Lecture - 3 Types and dormancy of Seeds
Lecture – 3 Seed types and dormancy of seeds Definition: - Seed is technically defined as ripened ovule containing embryo. Another definition says that the seed is a living embryo which is vital and basic input for attaining sustained growth in agricultural production in different agro-climatic conditions. The embryo in the seed remains almost suspended for sometimes and then revives to new development. ´ Nucleus seed: - This is the hundred percent genetically pure seed with physical purity and produced by the original breeder/ state agricultural university from basic nucleus seed stock. ´ Breeder seed: - This is the seed of a new variety that has the highest physical purity and genetically purity and directly provided by the breeder or his institution for further multiplication. ´ Breeder seed produced from nucleus seed under the supervision of a qualified plant breeder in a research institute of agricultural university. ´ The genetic p...