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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 | | |
|---|
| 0 | PI 608769 | BSCB7 | Zea mays L. subsp. mays | Iowa, United States | NC7 |  | | 1998 | DEVELOPED | | | | | | Breeding material | BSCB7 (Iowa Corn Borer Synthetic No. 7), BSCB8 (Iowa Corn Borer Synthetic No. 8), and BSCB6 [Iowa Corn Borer Synthetic No. 6 (PI 550453; Crop Sci. 11:140-141)] are yellow dent breeding populations developed after three cycles of recurrent selection for resistance to first brood of European corn borer (Ostrinia nubilalis) in Pennsylvania Intermediate Synthetic, Pennsylvania Late Synthetic, and Pennsylvania Early Synthetic, respectively. The Pennsylvania Synthetics were developed by Dr. Wernham, Pennsylvania State University, in a program of selection for resistance to northern corn leaf blight. Originally, there was only one synthetic, but selection for maturity resulted in the three synthetics. Information on source materials is not complete, but the following inbred lines were included: A, A71, C103, K155, NC34, Oh04, Oh26, Oh28, Oh40B, W23, L317, Os420, WF9, and M14. | 1002645 | PI 608769 |
| 1 | PI 608770 | BSCB8 | Zea mays L. subsp. mays | Iowa, United States | NC7 |  | | 1998 | DEVELOPED | | | | | | Breeding material | BSCB8 (Iowa Corn Borer Synthetic No. 8), BSCB7 (Iowa Corn Borer Synthetic No. 7), and BSCB6 [Iowa Corn Borer Synthetic No. 6 (PI 550453; Crop Sci. 11:140-141)] are yellow dent breeding populations developed after three cycles of recurrent selection for resistance to first brood of European corn borer (Ostrinia nubilalis) in Pennsylvania Late Synthetic, Pennsylvania Intermediate Synthetic, and Pennsylvania Early Synthetic, respectively. The Pennsylvania Synthetics were developed by Dr. Wernham, Pennsylvania State University, in a program of selection for resistance to northern corn leaf blight. Originally, there was only one synthetic, but selection for maturity resulted in the three synthetics. Information on source materials is not complete, but the following inbred lines were included: A, A71, C103, K155, NC34, Oh04, Oh26, Oh28, Oh40B, W23, L317, Os420, WF9, and M14. | 1002651 | PI 608770 |
| 2 | PI 550446 | Iowa Two-Ear Synthetic No. 1 | Zea mays L. subsp. mays | Iowa, United States | NC7 |  | | 1971 | DEVELOPED | 1967 | | | | | Breeding material | All lines in synthetic have 2 ears per plant and good combining ability. | 1445382 | PI 550446 |