SUMMER SQUASH (Cucurbita pepo Duch.)

 

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 summer squash seed. 

 

II. Land requirements

Land to be used for seed production of summer squash 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 harvesting.

 

IV. Field Standards

A. General requirements

1. Isolation

Seed fields shall be isolated from the contaminants shown in the 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                                                                                 1000                 500

Fields of the same variety not conforming to varietal purity 

requirements for certification and from (Cucurbita moschata 

(Duch.) Poir.) cushaw (Cucurbita mixta Pang.), and winter 

squash (C. maxima Duch.)                                                                             1000                 500  


 

B. Specific requirements


        Factor                                                                                              Maximum permitted (%)*


                                                                                                                Foundation            Certified


      Offtypes                                                                                               0.10                    0.20    

 ** Plants affected by seed borne diseases                                                  0.10                    0.50 


  * Standards for offtypes shall be met at and after flowering and for seed borne disease at final inspection.

  ** Seed borne disease shall be: Cucumber Mosaic Virus (CMV), Watermelon Mosaic Virus.

 

V. Seed standards


        Factor                                                                                              Standards for each class


                                                                                                                Foundation            Certified


Pure seed (minimum)                                                                                98.0%                    98.0%

Inert matter (maximum)                                                                              2.0%                      2.0%

Other crop seeds (maximum)                                                                    None                     None

Weed seeds (maximum)                                                                            None                     None

Germination (minimum)                                                                             60%                       60%

Moisture (maximum)                                                                                 7.0%                      7.0%

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