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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:
Head to stem ratio (HEAD TO STEM RATIO)
Download list of accessions evaluated for this trait
Definition:
Head to stem ratio. Derived by dividing the head number value by the stem value. Numbers greater than 1.0 indicates possibility of multiple heads per stem.
Crop:
GRASS-COOLSEASON
Category:
Morphological descriptors
Status:
Data Type:
Numeric descriptor
Maximum Length:
5
Responsible Site:
Western Regional PI Station (
W6
)
Studies or environments
GRASS.IMAGE.2010.ERAGROSTIS.TEF.CFERRY
368 Accessions
Distribution of Values for
Head to stem ratio (HEAD TO STEM RATIO)
Range
Number of Accessions
.24 - .41
4
.41 - .59
2
.59 - .76
16
.76 - .94
67
.94 - 1.11
215
1.11 - 1.28
37
1.28 - 1.46
18
1.46 - 1.63
5
1.63 - 1.81
3
1.81 - 1.98
2