CHINESE CABBAGE (HEADING& NON-HEADING)

(Brassica pekinensis  (Lour.) Rupr.&b

Brassica chinensis 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 chinese cabbage seed.

II. Land requirements

    Land to be used for seed production of chinese cabbage shall be free from volunteer plants.

III. Field Inspection

    A minimum of three inspections shall be made, the first before the marketable stage of heads, the 

second when heads have attained the marketable stage and  the third at the flowering 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 of the same species                                                   1600                1000

Fields of the same variety not conforming to the

varietal purity requirements for certification and 

from any of the other species of genus 

Brassica listed below:                                                                                   1600                1000

Brassica rapa (L.) var : turnip

B. napus (L.) var.  napobrassica (L.) Peterm : rutabaga (swede).

B. juncea (L.) Czern & Coss. subsp. juncea : Indian mustard or rai or bangla sarson.

B. juncea (L.) Czern & Coss. subsp. integrifolia (West)n Thell: vegetable mustard or rai.

B. juncea var. rugosa (Roxb) : Pahadi rai

B. Chinensis Juslen non Duthie &Fuller: brown sarson or kali sarson. 

B.napus L.var. glauca (Roxb.) Schulz: yellow sarson or pilli sarson or sarish.

B.napus L.var. napus : laha or maghi or achara rai.

B.tournefortii Gouan: Punjabi rai or jangli rai.

B.nigra (L.) koch: true mustard or black mustard or Banarasi rai.

B.alba (L.) Robenh: white mustard.

B. Specific requirements

        Factor                                                                                              Maximum permitted (%)*

                                                                                                                Foundation            Certified

      Offtypes                                                                                               0.10                       0.20

  ** Plants affected by seed borne disease                                                  0.10                       0.50

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

** Seed borne disease shall be: 

    Black rot (Xanthomonas campestris 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)                                                                           5/kg                       10/kg

Germination  (minimum)                                                                            70%                      70%

Moisture (maximum)                                                                                 7.0%                     7.0%

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