• Land should be free of volunteer plants .
• The previous crop should not be the same variety or other varieties of the same crop.
• It can be the same variety if it is certified as per the procedures of certification agency.

I solation

• For certified / quality seed production, leave a distance of 5 m all around the field from the same and other varieties of the crop.

• Short term storage in gunny cloth bag (8 - 9 months) with 9-10% moisture content .
• Medium term storage in polylined gunny bag (12 - 15 months) with 8 - 9 % moisture.
• Long term storage in 700 gauge polythene bag (more than 15 months) with 8% moisture.