Seed quality

 The seed quality is the genetic and physical purity that the seed must possess. The seeds should be physiologically healthy.

Some characters:

1. physical quality: from other seeds, debris, inert matter, diseased seed and insect damaged seed

2. Genetic Purity:  true to type, resemble its mother

3. Physiological Quality: seed germination and seed vigour

4. Seed health: absence of insect infestation and fungal infection