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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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2.3.12
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Descriptor:
DELTA_FIRST CRACK (DELTA_FIRST CRACK)
Download list of accessions evaluated for this trait
Definition:
Days to first head crack minus day of transplanting. (e.g.100 days from transplanting to first head crack.
Crop:
BRASSICA
Category:
Morphological descriptors
Status:
Crop Germplasm Committee approved
Data Type:
Numeric descriptor
Maximum Length:
Comment:
Ref: IBPGR. 1990. Descriptors for Brassica and Raphanus. International Board for Plant Genetic Resources, Rome
Responsible Site:
Northeast Regional Plant Introduction Station (NE9) (
NE9
)
Studies or environments
NE9.BRASSICA.SC10
81 Accessions
Distribution of Values for
DELTA_FIRST CRACK (DELTA_FIRST CRACK)
Range
Number of Accessions
68.00000 - 75.80000
2
75.80000 - 83.60000
1
83.60000 - 91.40000
0
91.40000 - 99.20000
4
99.20000 - 107.00000
4
107.00000 - 114.80000
1
114.80000 - 122.60000
5
122.60000 - 130.40000
25
130.40000 - 138.20000
14
138.20000 - 146.00000
25