deanmtca@tnau.ac.in
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Seed Production Unit

The Seed Production Unit of the Department of Seed Science and Technology serves as a vital component of the college’s academic and extension activities. It focuses on the systematic production of high-quality seeds of major crops through scientifically managed crop husbandry and strict quality control measures.

This unit acts as a demonstration and training centre for students, researchers, and farmers, helping them understand every step of the seed production chain from the selection of parental lines to the certification and marketing of the final seed lot.

Objectives

  • To impart practical training on scientific seed production techniques for field and horticultural crops.
  • To establish source seed programs (Breeder, Foundation and Certified classes).
  • To maintain genetic purity and varietal identity through field inspection and rouging.
  • To provide quality seed material for instructional farms, research, and local farming communities.
  • To promote entrepreneurship and self-employment opportunities in the seed industry.

Activities and Practices

Selection of Parental Material

Parental lines are chosen based on genetic purity and adaptability. Proper isolation distance is maintained to prevent cross-contamination during hybrid or variety seed production.

Raising of Source Seed Crops

Seed crops are grown under expert supervision by following recommended agronomic practices such as maintaining optimal plant population, proper nutrient management, and effective pest control to achieve high-quality seed yield.

Roguing and Field Inspection

Off-type, diseased, or unwanted plants are periodically removed to ensure genetic purity. Regular field inspections are carried out in accordance with Seed Certification Agency standards.

Pollination Control and Hybridization

In hybrid seed production, methods like hand emasculation and pollination, use of male sterility systems, and proper isolation techniques are employed to produce true hybrid seeds.

Harvesting and Post-Harvest Handling

Seeds are harvested at physiological maturity and processed using seed cleaners, graders, and treaters in the Seed Technology Laboratory to maintain quality.

Seed Testing and Quality Assurance

Seed samples are tested for germination percentage, physical purity, moisture content, and viability before labeling. Only seed lots that meet certification standards are approved for distribution.

Seed Storage and Maintenance

Seeds are stored under controlled temperature and humidity conditions to preserve their viability. Breeder and foundation seed lots are carefully maintained for future multiplication.

Extension and Farmer Training

Regular training programs, workshops, and field demonstrations are organized to promote scientific seed production practices among local farmers and entrepreneurs.

Activities

  • Organized seed production programmes for major crops such as paddy, maize, pulses, oilseeds, and vegetables.
  • Implementation of all crop management practices from sowing to harvesting under expert supervision.
  • Monitoring of seed plots through field inspections and seed testing.
  • Post-harvest activities including seed processing, grading, drying, and packaging.
  • Collaboration with government and private seed agencies for large-scale production and distribution.

Infrastructure and Facilities

  • Seed processing unit equipped with cleaners, graders, seed treatment drum, moisture meter, and germination chamber.
  • Well-maintained seed production plots and isolation fields.
  • Seed testing laboratory with facilities for purity analysis, germination test, and moisture estimation.

Outcomes

  • Students gain practical exposure and field-level experience in scientific seed production.
  • Enhanced technical competency in maintaining genetic purity and quality standards.
  • Promotion of entrepreneurial skills leading to the establishment of student-led seed enterprises.
  • Production and supply of quality seeds to farmers, contributing to agricultural productivity.
  • Strengthening the linkage between academic learning and field application.

Seed Production Unit Photos