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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:
DAYS TO FIRST FLOWERING (FIRSTFLOW1)
Download list of accessions evaluated for this trait
Definition:
Days to first flowering measured in days after transplanting to field.
Crop:
CALENDULA
Category:
Phenological descriptors
Status:
Crop Germplasm Committee approved
Data Type:
Numeric descriptor
Maximum Length:
3
Responsible Site:
North Central Regional Plant Introduction Station (
NC7
)
Studies or environments
CALENDULA.OBS.AMES.2007.AVERAGES
68 Accessions
Distribution of Values for
DAYS TO FIRST FLOWERING (FIRSTFLOW1)
Range
Number of Accessions
8 - 10
2
10 - 13
9
13 - 15
14
15 - 17
10
17 - 20
7
20 - 22
7
22 - 24
5
24 - 26
8
26 - 29
5
29 - 31
3