Accession details
Passport data and everything else
CIMMYTMA 18846
Accession number
CIMMYTMA 18846
Holding institute
Institute code
MEX002
Acquisition Date
December 5, 1997
Provenance of material
Biological status of accession
Traditional cultivar/Landrace
Type of germplasm storage
Medium term seed collection
Long term seed collection
Curation type
Fully curated
Availability for distribution
Available for distribution
ITPGRFA MLS
Accession is part of the Multi-lateral system of ITPGRFA
Taxonomy provided to Genesys
Genus
Zea
Specific epithet
Scientific name
Zea mays L. subsp. mays L.
Crop
maize
Crop name
Maize
Matched GRIN taxon
Current GRIN taxon
Accession names
Accession name
COAH 66
Other identifier
MEX 1350
Other identifier
MAIZ DE ALLENDE
Other identifier
GID 256828
Other identifier
NRC 1708
Other identifier
COAHUI 49
Other identifier
COAH,66
Collecting number
COAH 66
Associated Datasets
Collecting information
Provenance of material
Collecting date of sample
February 3, 1952
Collecting source
Field
Collecting number
COAH 66
Collecting institute name
Oficina de Estudios Especiales
Latitude of collecting site
28.333333
Longitude of collecting site
-100.85
Elevation of collecting site
387
Climate at origin
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Minimum temperature [°C] | 4.7 | 7.3 | 10.3 | 15.4 | 19.1 | 22.6 | 23.3 | 22.8 | 20.2 | 15.6 | 9.8 | 6 |
| Mean temperature [°C] | 11.3 | 14.3 | 17.9 | 22.8 | 26.1 | 29.4 | 30.4 | 29.9 | 26.9 | 22.4 | 16.7 | 12.6 |
| Maximum temperature [°C] | 18 | 21.4 | 25.5 | 30.3 | 33.1 | 36.3 | 37.5 | 37 | 33.6 | 29.3 | 23.7 | 19.3 |
| Monthly precipitation [mm] | 16 | 18 | 14 | 33 | 66 | 50 | 34 | 55 | 77 | 45 | 16 | 15 |
Bioclimatic variables
Annual mean temperature [°C]
21.7
Mean diurnal range (mean of monthly (max temp - min temp))
14
Isothermality (bio2/bio7) (* 100)
0.4
Temperature seasonality (standard deviation *100)
66.8
Max temperature of warmest month [°C]
37.5
Min temperature of coldest month [°C]
4.7
Temperature annual range (bio5-bio6) [°C]
32.8
Mean temperature of wettest quarter [°C]
26.4
Mean temperature of driest quarter [°C]
13.5
Mean temperature of warmest quarter [°C]
29.9
Mean temperature of coldest quarter [°C]
12.7
Annual precipitation [mm]
439
Precipitation of wettest month [mm]
77
Precipitation of driest month [mm]
14
Precipitation seasonality (coefficient of variation)
57
Precipitation of wettest quarter [mm]
177
Precipitation of driest quarter [mm]
47
Precipitation of warmest quarter [mm]
139
Precipitation of coldest quarter [mm]
49
Accessions with similar climatic properties
Georeferenced accesions in Genesys are linked to their climate data based on worldclim.org datasets. Genesys will try to find similar georeferenced accessions that match the basic climatic parameters: annual mean temperature, seasonality and rainfall.
Passport Data Completeness Index
PDCI score of this accession is 9 of 10.0. Read about Passport Data Completeness Index
GENUS
120
SPECIES
80
SPAUTHOR
5
SUBTAXA
40
SUBTAUTHOR
5
CROPNAME
45
ACQDATE
10
SAMPSTAT
80
DONORCODE
0
DONORNUMB
0
OTHERNUMB
35
DUPLSITE
30
STORAGE
15
DONORNAME
20
DUPLINSTNAME
0
ACCEURL
40
MLSSTAT
15
ORIGCTY
80
COLLSITE
0
LATITUDE
40
LONGITUDE
40
ELEVATION
15
COLLDATE
30
BREDCODE
0
ANCEST
0
COLLSRC
50
ACCENAME
50
COLLNUMB
40
COLLCODE
0
COLLNAME
15
Metadata
UUID
urn:uuid:bb58b3e7-6327-4c51-8381-695ec2940068
Last updated
February 3, 2026
Created
Date not provided