SNAPDRAGON  HYBRIDS

(Antirrhinun spp.Linn.)

I. Application and Amplification of General Seed Certification Standards

   A.  The General Seed Certification Standards are basic and, together with the specific standards constitute  

         the standards for certification of   Hybrid  snapdragon seeds. 

  B.   The  General Standards are amplified as follows to apply  specifically to the hybrids Snapdragon.

1. Eligibility requirements for certification

a. An inbred/  parental line to be eligible for certification shall be from a source that its identity may be assured 

    and approved by the certification   agency.

b. Hybrid seed to be eligible for certification shall be the progeny of two approved inbred/ /parental lines, one 

    of which  shall be made  sterile.

2. Classes and Sources of seed

a.  An inbred/ parental line shall be a relatively true breeding strain resulting from  self-pollination with selection 

    and/or developed through in-vitro culture.

b.  The foundation seed class shall consist of an approved male sterile line (genetic male sterility-apetaious 

     sterile line) to be used as a female parent and approved and approved inbred line to be used as male parent 

     for the purpose of producing hybrid seed.

c.  A male Sterile line shall be a monogenic recessive strain crying  genetic  male sterility, which sheds no viable 

     pollen and is maintained by the monogenic dominant heterozygous strain and is used  as  maintainer in 

     propagation blocks.

d. The certified class seed shall be hybrid seed to be planted for any use  except seed production 

    (*Applicable if male sterile line is used)

I. Land requirements

    Land to be used for seed production of  hybrid Snapdragon shall be free of volunteer plants.

III. Field Inspection

A.  Foundation and certification seeds

A minimum of three inspections shall be made as follows:

1. The first inspection shall be  made before  flowering in order to determine the isolation, volunteer plants, 

    outcrosses and  other relevant factors.

2. The second inspection shall be made during flowering / podding stage to check isolation, offtypes, fertile  

    segregants in seed parent and other  relevant factors.

3. The third inspection shall be made pod maturity and prior to harvesting to check offtypes, the designated 

    diseases and other relevant factors.

V. Field Standards

A. General requirements

1. Isolation

    Seed field of snapdragon hybrids shall be isolated from the contaminants shown in column 1 of the table below by the distances specified in columns 2 and 3 of the said table.

        Contaminants                                                                                   Minimum distance (meters)

                                                                                                                Foundation        Certified

            1                                                                                                         2                     3

Fields of other varieties  including commercial 

Hybrids of the same cultivar                                                                          600                  300

Fields of the same variety not conforming to 

varietal purity requirements for certification                                                    600                 300  

B. Specific requirements

        Factor                                                                                              Maximum permitted (%)*

                                                                                                                Foundation            Certified

            1                                                                                                        2                           3

      Offtypes  in seed parent                                                                        0.050                     0.10

      Offtypes in pollinator                                                                            0.050                     0.10

      Fertile segregants (Pollen shedding spikes  in seed parent                      0.050                     0.10

      Plants affected by designated diseases                                                  0.10                       0.20

    * Standard for offtypes  and fertile segregants (pollen shedding spikes) in seed parent  shall be met at and 

       after flowering and for designated diseases at final inspection.

**   Designated diseases shall be

Anthracnose (Colletotrichum antirhini &C. fuscum)

Blight:           (Phyllosticta antirhini 

V. Seed standards

        Factor                                                                                              Standards for each classes

                                                                                                                Foundation            Certified

Pure seed (minimum)                                                                                98.0%                    98.0%

Inert matter (maximum)                                                                              2.0%                      2.0%

Other crop seeds (maximum)                                                                     10/kg                     20/kg

Weed seeds (maximum)                                                                             5/kg                       10/kg

Germination (minimum)                                                                              70%                       70%

Moisture (maximum)                                                                                  8.0%                      8.0%

For vapour-proof containers (maximum)                                                    6.0%                     6.0%