RECEIPT AND REGISTRATION OF SAMPLES

The receipt and registration of seed sample in a seed testing laboratory is an important initial step for quality analysis of seed lots.  The standard receipt and registration procedures help in identifying submitted samples and in carrying out the tests by elimination of procedural errors to the maximum desired level.  The type of sample and place of sampling are important consideration in receipt of sample because the type of gross errors likely to be committed at the place of sampling can be predicted easily and accordingly the steps and planning of purity tests could be worked out.  This becomes more important when a laboratory is dealing with a large number of samples belonging to different crop plants.

There are three types of seed samples received by a seed testing laboratory. They are (1) Service (2) Certification (3) Official samples.

ServiceSamples
Service sample means a sample submitted to the central seed laboratory or to a state laboratory for testing, the results to be used as information for seeding, selling or labelling purposes.  These samples must be tested promptly to provide the sender with immediate information about the quality of seed with which he is dealing.

Certification Sample

Certification sample means a sample of seed drawn by a certification agency or by a duly authorised representative of a certification agency established under section 8 or recognised under section 18 of the Act.

Official Samples

Official sample means a sample of seed drawn by a Seed Inspector to ascertain that the seeds meet minimum limit of specified quality.

I. Entry of Samples:

The information regarding date of sampling, kind and variety, lot number, sample number, origin or class of seed, quantity of seed in lot, kind of test required and name of the sampler are very important for keeping a proper record of the sample in a laboratory and conducting the test. Separate sample to conduct moisture test may be submitted in a moisture proof container.

Any type of sample received in the laboratory shall be entered in a register and a laboratory test number shall be assigned (Registration numbers).All the information pertained to  seed samples should be noted in register.

All possible efforts be made to start testing a sample on the day of receipt. However under unavoidable circumstances the sample shall be stored in dry cool, ventilated room so that changes in the quality of seed are minimised.

Separate entry books may be maintained for the three categories of  samples received. Different laboratory test number series may be used for each category.