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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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2.3.12
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Descriptor:
Basal Leaf Apex Ratio (BASLEAFAPR)
Download list of accessions evaluated for this trait
Definition:
Ratio of (distance from basal leaf apex to widest point) to total laminar length
Crop:
ECHINACEA
Category:
Morphological descriptors
Status:
Crop Germplasm Committee approved
Data Type:
Numeric descriptor
Maximum Length:
6
Responsible Site:
North Central Regional Plant Introduction Station (
NC7
)
Studies or environments
ECHINACEA.INC.AMES.2000
93 Accessions
ECHINACEA.INC.AMES.2002
27 Accessions
ECHINACEA.INC.AMES.2004
18 Accessions
Distribution of Values for
Basal Leaf Apex Ratio (BASLEAFAPR)
Range
Number of Accessions
0.1 - 0.7
118
0.7 - 1.2
14
1.2 - 1.8
0
1.8 - 2.3
0
2.3 - 2.9
0
2.9 - 3.5
0
3.5 - 4
0
4 - 4.6
0
4.6 - 5.1
0
5.1 - 5.7
1