanted to the field at the iowa State Univ Agronomy and Agric. Engineering Farm at Ames, IA in May 2000. In Sept. 2003, 56 plants were selected based on persistence, vigor, autumn regrowth, moved to the greenhouse, and intercrossed. Equal quantities of seed from each plant were bulked to form the Syn 1 generation of IAMF101. Syn 2 seed was produced in Idaho in 2004 and 2005. This falcata population has better fall growth compared with other falcata populations. | 1712480 | PI 643446 |
| 1 | PI 643447 | IAMF102 | Medicago sativa L. subsp. falcata (L.) Arcang. | Wisconsin, United States | W6 | | Not Available | 2006 | DEVELOPED | 09/2006 | | | | | Breeding material | Genetically broad based tetraploid (2n=4x=32) yellow-flowered alfalfa, pods that range from falcata (sickle-shaped) to single coiled. Developed from one cycle of selection. Germplasms 5291/88 and 5299/88 obtained from Institute of Agrobotany, Hungary. Experimental falcata populations IA-3018 developed at Iowa St. Univ. by C.P. Wilsie in 1960's. Lodgepole is naturalized falcata population found in the Grand River National Grassland near Lodgepole, SD. The SD 201 plant was tetraploid, developed by treating seed of the SD 201 germplasm with colchicine. The 32 parental genotypes were selected from among 104 genotypes that had been testcrossed to four elite alfalfa populations. Selections were based on testcross performance for yield in field trials at the Iowa St. Univ. Agronomy and Agric. Engineering Farm near Ames, IA and at the Iowa State Univ. Northeast Res. Farm near Nashua, IA from 2002 to 2003. Parents were intercrossed by hand without emasculation in the greenhouse during the winter 2003-2004. Equal quantities of seed were bulked form each parent to constitute the Syn 1 generation of the IAMF102 population. Syn 2 seed was produced in Idaho in 2004 and 2005. Has moderate frequency of 'creeping rooted' alfalfa. Source populations of the creeping rooted trait are PI 494661, PI 631579, andPI 631857. This germplasm has good first harvest dry matter yield. | 1712481 | PI 643447 |