- Done by either Department of agriculture or State Agriculture Universities or Crop Improvement Association etc.
- In Nepal, the by-laws of Seed Act (1988).
- Seed certification is done by seed certification agency i.e. Seed Quality Control Center under Ministry of Agriculture and Cooperatives of Nepal.
- Seed inspections are conducted at three levels: 1) Field inspection 2) Inspection during seed processing and 3) Laboratory testing
- Field inspections:
- To examine the seed crop in the field and to determine its suitability for certification.
- Observations are made on isolation distance, the presence of off-type plants, error in planting, planting ratio in the case of hybrid varieties, presence of objectionable weeds and plants of other crops, and the incidence of disease transmissible through seed.
- Generally, 2-4 inspections are carried out at different phonological stages of crop.
- During field inspections, objectionable weed plants and plant infected by designated (seed borne) diseases are specifically monitored.
- Inspection during seed processing:
- Done to determine whether the seeds have been dried to appropriate moisture level, and whether the correct processing procedure is being followed or not.
- To determine whether appropriate care is taken to avoid mechanical mixtures during seed processing.
- This is not common practice in Nepal.
- Laboratory testing or seed tests:
- Consists of series of seed tests designed to determine the quality seed.
- Before certification, seed lots are subject to test to determine the quality of seeds. A) Purity test b) germination or seed viability test and c) moisture content test.
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