Processing - Objective

Seed processing is done to upgrade the seed quality by removing the foreign material, inert matter, undersized seed, weed seeds, deteriorated and damaged seeds & improving the planting conditions of the seed by applying chemical protectants to the seed. As such, seed processing is essential to:

1.       Make possible uniform planting by proper sizing and by removing seed appendages which hinder planting.

2.       Improve seed marketing by improving quality and maintaining dependable standards for planting seed.

3.       Prevent the spread of weeds by removing weed seed from crop seed.

4.       Improve crop quality by removing seed of other crops from the pure seed.

5.       Protect crops from insects and diseases by chemical treatment.

6.       Reduce seed losses by lowering moisture and drying seeds.

7.       Facilitate uniform marketing by providing storage from harvest time until the seed is needed for planting.


Physical Verification of Raw Seed

 Intake of Raw Seed

The Officer Incharge of a processing plant after verification of the relevant documents such as final inspection report etc. shall accept the raw seed produce on the basis of estimated yield statement given by the Agency. Along with the raw seed intake an undertaking from concerned seed grower may be taken to the effect that the seed produce is not admixed/contaminated at harvesting/threshing/drying and transportation stage. This is subject to examination/verification of the following details:

·         Each bags of raw seed received on the basis of estimated yield statement should be strictly stitches of buckram slip on the top of bags have contain information like crop, variety, stage & farmers code etc. As well as same details should be mentioned on the bags of raw seed.

·         Physical appearance of the seed lot with respect to lusture, inert matter content.

·         Insect infestation and Disease infection by designated seed borne pathogens

·         Moisture percentage of the seed.

·         Total weight of the raw seed.

·         In case of excess quantity of raw seed than the estimated one, prior approval of Director, Seed Certification shall be obtained, else, such seed shall not be accepted at processing plant.

·         In case of cotton raw seed daily intake position should be informed and got verified by the concerned unit incharge of RSSOCA.

·         No raw seed intake will be entertained by the Agency, after the last date as per crop calendar except when the time is extended by Director, Seed Certification.

·         On the last date of intake complete information shall be submitted by the seed production agency to the concerned unit of the Certification Agency office in the following proforma with tentative date for processing:

S. No.

Name/Address of Producer

Area Finally Certified

Expected Yield in q.

Intake Quantity in q.












Code No. Allotted

No. of Bags

Weight per bag

Moisture percentage

Date of intake












·         Stock verification by Certification Agency staff would be done in order to check the information given by each seed production agency.


Approval of Processing Plants


Machinery/Other Equipment Required

Approval of Seed Processing Units

Those seed processing units which have all the required facilities specified by the RSSOCA, shall be registered and allowed to operate. Before expiry of validity period in the month of December the renewal of the processing plant shall be done after submitting request and renewal fee for three years.

The seed processing plant should by and large conform to the following specification for registration and renewal of license by the Agency.

·         The plant should be installed in a suitable building with proper ventilation, natural light and facilities for alternate power arrangement.

·         The ceiling, floor and side walls should reasonably be leak proof and free from cracks and crevices.

·         It should have enough working space around the machine and storage facilities for raw/ processed seed separately under cover to minimize chances of deterioration.

·         The processing machinery assembly should preferably have at least a set of standard equipment.

·         It should be so designed, built, run and managed that chances of seed quality deterioration are the least.

·         It should have sufficient drying yard.

·         The processing capacity of the plant should ensure optimum use of Agency staff and full capacity utilization of the machine.

·         The plant should have easy approach for supervision.

·         All the- activities related to certification procedure should be undertaken only in the presence of the Agency staff/ ASCI.



·         Seed cleaner and grader (Preferably 4 screen) with a pre cleaner.

·         Moisture meter

·         Seed Treater

·         Gravity Separator

·         Indented cylinder

·         Weighing machines

·         Balance to weigh from 1 kg to 25 kg.

·         Platform balance to weigh up to 300 kg.

·         Bag closer

·         Seed sampling triers

·         Wooden pallets, fumigation covers, tarpaulins

·         Stock and name boards

·         Vacuum cleaner

·         Chemical sprayer

·         Exhaust Fans

·         Ceiling fans in processing shed

·         Proper and sufficient light arrangements

·         Fire extinguishers

·         First Aid Box

·         Separate room or facility for Agency Staff

·         Toilets for gents & ladies workers.

