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SEED CERTIFICATION IN TOMATO

SEED CERTIFICATION IN TOMATO (Lycopersicon esculentum Mill.)

I. Application and Amplification of General Seed Certification Standards The General Seed Certification Standards are basic, and together with the following specific standards constitute the standards for certification of tomato seed.

II. Land Requirements Land to be used for seed production of tomato shall be free of volunteer plants.

III. Field inspection A minimum of three inspections shall be made, the first before flowering, the second during flowering and fruiting stage and the third at mature fruit stage and prior to harvesting.

IV. Field Standards

A. General Requirements

1. Isolation
Seed fields shall be isolated from the contaminants shown in column 1 of the Table below by the distances specified in column 2 and 3 of the said Table.
 

Contaminants

Maximum Distance (Meters)  

Foundation

Certified

1

2

3

Fields of other varieties

50

25

Fields of the same variety not conforming to varietal purity requirements for certification

50

25
 


B. Specific Requirements

Factor

Maximum Permitted (%)*

Foundation

Certified

Off types

0.10

0.20

**Plants affected by seed borne disease

0.10

0.50
 

*Maximum permited at final inspection.
**Seed borne disease shall be: Early blight (Alternaria solani Sorauer.)

Leaf spot (Stemphylium solani Weber.)
Tobacco Mosiac Virus (TMV)

V. Seed Standards

Factor

Standard for each class

Foundation

Certified

1

2

3

Pure seed (minimum)

98.0%

98.0%

Inert matter (maximum)

2.0%

2.0%

Other crop seeds (maximum)

5/kg

10/kg

Weed seeds (maximum)

None

None

Germination (minimum)

70%

70%

Moisture (maximum)

8.0%

8.0%

For vapour-proof containers (maximum)

6.0%

6.0%