GUAR (CLUSTER BEAN) Cyamopsis tetragonaloba (L.) Taub.)

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  cluster bean seed. 

II. Land requirements

Land to be used for seed production of cluster bean shall be free of volunteer plants. 

III. Field Inspection

A minimum of  two inspections shall be made, the first before flowering and the second at flowering and fruit stage.

IV. Field Standards

A. General requirements

1. Isolation

Cluster bean 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                                                                                   10                    5

Fields of the same variety not conforming to 

varietal purity requirements for certification                                                      10                   5  

B. Specific requirements

        Factor                                                                                              Maximum permitted (%)*

                                                                                                                Foundation            Certified

       Offtypes                                                                                               0.10                    0.20

 ** Plants affected by seed borne disease                                                    0.10                    0.20

 *  Maximum permitted at the final inspection.

** Seed borne disease shall be: Bacterial blight (Xanthomonas campestris pv cyamopsidis Patel, Dhande & Kulkarni 

Anthracnose (Colletotrichum lindemuthianum (Sacc.&Magn.) Br.&cav.) Ascochyta blight (Ascochyta spp.) (for hill areas only)

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                   10 / kg

Weed seeds (maximum)                                                                            None                    None

Other distinguishable varieties (maximum)                                                 10/ kg                    20/ kg

Germination including hard seeds (minimum)                                              70%                      70%

Moisture (maximum)                                                                                 9.0%                   9.0%

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