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California Crop Improvement Association
California Crop Improvement Association
California Crop Improvement Association
University of California
California Crop Improvement Association

Meadow Foam Pre-variety Germplasm Standards in California

(Limnanthes spp.)

GENERAL STANDARDS -- The standards on this sheet are in part condensed and apply to tufted hairgrass. For greater detail and additional provisions, see the Pre-Variety Germplasm Standards.

APPLICATION -- Applications should be submitted electronically on CCIA’s website (http://ccia.ucdavis.edu) no later than three (3) weeks after planting.  New applicants should contact the CCIA office for instructions.

FIELD HISTORY -- Land must have no prior Meadowfoam production to produce G1 seed. Land must be out of Meadowfoam production for at least six years to produce G2 through G10 seed. Meadowfoam must be planted in distinct rows. Exceptions must be approved by the Seed Certification Office prior to planting.

ISOLATION -- Seed fields must be isolated from other pre-variety germplasm selections, varieties, or wild populations of Limnanthes spp. by the following distances:

Generation

G1

G2

G3-G10

Isolation requirement (any size field)

2 miles

1 mile

2640 feet

 

FIELD INSPECTION -- Include a seedling and a seed crop inspection.

Off-Types -- Every field should be rogued to remove any plants of another crop or variety, including volunteers. Pre-variety germplasm selections cannot always be differentiated at field inspection. When differences can be distinguished, the maximum mixture of other varieties or definite off-types permitted is as follows:

G1

G2

G3-G10

None

1:2,000

1:1,000

 

Weeds -- Fields must be free of any prohibited noxious weeds. Restricted noxious weeds and common weeds difficult to separate must be controlled. Prohibited and Restricted noxious weeds are listed in the California Seed Law/CA Code of Regulations/Sections 3854 and 3855. See California Seed Law - Prohibited and Restricted Noxious Weed List.

Fields may be refused certification due to unsatisfactory appearance caused by weeds, poor growth, poor stand, disease, insect damage, and any other condition which prevents accurate inspection or creates doubt as to identity of the variety.

SEED STANDARDS -- Minimum Sample Size – ½ pound.

Factor

G1

G2

G3-G10

Pure Seed (Minimum)

96.00%

96.00%

96.00%

Inert Matter (Maximum)

4.00%

4.00%

4.00%

Total Other Crop Seed (Maximum)

.10%

.25%

.50%

Weed Seed (Maximum)

.15%

.15%

.25%

Germination and Hard Seed (Minimum)

85.00%

85.00%

85.00%

Noxious Weed, St. Johnswort, Buckhorn plantain, Docks, or Sheep sorrel

None

None

None

 

Updated October 2016

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