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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:
Pea Aphid (PEA APHID)
Download list of accessions evaluated for this trait
Definition:
Percent of seedling survival after pea aphid damage. (Acrythosiphon pisum).
Crop:
ALFALFA
Category:
Insect descriptors
Status:
Crop Germplasm Committee approved
Data Type:
Numeric descriptor
Maximum Length:
5
Responsible Site:
Western Regional PI Station (
W6
)
Studies or environments
ALFALFA.PEAAPHID.84.MANG
54 Accessions
ALFALFA.PEAAPHID.85.MANG
250 Accessions
ALFALFA.PEAAPHID.86.MANG
161 Accessions
ALFALFA.PEAAPHID.87.MANG
332 Accessions
Distribution of Values for
Pea Aphid (PEA APHID)
Range
Number of Accessions
0 - 6.9
607
6.9 - 13.7
72
13.7 - 20.6
35
20.6 - 27.5
26
27.5 - 34.4
17
34.4 - 41.2
16
41.2 - 48.1
9
48.1 - 55
12
55 - 61.8
1
61.8 - 68.7
2