Seed Production Principles Quiz

Principles of Quality Seed Production

• Genetic, agronomic, and seed technology principles are key interventions for maintaining seed quality.
• Production of genetically pure seed requires technical know-how, skill, and financial investment.
• Varied interventions are needed based on flowering pattern, floral structure, pollination behavior, and genetic constitution of the variety.
• Maintenance breeding is crucial for purifying and stabilizing released genotypes.
• The initial seed for raising a certified seed crop should be from an approved source and of appropriate class.
• Previous cropping history and isolation requirements are essential to avoid genetic contamination.
• Isolation in time involves staggering the planting time of different varieties to prevent cross-pollination.
• Isolation by distance is based on the concept that distant seed crops from cross-compatible crops will minimize pollen contamination.
• Minimum varietal purity standards are specified for non-hybrids under OECD seed schemes.
• For example, the minimum varietal purity standard for Triticum aestivum basic seed is 99.9% under OECD seed schemes.
• The isolation distance recommended in regulations takes into account the method and mode of pollination.
• The distance isolation is an efficient type to achieve in most crops and is based on the concept that if a seed crop is sufficiently distant from any other cross-compatible crop, the adverse pollen contamination will be negligible.