Hybridization Crossing Sexual Crossing Asexual Crossing Distant Crossing-interspecific Crossing Intraspecific Crossing-inter-varietal Crossing In this chapter: Hybridization Breeding i.e. CROSS BREEDING
1. The Concept of Germplasm Resources种质资源的概念 Genetic Resources Gene Resources Varietal Resources Gene Bank It refers to all the plant materials used for plant breeding