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California Crop Improvement Association
University of California
California Crop Improvement Association

Brome Pre-Variety Germplasm Standards in California

(Bromus carinatus, Bromus erectus, Bromus inermis & Bromus riparius)

GENERAL STANDARDS -- The standards on this sheet are in part condensed and apply to brome. 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 been free of Brome for five years to produce G1 seed; 2 years for G2 through G10 seed. Brome must be planted in distinct rows. Exceptions must be approved by the Seed Certification Office prior to planting.

ISOLATION -- Fields or portions of fields producing seed must be isolated the following distances:

Factor

G1

G2

G3

G4-G10

Less than 5 acres

900 feet

660 feet

330 feet

165 feet

More than 5 acres

900 feet

300 feet

165 feet

165 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

1:1,000

1:500

1:250

 

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)

90.00% 

90.00%

90.00%

Inert Matter (Maximum)

10.00%

10.00%

10.00%

Total Other Crop Seed

.10%

.10%

.50%

Weed Seed (Maximum)

.15%

.30%

.30%

Weed Seed, Group A, singly or combined* (Maximum)

None

None

27/lb

Germination and Hard Seed (Minimum)

85.00%

85.00%

85.00%

Noxious Weed

None

None

None

*Buckhorn plantain, Sorrel, Docks, Bedstraw

 

Updated October 2016

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