WHEAT (Triticum spp.)

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 wheat seed.

II. Land requirements

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

III. Field Inspection

A minimum of two inspections shall be made between the ear emergence and harvesting of the seed crop.

IV. Field Standards

A. General requirements

1. Isolation

Wheat  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                                                                                    3                    3

Fields of the same variety not conforming to the

varietal purity requirements for certification                                                        3                   3

Fields of wheat, triticale and rye with infection of loose smut

(Ustilago nuda (Jens.) Rostr.) disease in excess

of 0.10% and 0.50% in foundation and certified seed respectively                    150                150

B. Specific requirements

        Factor                                                                                              Maximum permitted (%)*

                                                                                                                Foundation            Certified

      Offtypes                                                                                               0.050                    0.20

  **Inseparable other crop plants                                                                0.010                    0.050

***Plants affected by seed borne disease                                                    0.10                      0.50

* Standards for offtypes and inseparable other crops shall be met at final inspection before harvesting and for loose smut of wheat at any inspection conducted between ear emergence and harvesting.

** Inseparable other crops shall be:

barley, oats, triticale and gram.

*** Seed borne disease shall be:

Loose smut (Ustilago tritici (Pers.) Jens.)

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)                                                                   10/kg                      20/kg

Total Weed seeds (maximum)                                                                  10/kg                      20/kg

* Objectionable weed seeds (maximum)                                                    2/kg                          5/kg

Seeds infested with Nematode galls of 

Ear-cockle (Anguina tritici Milne). and

Tundu (Corynebacterium michiganese pv.

tritici and A.tritici Milne complex) (maximum)                                            None                    None

Seeds infected by Karnal bunt

(Neovossia indica (Mitra) (Mundkur)

(Syn.Tilkletia tritici (Bjerk) Wint) (maximum)                                             0.050%                 0.250% 

                                                                                                              (By number)         (By number)

Germination (minimum)                                                                             85%                        85%

Moisture (maximum)                                                                                12.0%                     12.0%

For vapour-proof containers (maximum)                                                    8.0%                        8.0%

* Objectionable weeds shall be: wild morning glory (Hirankhuri) (Convolvulus arvensis L.) and Gulli danda (Phalaris minior Retz.)