What is meant by germplasm collection? What are its benefits?

(N/A) The collection of diverse alleles of all the genes of a crop plant is called germplasm collection.
It is of great benefit in plant breeding programmes as it offers breeders the entire set of genes and alleles,along with the characteristics they express.
The breeder selects the most favourable traits from these genes and manipulates their transfer to a desirable parent to develop improved varieties.