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seed production and seed multiplication (T.Y.B.Sc)

Principles of seed production and stages of seed multiplication   Seed quality             A good should have the following quality characters.              1.Improved variety : It should be superior to the existing variety i.e. the yield should be higher by 20-25% than the existing variety or it should have some desirable attributes like disease resistance , drought resistance ,salt tolerance etc., with good yield potential.             2. Genetic purity: The seed should be true to type .The seed should possess all the genetic qualities /characters , which the breeder has placed in the variety, genetic purity has direct effect on the yields .If there is deterioration ,there would be proportionate decrease in the yield of performance.              3....