GINER

(Zingiber officinale Rose)

I. Application and Amplification of General Seed Certification Standards

II.  The General Seed Certification Standards are basic and, together with the following specific standards 

     constitute the standards for certification of seed giner.

A. The General Standards are amplified as follows to apply specifically to ginger.

     All certified classes shall be produced   by vegetative propogation of underground  rhizome, whose source and identity may be assured and approved by the Certification Agency.

III. Land requirements

* Partial shade with gentle slopy landscape.

* Soil should be loose, friable and offer minimum resistance to rhizome development.  Soil depth 30cm or 

   more, high organic matter and pH of 6-6.5 are favourable.  Virgin forest soil  particularly after defestation is 

   ideal.

* Planting should be avoided if soil is infested with phythium sp., pseudomonas solanacearum, and 

   Meloidogyne incognita.

* Land to be used for seed/planting material production of ginger shall be free of volunteer plants.

IV. Field Inspection

        A minimum of four  inspections shall be made as follows: 

A.The first  inspection  shall be made at the time of planting   variety isolation, rhizome rot, seed  piece weight 

    and  spacing.

B.The second inspection shall be made about 45 - 125 days after planting to check germination, sprouting,

    rhizome rot and shoot borer incidence.

C.The third inspection shall be made about 180 - 190 days after planting to check off types, rhizome rot and 

    Phyliosticta leaf spot.

D.The fourth inspection shall be made before harvest of or between 240-250 days after planting to verify rhizome rot, scale insect and meal bug infestation.

V. Field Standards

A. General requirements

1. Isolation

        The fields/blocks of seed ginger 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 variety                                                                                     3                       3

Fields of the same variety not conforming to 

varietal purity requirements for certification                                                      3                       3

B. Specific requirements

Factor                                                          Inspection stage                  Foundation            Certified

     1. Spacing                                                         I                               45 x 30 cm          45x30 cm    

     2. Seed piece weight                                         I                                20-25 g               20-25g

     3. Rhizome rot                                                  I                                0                          0

                                                                             II to IV                      0                          0

     4. Shoot borer                                                  II to III                      1%                       5%

     5. Off types                                                      III                              0.5%                    1%

     6. Phyllosticta Leaf spot Bacterial wilt               III                              1%                       5%

        (Rhizictonis solanecsyur)

     7. Scale insect                                                   IV                             1%                       5%

     8. Mealy bugs                                                   IV                              1%                       5%

Note:

1. All offtypes and diseased plants should be rogued out along with rhizomes and 

    destroyed.                                                    

2. Gaps in the seed plot should not be more than 10.0%

VI. Seed Standards.

Factor                                                                     Foundation                     Certified

1. Appearance                                                    Healthy & plumpy         Healthy&Plumpy 

2. Uniformity (Minimum)                                              95%                            85 - 90%

3. Dry rot (Maximum)                                                   1%                              5%

4. Phyllosticta (Maximum)                                            5%                              10%

5. Scales (Maximum)                                                    1%                               5%

6. Mealy bugs(Maximum)                                             1%                               5%     

Note:

1. In a seed lot.  rhizomes not conforming to specific characteristics of a variety shall not exceed 0.5% and

    and 1% (by number - maximum) for foundation and certified seed classes, respectively.

2. The seed material shall be reasonably clean healthy and firm.

3. Cut, bruished, or those damaged by insects shall not exceed more than 1.0%(by weight).