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United States Department of Agriculture
Agricultural Research Service
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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:
Calculated date first poll shd (CALCPOLSHD)
Download list of accessions evaluated for this trait
Definition:
Calculated date of the first pollen shed
Crop:
WALNUT
Category:
Phenological descriptors
Status:
Crop Germplasm Committee approved
Data Type:
Numeric descriptor
Maximum Length:
5
Responsible Site:
Natl. Germplasm Repository - Davis (
DAV
)
Studies or environments
JUGLANS.CHAR.WEO.04
6 Accessions
WALNUT.UCDAVIS.88
24 Accessions
WALNUT.UCDAVIS.89
26 Accessions
WALNUT.UCDAVIS.90
28 Accessions
WALNUT.UCDAVIS.91
21 Accessions
WALNUT.UCDAVIS.92
16 Accessions
WALNUT.UCDAVIS.96
1 Accessions
Distribution of Values for
Calculated date first poll shd (CALCPOLSHD)
Range
Number of Accessions
74 - 80
4
80 - 86
18
86 - 91
24
91 - 97
28
97 - 103
31
103 - 109
28
109 - 115
16
115 - 120
16
120 - 126
5
126 - 132
2