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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:
RESPONSE DAYLENGTH FLOWERING (DAY-RESPON)
Download list of accessions evaluated for this trait
Definition:
Time-to-flowering response in contrasting long vs short daylengths.
Crop:
AMARANTH
Category:
Phenological descriptors
Status:
Data Type:
Alpha/numeric descriptor
Maximum Length:
11
Comment:
The comment can include the difference in days between the time to flower in long-days and short-days.
Responsible Site:
North Central Regional Plant Introduction Station (
NC7
)
Studies or environments
AMARANTH.AMES.2012.GC.PHOTOPERIOD.A
10 Accessions
AMARANTH.TURRIZA.2014.CAMPECHE.MEX
14 Accessions
Distribution of Values for
RESPONSE DAYLENGTH FLOWERING (DAY-RESPON)
Code
Definition
Number of Accessions
Neutral
Similar days-to-flower in both long and short daylengths
5
Sensitive
Flowers sooner in short-days than in long-days
18
Sens-slight
Flowers slightly sooner in short days than in long-days
1