By
RAVI BANJADE
ROLL NO : 20
INTRODUCTION TO SEED & SEED QUALITY

SEED
A true seed may be defined as a fertilized mature
ovule that posses an embryonic plant, stored food
material and a protective coat which is viable and
has got capacity to germinate.

SEED QUALITY
• Seed is said to be quality if it is scientifically
produced and contain varietal purity,
• free from weed seeds and other crop seed.
• having high germination and vigor
• safe moisture content.

IMPORTANCE OF Q.S.
• basic input in crop production
• high genetic potential
• improve the productivity of crops
• carrier of new technology
• cut down the seed requirement
• High quality produce

CLASSES OF QUALITY SEED
1) Nucleus Seed
• Obtained by the breeder through individual plant selection.
• In our country, nucleus seed is synonymous with breeder seed.
2) Breeder Seed
• Breeder seed is the progeny of nucleus seed.
• has golden yellow tag.

3) Foundation seed
• Foundation seed is the progeny of breeder
• relatively less pure compared to breeder's seed
• has white tag.
4) Certified seed (1st generation)
• progeny of foundation seed
• has tag with blue border.
5) Certified seed (2nd generation)
• progeny of certified seed 1st generation.
• has tag with green border.
6. Improved seed
• progeny of certified seed 2nd generation.
• have a wide range of adaptability, tolerance to adverse
environmental conditions such as drought, flood and frost.
• available in sufficient quantity.
• has yellow tag and is used for commercial cultivation of crop