RAT - TAIL RADISH (MUNGRA): Raphanus caudatus L.

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 rat-tail radish seed. 

II. Land requirements

Land to be used for seed production of rat-tail radish 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. 

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                                                                                 1600                1000

Fields of the same variety not conforming to 

varietal purity requirements for certification and  

radish (Raphanus sativus L.)                                                                         1600                 1000  

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 diseases at final inspection.

** Seed borne diseases shall be: 

     black rot: (Xanthomonas compestris pv. campestris (pamm.) Dawson); 

     black leg: (Leptosphaeria maculans (Desm. (Ces.&de Not).    

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)                                                                     5/kg                      10/kg

Weed seeds (maximum)                                                                            10/ kg                    20/kg

Germination (minimum)                                                                             70%                       70%

Moisture (maximum)                                                                                 6.0%                      6.0%

For vapour-proof containers (maximum)                                                    5.0%                     5.0%