·         Pucca floors, plastered walls.

·         All the machines such as seed separators, elevators, conveyors and storage bins should be so arranged that seeds flow continuously from beginning to end yet be flexible enough to bypass a machine on return to a part for re-cleaning.


Construction of Lot Number

Procedure for Construction of Lot Numbers

The lot number will have four parts. Each part will signify and conform to the details given as under:

1.       First Part

This shall be called the “Month, Year code” and indicate the month and year in which the concerned seed crop was harvested. The month shall be represented in abbreviated form and the year shall be represented by the last two digits of the calendar year, such as 97 for 1997 and 98 for 1998 A.D.


Abbreviated form


























2.       Second Part

This is called as the “Production Location Code” and will indi­cate the State or Union Territory where the concerned seed field was located. For this purpose, each State and Union Territory is allotted a permanent numerical code by CSCB. For Rajasthan State the numerical code is 20.

3.       Third Part

This is called as the “Processing Plant Code” and shall indicate the seed processing plant where the relevant lot was processed. For this purpose, the Certification Agency shall allot a numeri­cal code commencing from 01 onwards to each seed processing plant registered within its jurisdiction.

In crops like ground nut, potato, sweet potato, etc. which may not be brought to the processing plant for post-harvest operations including grading, sorting, packing etc. the individual centre where such operations are carried out will be treated as a “Processing Plant” for assigning the processing plant code.

4.       Fourth Part

This shall be called the “Seed Produce Code”. It will indicate ultimate serial number of an individual lot. The procedure for assigning this code will be based on unit of certification. For this purpose, the Certification Agency shall allot a numerical code commencing from 01 for each unit of certification. However, if seeds of more than one unit are bulked together then bulked unit shall be treated as one unit. If the quantity of the seed from one unit of certification exceeds the maximum limit of lot size, it will be further sub-divided into a separate lot. In such cases roman numerical, commencing from (i) will be suffixed with seed lot code e.g. (i).

Therefore, all the four parts of the lot number shall be written in series with a ‘dash (-)’ between first, second, third and fourth parts to indicate the code number of each part distinctly e.g. lot no. MAR96-20-01-01


TAGGING (Advance Packing)

The graded seed should be tagged after obtaining results of seed testing laboratory and on clearance by Seed Certification Agency. However, they may be advance tagged if requisite conditions are fulfilled and to expedite processing for marketing purposes. This is allowed provided the producer submits a written undertaking to RSSOCA that:

·         The seed shall not be moved out without receipt of seed testing report and Agency’s final approval and until the certifi­cate under section 9 of the Seed Act is issued by RSSOCA.

·         In the event of seed lot found to be substandard the tag and seal shall be removed from each container and the tags shall be returned to the Agency. Similarly, information regarding lot no. and class shall be erased from bags.

In such cases cost of tags shall be borne by concerned seed pro­ducing agency.



Most of the seed crops like oil seeds, pulses, millets and vegetables etc. are packed in small packings. The foundation seed class lots, in which slurry treatment is pre-requisite are packed indirectly or after getting clearance from the STL and Agency.

Each tag shall be individually signed by the Agency representa­tive after completion of all entries on tags. These tags then shall be stitched to each container along with the producer’s label duly signed by SPA Staff.

After the tags are stitched to the bags, a lead seal shall be affixed at the thread end where sewing was completed by bag closer, while lead seal shall be affixed to both the ends of ordinary sewing machine or criss-cross stitching is used. Vapour proof containers shall be heat sealed to minimize the chances of admixture, deliberate or otherwise and detection of tampering, if any. Every lead seal is to be pressed firmly by a sealing plier to emboss the Agency name and the plant no. where the seed is packed.



In crops like ground nut, castor, maize etc., on the request of seed producer, permission may be granted to take up certification work i.e. packing at the field level provided: -

·         The seed processing unit is located far away from the seed field.

·         Transportation of the bulk seed produce may not be economi­cal.

·         Lack of adequate storage space at the seed processing unit.

·         Any other reasons to the satisfaction of the Director of Certification Agency.


All the work in respect of the above crops shall be undertaken in presence of the Agency officials and on remitting prescribed fee.