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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:
Total Alkaloids (TOTALALKA)
Download list of accessions evaluated for this trait
Definition:
Percent distribution of total alkaloids in green, freeze-dried lamina
Crop:
TOBACCO
Category:
Chemical composition descriptors
Status:
Data Type:
Numeric descriptor
Maximum Length:
6
Responsible Site:
US Nicotiana Germplasm Collection (
TOB
)
Studies or environments
TOBACCO.SPECIES.ALKALOIDS_F.86
52 Accessions
TOBACCO.SPECIES.ALKALOIDS_G.84
44 Accessions
Distribution of Values for
Total Alkaloids (TOTALALKA)
Range
Number of Accessions
0.07 - 2.93
28
2.93 - 5.8
18
5.8 - 8.66
14
8.66 - 11.52
1
11.52 - 14.39
5
14.39 - 17.25
4
17.25 - 20.11
1
20.11 - 22.97
0
22.97 - 25.84
1
25.84 - 28.7
2