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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 608764 | B55 | Zea mays L. subsp. mays | Iowa, United States | NC7 |  | | 1998 | DEVELOPED | | | | | | Breeding material | B55 is a selection from the single cross Oh45 x W92 that was released in 1963. The plant is large with a big ear and good pollen production. It has intermediate resistance to first brood European corn borer (Ostrinia nubilalis). Hybrids with B55 usually have above-average yield, satisfactory root and stalk strength, but slow ear drying. Maturity classification is AES700. B55 was developed in a research program and evaluated extensively in hybrid combinations. It was released in 1963 because of its potential value in seed production programs and further use in breeding programs. | 1003216 | PI 608764 |
| 1 | PI 603939 | B42 | Zea mays L. subsp. mays | Iowa, United States | NC7 |  | | 1998 | DEVELOPED | 1960 | | | | | Breeding material | Developed in a research program and evaluated extensively in hybrid combinations. It was released in 1960 because of its potential value in seed production programs and further use in breeding programs. The inbred plant gives a low seed yield and sparse pollen production. It has an intermediate level of resistance to the first brood of the European corn borer, Ostrinia nubilalis (Hubner). It contributes high yield to hybrids but does not contribute satisfactory root and stalk strength. Maturity classification is AES700. | 1003211 | PI 603939 |