Select the tab for the type of search. Each tab has everything you need to do to perform that type of search.
(Results of more than 500 will not return images.)
This search will show only accessions that have material that may be requested, including those not seasonally available.
You may list accessions with separators (commas or semicolons, as shown below) or by entering them on separate lines, such as
PI 651794
PI 651649
PI 651650
When searching a range of accessions, use the Advanced Search tab with the Accession Identifier Range criterion.
The more information you provide, the better the search will be.
Scientific name (any part, no hybrid symbols)
Genebank
Country of Origin
Other search criteria:
If your results aren't what you expected, try using the Advanced Search tab and filling in more information.
Your query included:
All accessions
| ACCESSION | PLANT NAME | TAXONOMY | ORIGIN | GENEBANK | IMAGE | AVAILABILITY | RECEIVED | SOURCE TYPE | SOURCE DATE | COLLECTION SITE | COORDINATES | ELEVATION | HABITAT | IMPROVEMENT LEVEL | NARRATIVE | | |
|---|
| 0 | PI 451690 | Cargill North Temperate Zone Carribean | Zea mays L. subsp. mays | Iowa, United States | NC7 |  | | 1980 | DONATED | 11/1980 | | | | | Breeding material | Flint-dent and flint population altered from short to long day. Population with 94% recovery of tropical germplasm. Husk coverage tight. Cobs white. Kernels white with some yellow. Each of the six tropical inbreds was initially adapted to the Central Corn Belt though a backcross approach incorporating two backcrosses to tropical. The early USA and Canadian inbreds were the sources of earliness. A composite of the six adapted tropical inbreds was in turn crossed with each of the six tropical populations and a new population aggregate formed through intercrossing. Adaptation to the Central Corn Belt was regained through phenotypic recurrent selection. | 1346626 | PI 451690 |
| 1 | PI 451691 | Cargill North Temperate Zone Cateto | Zea mays L. subsp. mays | Iowa, United States | NC7 |  | | 1980 | DONATED | 11/1980 | | | | | Breeding material | Unimproved non-cornbelt flint population, altered from short to long day, cornbelt adaptation. Population with 94% recovery of Cateto flint germplasm. Husk coverage heavy. Cobs white. Kernels deep yellow to orange. All of the Argentine flint inbreds trace back to longtime open-pollinated varieties and are unadulterated by introduced germplasm. Four of these inbreds had previously been converted to earlier forms by a backcross approach where the early USA and Canadian inbreds served as sources of earliness. The other Argentine inbreds and the Cuarentin population have a late temperate zone maturity. The Brazilian populations are fully tropical. Temperate and tropical material were joined in a single population and this adapted to the Central Corn Belt through phenotypic recurrent selection. | 1346627 | PI 451691 |
| 2 | PI 451692 | Cargill North Temperate Zone Coroico | Zea mays L. subsp. mays | Iowa, United States | NC7 |  | | 1980 | DONATED | 11/1980 | | | | | Breeding material | Unimproved non-cornbelt, flour-flint flour population altered from short to long day, cornbelt adaptation. Population with 94% recovery of tropical germplasm. Stalks brittle. Ears slender with low kernel row numbers. Kernel colors white-yellow-red. Although the three Chavantes populations were presumably collected from the same Indian tribe, Chavantes, they differ considerably in maturity and gross appearance under Hawaiian growing conditions. Initially Red Chavantes was crossed with the source of earliness, Early Russian. During a series of three backcrosses to tropical, Red Chavantes was always involved and four additional representatives of this race were added at the second backcross. Black Chavantes was involved at the first backcross only. Interpollination among the different sources was practiced following each backcross. An adapted population was formed through phenotypic recurrent selection out of the third backcross generation. There is a lower than average tolerance to heat, drought, and high plant density. Best results are obtained where plant densities are kept below 40,000 plants per hectare. | 1346628 | PI 451692 |
| 3 | PI 451693 | Cargill North Temperate Zone Cuzco | Zea mays L. subsp. mays | Iowa, United States | NC7 |  | | 1980 | DONATED | 11/1980 | | | | | Breeding material | Unimproved non-cornbelt flour-flint population altered from short to long day, cornbelt adaptation. Population with 94% recovery of tropical germplasm. Husks very heavy and tight. Ears short and blocky. Cobs white and red. Kernels white to yellow. Initially Cuzco Manuel was crossed with the source of earliness, Minnesota A. Through a series of three backcrosses to tropical, various of the seven different Cuzco populations were used at each generation to give the resulting proportions. Interpollination among the different basic sources was practiced following each backcross. An adapted population was form through phenotypic recurrent selection out of the third backcross generation. Heavy, tight husks combined with stiffly upright ears leads to extensive ear rot and lowered germination unless pollination bags are removed early and harvest is timely. There is a strong tendency for barreness unless plant densities are kept below 40,000 plants per hectare. | 1346629 | PI 451693 |
| 4 | PI 451694 | Cargill North Temp Zone Mexican Dent | Zea mays L. subsp. mays | Iowa, United States | NC7 |  | | 1980 | DONATED | 11/1980 | | | | | Breeding material | Unimproved non-cornbelt dent population, altered from short to long day, cornbelt adaptation. Tropical germplasm recover of 94%. Cobs white. Kernels white, some yellow. Six of the tropical inbreds were initially adapted to the Central Corn Belt through a backcross approach incorporating two backcrosses to tropical. A composite of these six adapted tropical inbreds was in turn crossed with each of the other tropical entities and a new population aggregate formed through intercrossing. Adaptation to the Central Corn Belt was regained through phenotypic recurrent selection. | 1346630 | PI 451694 |