Unit I
Variety Development systems and Maintenance; Definition- variety, cultivar, extant variety, essentially derived variety, independently derived variety, reference variety, farmers' variety, landraces, hybrid, and population; [Get Notes]
Variety testing, release and notification systems and norms in India and abroad. [Get Notes]
Unit II
DUS testing- DUS Descriptors for major crops; Genetic purity concept and maintenance breeding. Factors responsible for genetic deterioration of varieties safeguards during seed production [Get Notes]
Unit III
Maintenance of varieties in self and cross pollinated crops, isolation distance [Get Notes]
Principles of seed production; Methods of nucleus and breeder seed production; [Get Notes]
Generation system of seed multiplication -nucleus, breeders, foundation, certified. [Get Notes]
Unit IV
Quality seed production technology of self and cross-pollinated crop varieties, viz., cereals and millets (wheat, barley, paddy, pearlmillet, sorghum, maize and ragi, etc.); Pulses (greengram, blackgram, cowpea, pigeonpea, chickpea, fieldpea, lentil); Oilseeds (groundnut, soybean, sesame, castor, sunflower, safflower, linseed, rapeseed and mustard); fibres (cotton/ jute) and forages (guar, forage sorghum, teosinte, oats, berseem, lucerne). [Get Notes]
Unit V
Seed certification procedures; Seed laws and acts, plant variety protection regulations in India and international systems. [Get Notes]
