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Effective Jan. 1, 2025, the U.S. National Plant Germplasm System will modify its SMTA acceptance policy to distinguish between propagative and non-propagative germplasm.
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USDA National Plant Germplasm System
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Descriptor:
GDU ANTHESIS F LAT40-49 (GDU-POLLEN-F_LAT40-49)
Download list of accessions evaluated for this trait
Definition:
Growing degree units (GDU or GDD) from planting to 50% anthesis in degrees farenheit. Data is taken at 40 to 49 degrees N or S latitude. This (86,50) system uses the equation ((Tmax+Tmin)/2)-50. Tmax to 86 maximum and Tmin to 50 minimum.
Crop:
MAIZE
Category:
Phenological descriptors
Status:
Crop Germplasm Committee approved
Data Type:
Numeric descriptor
Maximum Length:
5
Responsible Site:
North Central Regional Plant Introduction Station (
NC7
)
Studies or environments
MAIZE.DONOR.INITIAL.OBSERVATION
26 Accessions
MAIZE.INC.AMES.1999
2 Accessions
MAIZE.INC.AMES.2012.GEM.THESIS
5 Accessions
MAIZE.INC.AMES.2025.GEMS.GEMTEAM.PLANTING1
7 Accessions
MAIZE.NLB.PIONEER.JOHNSTON.2004
233 Accessions
MAIZE.NLB.PIONEER.JOHNSTON.2005
224 Accessions
MAIZE.NLB.PIONEER.JOHNSTON.2007
240 Accessions
MAIZE.PVP.CERTIFICATE
2 Accessions
MAIZE.UTILITY.PATENT
1 Accessions
Distribution of Values for
GDU ANTHESIS F LAT40-49 (GDU-POLLEN-F_LAT40-49)
Range
Number of Accessions
776 - 909
4
909 - 1042
1
1042 - 1174
1
1174 - 1307
1
1307 - 1440
48
1440 - 1573
268
1573 - 1706
216
1706 - 1838
115
1838 - 1971
40
1971 - 2104
18