Guar
Land Requirements
A crop will not be eligible for certification if planted where guar, other than a certified crop of the same variety, has grown during the previous three years.
Field Inspection
Fields shall be inspected at least once prior to harvest, preferably after pods are well developed
Field Standards
General Requirements
Unit of Certification
The unit of certification shall be a field, but a portion of a field may be approved provided the discarded portion can be harvested separately and is eliminated from certification.
Isolation
To be eligible for certification, a seed field must be isolated from fields of any other variety or uncertified fields of the same variety as follows:
| Class: Foundation | Class: Registered | Class: Certified |
|---|---|---|
| 330 | 330 | 165 |
Specific Requirements
| Factor | Maximum permitted in each class: Foundation | Maximum permitted in each class: Registered | Maximum permitted in each class: Certified |
|---|---|---|---|
| Other varieties:Variety | None | 1:10,000 | 1:1,000 |
| Other crops ¹ | None | None | 1:2,000 |
| Noxious weeds ¹ | None | None | None |
| Total disease | 1.00% | 2.00% | 5.00% |
1Crops and/or noxious weeds producing seed that is similar in size to guar and cannot be cleaned from the seed by regular cleaning methods
Referee Sample
A representative sample of at least two pounds as the seed is to be sold shall be submitted to the Association for laboratory analysis.
Seed Standards
General Seed Standards
Foundation, Registered and Certified seed shall meet the following general standards except for: Certified bromegrass seed which may contain not more than three percent alfalfa, alsike clover, white clover, red clover or their combinations.
| Factor | Maximum permitted in each class: Foundation | Maximum permitted in each class: Registered | Maximum permitted in each class: Certified |
|---|---|---|---|
| Weed Seed (maximum)1 | 0.10% | 0.30% | 0.50% |
| Prohibited weeds (maximum)2 | None | None | None |
| Total other crop seed (maximum) | 0.20% | 1.00% | 2.00% |
| Other varieties (maximum) | 0.10% | 1.00% | 2.00% |
| Other kinds (maximum) | 0.10% | 0.10% | 0.25% |
| (For forage use) (maximum) | 0.10% | 0.10% | 0.50% |
1Certified grass seed shall contain not more than 0.1 percent cheat.
2See Section XLI P, also, Texas blueweed (Helianthus ciliaris), dock (Rumex spp.), ox-eye daisy (Chrysanthemum leucanthemum), red or sheep sorrel Rumex acetosella), purple nightshade (Solanum elaeagnifolium), horsenettle (Solanum carolinense), and wild mustard (Brassica kaber).
Specific Seed Standards
| Factor | Standards for each class: Foundation | Standards for each class: Registered | Standards for each class: Certified |
|---|---|---|---|
| Pure seed (minimum) | 98.0% | 98.0% | 98.0% |
| Inert matter (maximum) | 2.0% | 2.0% | 2.0% |
| Weed seed (maximum) | None | 0.05% | 0.1% |
| Prohibited weeds (maximum) ¹ | None | None | None |
| Other kinds including other varieties (maximum) | None | 0.1% | 0.2% |
| Other varieties (maximum) | None | 0.05% | 0.1% |
| Total germination and hard seed (minimum) | N.S. ² | 85.00% | 85.00% |
1See Section XLI P.
2No standards