Temperate Vegetables

SEED PRODUCTION

SEED CERTIFICATION STANDARDS
Field Inspection

• A minimum of three inspections should be made.
• The first before heads are formed in heading types, and before full grown stage of non-heading types.
• The second inspection when heads have formed in heading types and at full grown stage of non-heading types
• The third one should be at flowering stage.

A. Field standards
a. General requirement
Isolation distance

Contaminants	Minimum distance (m)
	Foundation Seed	Certified Seed
Fields of other varieties	50	25
Fields of same variety not confirming to varietal purity requirements and wild type	50	25

b. Specific requirements

Factor	Maximum permitted percentage
	Foundation Seed	Certified Seed
Off-type	0.10	0.20
Plants affected by seed borne diseases	0.10	0.50
Objectionable weed plants	0.10	0.20

B. Seed Standards

Factors	Standards for each class
	Foundation Seed	Certified Seed
Pure seed (minimum %)	98	98
Inert matter (maximum)%	2	2
Other crop seeds (maximum )%	-	-
Total Weed seed (maximum )Number/ kg	5	10
Objectionable weed seeds (maximum) Number/ kg	2	5
Other distinguishable varieties (maximum) Number/ kg	10	2
Germination (minimum ) %	70	70
Moisture (maximum ) %	8	8
For vapour proof containers (maximum) %	6	6