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SST 502 SEED PRODUCTION: PRINCIPLES AND PRACTICES                                                                               (3L+2P) I

Objective
To introduce the basic principles of quality seed production.

Theory

UNIT I
Seed as a basic input in agriculture, quality concept and importance of genetic purity in seed production; life span of varieties and factors responsible for their deterioration.

UNIT II
Steps in the development, evaluation, release, notification and maintenance of varieties; classification of  crop plants in relation to the mode of reproduction and its modification for hybrid seed production.

UNIT III
Principles of hybrid seed production viz. isolation, synchronization of flowering, field inspection, rogueing etc.; special agronomical practices for seed production and effect of environment before harvest on seed quality; male sterility and self incompatibility in hybrid seed production, role of insect pollinators and their management for hybrid seed production, ecology and dynamics of pollinators.

UNIT IV
Seed quality control system and organization, suitable seed production areas, seed village concept; agencies responsible for seed production, seed industry in India, custom seed production, role of seed growers and seed producers in hybrid seed production.

Practicals
Seed production in rice and maize (varieties and hybrids), pollination in hybrid seed production plots of rice and maize, visit to Bajra and cotton seed production plots, visit to vegetable seed production field, hybrid seed production in cauliflower. Emasculation and pollination in bitter gourd and brinjal. Visit to seed production companies and certification agencies. Visit to seed processing units.

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